SiGe、高线性度、2300MHz 4000MHz 上变频下变频混频器，带有 · 2010-02-24 ·...

SiGe、高线性度、2300MHz至4000MHz 上变频/下变频混频器，带有LO缓冲器

MA

X2044

________________________________________________________________ _Maxim Integrated Products_ _ 1

概述MAX2044单路、高线性度上/下变频混频器可为2300MHz至4000MHz的LTE、WiMAX™以及MMDS无线基础设施应用提供+32.5dBm输入IP3、8.5dB噪声系数和7.7dB转换损耗。MAX2044具有2600MHz至4300MHz较宽的LO频率范围，可用于所有2.5GHz和3.5GHz应用中的低端或高端LO注入结构。

除具有优异的线性度和噪声性能外，MAX2044还具有非常高的元件集成度。该器件包括一个双平衡无源混频器核、一

个LO缓冲器以及支持单端RF和LO输入的片内非平衡变压器。MAX2044需要一个标称0dBm的LO驱动，电源电流在VCC=5.0V时的典型值为138mA、在VCC=3.3V时为121mA。

MAX2044与MAX2029/MAX2031650MHz至1000MHz混频器以及MAX2039/MAX2041/MAX20421700MHz至3000MHz混频器引脚相似。这使得该系列上/下变频混频器非常适合多个频段采用相同PCB布局的应用。

MAX2044采用紧凑的20引脚、薄型QFN(5mmx5mm)封装，带有裸焊盘。在-40°C至+85°C扩展级温度范围内，可保证电气性能。

应用2.5GHzWiMAX和LTE基站

2.7GHzMMDS基站

3.5GHzWiMAX和LTE基站

固定宽带无线接入

无线本地环路

个人移动无线装置

军用系统

特性S 2300MHz至4000MHz RF频率范围

S 2600MHz至4300MHz LO频率范围

S 50MHz至500MHz IF频率范围

S 7.7dB转换损耗

S 8.5dB噪声系数

S +32.5dBm (典型值)输入IP3

S 21dBm (典型值)输入1dB压缩点

S PRF = -10dBm时，具有68dBc (典型值)的2RF - 2LO杂散抑制

S 集成LO缓冲器

S 内部RF和LO非平衡变压器支持单端输入

S -3dBm至+3dBm的低LO驱动

S 引脚相似于MAX2029/MAX2031 650MHz至1000MHz系列混频器和MAX2039/MAX2041/MAX2042 1700MHz至3000MHz系列混频器

S 采用5.0V或3.3V单电源供电

S 外部电流设置电阻允许折中选择混频器的低功耗/低性能工作模式

19-5002; Rev 0; 10/09

+表示无铅(Pb)/符合RoHS标准的封装。*EP=裸焊盘。T=卷带包装。

WiMAX是WiMAX论坛的商标。

定购信息

本文是英文数据资料的译文，文中可能存在翻译上的不准确或错误。如需进一步确认，请在您的设计中参考英文资料。

有关价格、供货及订购信息，请联络Maxim亚洲销售中心：10800 852 1249 (北中国区)，10800 152 1249 (南中国区)，或访问Maxim的中文网站：china.maxim-ic.com。

PART TEMP_RANGE PIN-PACKAGE

MAX2044ETP+ -40NC to +85NC 20 Thin QFN-EP*

MAX2044ETP+T -40NC to +85NC 20 Thin QFN-EP*

http://china.maxim-ic.com


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Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

VCC to GND ..........................................................-0.3V to +5.5VIF+, IF-, LOBIAS to GND .......................... -0.3V to (VCC + 0.3V)RF, LO Input Power .......................................................+20dBmRF, LO Current (RF and LO is DC shorted to GND through a balun)................................... .............50mAContinuous Power Dissipation (Note 1) .................................5WBJA (Notes 2, 3) ............................................................ +38NC/W

BJC (Notes 1, 3) ............................................................ +13NC/WOperating Case Temperature Range (Note 4) ..................................... TC = -40NC to +85NCJunction Temperature .....................................................+150NCStorage Temperature Range ............................ -65NC to +150NCLead Temperature (soldering, 10s) ................................+300NC

5.0V_SUPPLY_DC_ELECTRICAL_CHARACTERISTICS(Typical Application Circuit, VCC = 4.75V to 5.25V, no input RF or LO signals. TC = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = 5.0V, TC = +25NC, all parameters are production tested.)

ABSOLUTE_MAXIMUM_RATINGS

Note_1: Based on junction temperature TJ = TC + (BJC x VCC x ICC). This formula can be used when the temperature of the exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction temperature must not exceed +150NC.

Note_2: Junction temperature TJ = TA + (BJA x VCC x ICC). This formula can be used when the ambient temperature of the PCB is known. The junction temperature must not exceed +150NC.

Note_3: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to china.maxim-ic.com/thermal-tutorial.

Note_4: TC is the temperature on the exposed pad of the package. TA is the ambient temperature of the device and PCB.

3.3V_SUPPLY_DC_ELECTRICAL_CHARACTERISTICS(Typical Application Circuit, VCC = 3.0V to 3.6V, no input RF or LO signals. TC = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = 3.3V, TC = +25NC, parameters are guaranteed by design, unless otherwise noted.)

RECOMMENDED_AC_OPERATING_CONDITIONS

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage VCC 4.75 5.0 5.25 V

Supply Current ICC 138 155 mA


Supply Voltage VCC 3.0 3.3 3.6 V

Supply Current ICC Total supply current, VCC = 3.3V 121 135 mA


RF Frequency Range fRF

Typical Application Circuit with C1 = 3.3nH and C12 = 0.3pF, see Table 1 for details (Note 5)

2300 3000

MHzTypical Application Circuit with C1 = 8.2pF and C12 not installed, see Table 1 for details (Note 5)

3000 4000

LO Frequency fLO (Note 5) 2600 4300 MHz

IF Frequency fIF

Using an M/A-Com MABAES0029 1:1 transformer as defined in the Typical Application Circuit, IF matching components affect the IF frequency range (Note 5)

50 500 MHz

LO Drive PLO (Note 5) -3 0 +3 dBm

http://china.maxim-ic.com/thermal-tutorial


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5.0V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(DOWNCONVERTER_MODE,__fRF_=_3100MHz_to_3900MHz,_LOW-SIDE_LO_INJECTION)(Typical Application Circuit with tuning elements outlined in Table_1, VCC = 4.75V to 5.25V, RF and LO ports are driven from 50I sources, PLO = -3dBm to +3dBm, PRF = 0dBm, fRF = 3100MHz to 3900MHz, fLO = 2800MHz to 3600MHz, fIF = 300MHz, fRF > fLO, TC = -40NC to +85NC. Typical values are at VCC = 5.0V, PRF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3200MHz, fIF = 300MHz, TC = +25NC. All parameters are guaranteed by design, unless otherwise noted.) (Note 6)


Conversion Loss LC TC = +25NC (Notes 7, 8) 7.2 7.7 8.5 dB

Loss Variation vs. Frequency DLC

fRF = 3100MHz to 3900MHz, over any 100MHz band

0.15

dBfRF = 3100MHz to 3900MHz, over any 200MHz band

0.25

Conversion Loss Temperature Coefficient

TCCLfRF = 3100MHz to 3900MHz, TC = -40NC to +85NC

0.01 dB/NC

Input Compression Point IP1dB (Note 9) 21 dBm

Third-Order Input Intercept Point

IIP3

fRF1 - fRF2 = 1MHz, PRF = 0dBm per tone(Note 7, 8)

28.3 32.5

dBmfRF = 3500MHz, fRF1 - fRF2 = 1MHz, PRF = 0dBm per tone. TC = +25NC (Notes 7, 8)

30.0 32.5

Third-Order Input Intercept Point Variation Over Temperature

fRF = 3100MHz to 3900MHz, fIF = 300MHz, fRF1 - fRF2 = 1MHz, PRF = 0dBm per tone, TC = -40NC to +85NC

±0.5 dBm

Noise Figure NFSSB

Single sideband, no blockers present (Notes 7, 10)

8.5 10

dBSingle sideband, no blockers present, TC = +25NC (Notes 7, 10)

8.5 9.2

Noise Figure Temperature Coefficient

TCNFSingle sideband, no blockers present, TC = -40NC to +85NC

0.018 dB/NC

Noise Figure Under Blocking Conditions

NFB

+8dBm blocker tone applied to RF port, fBLOCKER = 3750MHz, fRF = 3500MHz, fLO = 3200MHz, PLO = 0dBm, VCC = 5.0V, TC = +25NC (Notes 7, 10, 11)

17.5 20 dB

2RF - 2LO Spurious Rejection 2 x 2

fSPUR = fLO + 150MHz, TC = +25NC

PRF = -10dBm (Notes 7, 10)

62 68

dBcPRF = 0dBm (Notes 7, 8) 52 58

fSPUR = fLO + 150MHz


60 68

PRF = 0dBm (Notes 7, 8) 50 58


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5.0V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(DOWNCONVERTER_MODE,__fRF_=_3100MHz_to_3900MHz,_LOW-SIDE_LO_INJECTION)_(continued)(Typical Application Circuit with tuning elements outlined in Table_1, VCC = 4.75V to 5.25V, RF and LO ports are driven from 50I sources, PLO = -3dBm to +3dBm, PRF = 0dBm, fRF = 3100MHz to 3900MHz, fLO = 2800MHz to 3600MHz, fIF = 300MHz, fRF > fLO, TC = -40NC to +85NC. Typical values are at VCC = 5.0V, PRF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3200MHz, fIF = 300MHz, TC = +25NC. All parameters are guaranteed by design, unless otherwise noted.) (Note 6)


3RF - 3LO Spurious Rejection 3 x 3

fSPUR = fLO + 100MHz, TC = +25NC


82 89

dBcPRF = 0dBm (Notes 7, 8) 62 69

fSPUR = fLO + 100MHz


81 89

PRF = 0dBm (Notes 7, 8) 61 69

RF Input Return Loss RLRFLO on and IF terminated into a matched impedance

16 dB

LO Input Return Loss RLLORF and IF terminated into a matched impedance

14 dB

IF Output Impedance ZIFNominal differential impedance at the IC’s IF outputs

50 I

IF Output Return Loss RLIF

RF terminated into 50I, LO driven by a 50I source, IF transformed to 50I using external components shown in the Typical Application Circuit

16 dB

RF-to-IF Isolation fRF = 3500MHz, PLO = +3dBm (Note 8) 33 42 dB

LO Leakage at RF PortfLO = 2500MHz to 4000MHz, PLO = +3dBm (Notes 7, 8)

-31 dBm

2LO Leakage at RF Port PLO = +3dBm -35 dBm

LO Leakage at IF Port PLO = +3dBm (Note 8) -28 dBm


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3.3V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(DOWNCONVERTER_MODE,__fRF_=_3100MHz_to_3900MHz,_LOW-SIDE_LO_INJECTION)(Typical Application Circuit with tuning elements outlined in Table_1, RF and LO ports are driven from 50I sources. Typical values are at VCC = 3.3V, PRF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3200MHz, fIF = 300MHz, TC = +25NC, unless otherwise noted.) (Note 6)


Conversion Loss LC 7.7 dB

Loss Variation vs. Frequency DLCfRF = 3100MHz to 3900MHz, over any 100MHz band

0.1 dB



0.009 dB/NC

Input Compression Point IP1dB (Note 9) 19.5 dBm


IIP3 fRF1 - fRF2 = 1MHz, PRF = 0dBm per tone 29.5 dBm

Third-Order Input Intercept Variation Over Temperature

fRF1 - fRF2 = 1MHz, PRF = 0dBm per tone, TC = -40NC to +85NC

±0.2 dB

Noise Figure NFSSB Single sideband, no blockers present 8.5 dB

Noise Figure Temperature Coefficient

TCNFSingle sideband, no blockers present, TC = -40NC to +85NC

0.018 dB/NC

2RF - 2LO Spurious Rejection 2 x 2fSPUR = fLO + 150MHz

PRF = -10dBm 69dBc

PRF = 0dBm 64

3RF - 3LO Spurious Rejection 3 x 3fSPUR = fLO + 100MHz

PRF = -10dBm 73.3dBc

PRF = 0dBm 63.3


18 dB


19 dB


50 I



14.5 dB

RF-to-IF IsolationfRF = 3100MHz to 3900MHz, PLO = +3dBm

41 dB

LO Leakage at RF PortfLO = 2800MHz to 3600MHz, PLO = +3dBm

-30 dBm

2LO Leakage at RF PortfLO = 2800MHz to 3600MHz, PLO = +3dBm

-25.6 dBm

LO Leakage at IF PortfLO = 2800MHz to 3600MHz, PLO = +3dBm

-27 dBm


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5.0V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(DOWNCONVERTER_MODE,__fRF_=_2300MHz_to_2900MHz,_HIGH-SIDE_LO_INJECTION)(Typical Application Circuit with tuning elements outlined in Table_1, RF and LO ports are driven from 50I sources. Typical values are at VCC = 5.0V, PRF = 0dBm, PLO = 0dBm, fRF = 2600MHz, fLO = 2900MHz, fIF = 300MHz, TC = +25NC, unless otherwise noted.) (Note 6)




0.15 dB



0.008 dB/NC


IIP3 fRF1 - fRF2 = 1MHz, PRF = 0dBm per tone 34 dBm



±0.2 dB

2LO - 2RF Spurious Rejection 2 x 2 fSPUR = fLO - 150MHzPRF = -10dBm 67

dBcPRF = 0dBm 62


dBcPRF = 0dBm 69


23 dB


17 dB


50 I



13.6 dB


39 dB


-29.5 dBm


-43 dBm


-28.6 dBm


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5.0V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(DOWNCONVERTER_MODE,__fRF_=_3100MHz_to_3900MHz,_HIGH-SIDE_LO_INJECTION)(Typical Application Circuit with tuning elements outlined in Table_1, RF and LO ports are driven from 50I sources. Typical values are at VCC = 5.0V, PRF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3800MHz, fIF = 300MHz, TC = +25NC, unless otherwise noted.) (Note 6)




0.15 dB



0.008 dB/NC


IIP3 fRF1 - fRF2 = 1MHz, PRF = 0dBm per tone 31.5 dBm



±0.2 dB


dBcPRF = 0dBm 62

3LO - 3RF Spurious Rejection 3 x 3 fSPUR = fLO - 100MHzPRF = -10dBm 76.7

dBcPRF = 0dBm 66.7


17.7 dB


16.3 dB


50 I



15 dB


41 dB


-30 dBm


-21 dBm


-27.2 dBm


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5.0V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(UPCONVERTER_OPERATION,__fRF_=_3100MHz_to_3900MHz,_LOW-SIDE_LO_INJECTION)(Typical Application Circuit with tuning elements outlined in Table_2, RF and LO ports are driven from 50I sources. Typical values are for TC = +25NC, VCC = 5.0V, PIF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3300MHz, fIF = 200MHz, unless otherwise noted.)

3.3V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(UPCONVERTER_OPERATION,__fRF_=_3100MHz_to_3900MHz,_LOW-SIDE_LO_INJECTION)(Typical Application Circuit with tuning elements outlined in Table_2, RF and LO ports are driven from 50I sources. Typical values are for TC = +25NC, VCC = 3.3V, PIF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3200MHz, fIF = 200MHz, unless otherwise noted.)



Conversion Loss Variation vs. Frequency

DLC


0.2


0.25


TCCL TC = -40NC to +85NC 0.01 dB/NC

Input Third-Order Intercept Point IIP3fIF1 = 200MHz, fIF2 = 201MHz, PIF = 0dBm/tone

33.5 dBm

IIP3 Variation with TCfIF1 = 200MHz, fIF2 = 201MHz, PIF = 0dBm/tone, TC = -40NC to +85NC

±0.2 dB

LO ± 2IF Spur 1 x 2LO - 2IF 61.6

dBcLO + 2IF 60.2


dBcLO + 3IF 80.3

Output Noise Floor POUT = 0dBm (Note 11) -165 dBm/Hz


Conversion Loss LC 8 dB

Conversion Loss Variation vs. Frequency

DLC


0.2


0.25


TCCL TC = -40NC to +85NC 0.01 dB/NC

Input Third-Order Intercept Point IIP3fIF1 = 200MHz, fIF2 = 201MHz, PIF = 0dBm/tone

29.5 dBm

IIP3 Variation with TCfIF1 = 200MHz, fIF2 = 201MHz, PIF = 0dBm/tone, TC = -40NC to +85NC

±0.2 dB


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3.3V_SUPPLY_AC_ELECTRICAL_CHARACTERISTICS_(UPCONVERTER_OPERATION,__fRF_=_3100MHz_to_3900MHz,_LOW-SIDE_LO_INJECTION)_(continued)(Typical Application Circuit with tuning elements outlined in Table_2, RF and LO ports are driven from 50I sources. Typical values are for TC = +25NC, VCC = 3.3V, PIF = 0dBm, PLO = 0dBm, fRF = 3500MHz, fLO = 3200MHz, fIF = 200MHz, unless otherwise noted.)

Note_5: Operation outside this range is possible, but with degraded performance of some parameters. See the Typical Operating Characteristics.

Note_6: All limits reflect losses of external components, including a 0.5dB loss at fIF = 300MHz due to the 1:1 impedance trans-former. Output measurements were taken at IF outputs of the Typical Application Circuit.

Note_7: Guaranteed by design and characterization.Note_8: 100% production tested for functional performance.Note_9: Maximum reliable continuous input power applied to the RF or IF port of this device is +20dBm from a 50I source.Note_10: Not production tested.Note_11: Measured with external LO source noise filtered so the noise floor is -174dBm/Hz. This specification reflects the effects

of all SNR degradations in the mixer, including the LO noise as defined in Application Note 2021: Specifications and Measurement of Local Oscillator Noise in Integrated Circuit Base Station Mixers.

典型工作特性(Typical Application Circuit with tuning elements outlined in Table_ 1,_ Downconverter_ Mode,_ VCC_ =_ 5.0V,_ fRF_ =_ 3000MHz_ to_4000MHz,_LO_is_low-side_injected for a 300MHz IF, PRF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted.)



dBcLO + 2IF 57.8


dBcLO + 3IF 69.5

Output Noise Floor POUT = 0dBm (Note 11) -165 dBm/Hz

CONVERSION LOSS vs. RF FREQUENCY

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toc0

1

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

TC = +85°C TC = +25°C

TC = -40°C


MAX

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toc0

2

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

PLO = -3dBm, 0dBm, +3dBm


MAX

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toc0

3

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

VCC = 4.75V, 5.0V, 5.25V


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典型工作特性(续)(Typical Application Circuit with tuning elements outlined in Table_ 1,_ Downconverter_ Mode,_ VCC_ =_ 5.0V,_ fRF_ =_ 3000MHz_ to_4000MHz,_LO_is_low-side_injected for a 300MHz IF, PRF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted.)

INPUT IP3 vs. RF FREQUENCYM

AX20

44 to

c04

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

29

31

33

35

37

273000 4000

TC = +85°C

TC = +25°C

TC = -40°C

PRF = 0dBm/TONE

INPUT IP3 vs. RF FREQUENCY

MAX

2044

toc0

5

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

29

31

33

35

37

273000 4000

PLO = -3dBm

PLO = 0dBm

PLO = +3dBm

PRF = 0dBm/TONE


MAX

2044

toc0

6

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

38003600340032003000 4000

VCC = 4.75V

VCC = 5.0V

VCC = 5.25V

PRF = 0dBm/TONE

29

31

33

35

37

27

2RF - 2LO RESPONSE vs. RF FREQUENCY

MAX

2044

toc0

7

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

3800360034003200

55

60

65

70

75

503000 4000

PRF = 0dBm

TC = +85°C

TC = +25°C

TC = -40°C

2RF - 2LO RESPONSE vs. RF FREQUENCYM

AX20

44 to

c08

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

3800360034003200

55

60

65

70

75

503000 4000

PRF = 0dBm

PLO = +3dBm

PLO = -3dBm

PLO = 0dBm


MAX

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toc0

9

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

3800360034003200

55

60

65

70

75

503000 4000

PRF = 0dBm

VCC = 4.75V

VCC = 5.0V

VCC = 5.25V


MAX

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toc1

0

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

3800360034003200

65

75

85

553000 4000

TC = +85°C

TC = +25°CTC = -40°C

PRF = 0dBm


MAX

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toc1

1

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

3800360034003200

65

75

85

553000 4000

PLO = -3dBm

PLO = +3dBm

PLO = 0dBm

PRF = 0dBm


MAX

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toc1

2

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

3800360034003200

65

75

85

553000 4000

VCC = 4.75V

VCC = 5.25V

VCC = 5.0V

PRF = 0dBm


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NOISE FIGURE vs. RF FREQUENCYM

AX20

44 to

c13

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

6

7

8

9

10

11

538003600340032003000 4000

TC = +85°CTC = +25°C

TC = -40°C

NOISE FIGURE vs. RF FREQUENCY

MAX

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toc1

4

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

6

7

8

9

10

11

538003600340032003000 4000



MAX

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toc1

5

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

6

7

8

9

10

11

538003600340032003000 4000

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

INPUT P1dB vs. RF FREQUENCY

MAX

2044

toc1

6

RF FREQUENCY (MHz)

INPU

T P 1

dB (d

Bm)

3800360034003200

19

21

23

25

173000 4000

TC = +85°C

TC = +25°C

TC = -40°C

MAX

2044

toc1

7

RF FREQUENCY (MHz)

3800360034003200

19

21

23

25

173000 4000

PLO = 0dBm

PLO = +3dBm

PLO = -3dBm


INPU

T P 1

dB (d

Bm)

MAX

2044

toc1

8

RF FREQUENCY (MHz)

3800360034003200

19

21

23

25

173000 4000

VCC = 4.75V

VCC = 5.25V

VCC = 5.0V


INPU

T P 1

dB (d

Bm)

LO LEAKAGE AT IF PORTvs. LO FREQUENCY

MAX

2044

toc1

9

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

3500330031002900

-30

-20

-10

-402700 3700

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2044

toc2

0

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

3500330031002900

-30

-20

-10

-402700 3700



MAX

2044

toc2

1

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

3500330031002900

-30

-20

-10

-402700 3700

VCC = 4.75V, 5.0V, 5.25V


MA

X20

44

12_ _ ______________________________________________________________________________________


RF-TO-IF ISOLATION vs. RF FREQUENCYM

AX20

44 to

c22

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000

TC = -40°CTC = +25°C

TC = +85°C

RF-TO-IF ISOLATION vs. RF FREQUENCY

MAX

2044

toc2

3

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000



MAX

2044

toc2

4

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000

VCC = 4.75V, 5.0V, 5.25V

LO LEAKAGE AT RF PORTvs. LO FREQUENCY

MAX

2044

toc2

5

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3000 3500

-40

-30

-20

-502500 4000

TC = -40°CTC = +25°C

TC = +85°C


MAX

2044

toc2

6

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3000 3500

-40

-30

-20

-502500 4000



MAX

2044

toc2

7

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3000 3500

-40

-30

-20

-502500 4000

VCC = 4.75V, 5.0V, 5.25V

2LO LEAKAGE AT RF PORTvs. LO FREQUENCY

MAX

2044

toc2

8

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

3000 3500

-40

-30

-20

-502500 4000

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2044

toc2

9

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

3000 3500

-40

-30

-20

-502500 4000

PLO = -3dBm

PLO = 0dBm

PLO = +3dBm


MAX

2044

toc3

0

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

3000 3500

-40

-30

-20

-502500 4000

VCC = 4.75V

VCC = 5.25V

VCC = 5.0V


MA

X2044

_______________________________________________________________________________________ _ 13


25

20

15

10

5

0

30

RF PORT RETURN LOSSvs. RF FREQUENCY

MAX

2044

toc3

1

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

38003600340032003000 4000


fIF = 300MHz

LO PORT RETURN LOSSvs. LO FREQUENCY

MAX

2044

toc3

3

LO FREQUENCY (MHz)

LO P

ORT

RETU

RN L

OSS

(dB)

3000 3500

20

10

0

302500 4000

PLO = +3dBm

PLO = -3dBm

PLO = 0dBm

25

20

15

10

5

0

30

IF PORT RETURN LOSSvs. IF FREQUENCY

MAX

2044

toc3

2

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

41032023014050 500

VCC = 4.75V, 5.0V, 5.25V

fLO = 3200MHz

SUPPLY CURRENTvs. TEMPERATURE (TC)

MAX

2044

toc3

4

TEMPERATURE (°C)

SUPP

LY C

URRE

NT (m

A)

125

130

135

140

145

150

120603510-15-40 85

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


MA

X20

44

14_ _ ______________________________________________________________________________________


CONVERSION LOSS vs. RF FREQUENCYM

AX20

44 to

c35

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

TC = -40°C

TC = +85°CTC = +25°C

VCC = 3.3V


MAX

2044

toc3

6

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000


VCC = 3.3V


MAX

2044

toc3

7

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

VCC = 3.0V, 3.3V, 3.6V


MAX

2044

toc3

8

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

26

28

30

32

34

243000 4000

TC = -40°CTC = +25°C

TC = +85°C

VCC = 3.3VPRF = 0dBm/TONE


AX20

44 to

c39

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

26

28

30

32

34

243000 4000


VCC = 3.3VPRF = 0dBm/TONE


MAX

2044

toc4

0

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

38003600340032003000 4000

VCC = 3.0VVCC = 3.3V

VCC = 3.6V

PRF = 0dBm/TONE

26

28

30

32

34

24


MAX

2044

toc4

1

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

503000 4000

TC = +85°C

TC = +25°CTC = -40°C

VCC = 3.3VPRF = 0dBm


MAX

2044

toc4

2

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

503000 4000

PLO = +3dBm

PLO = 0dBm

PLO = -3dBm



MAX

2044

toc4

3

RF FREQUENCY (MHz)

2RF

- 2LO

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

503000 4000


VCC = 3.0V

PRF = 0dBm


MA

X2044

_______________________________________________________________________________________ _ 15


3RF - 3LO RESPONSE vs. RF FREQUENCYM

AX20

44 to

c44

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

453000 4000

TC = +25°C

TC = -40°CTC = +85°C



MAX

2044

toc4

5

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

453000 4000




MAX

2044

toc4

6

RF FREQUENCY (MHz)

3RF

- 3LO

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

453000 4000

PRF = 0dBm

VCC = 3.0V

VCC = 3.6V

VCC = 3.3V


MAX

2044

toc4

7

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

6

7

8

9

10

11

538003600340032003000 4000

TC = +85°C

TC = +25°C

VCC = 3.3V

TC = -40°C

NOISE FIGURE vs. RF FREQUENCYM

AX20

44 to

c48

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

6

7

8

9

10

11

538003600340032003000 4000

PLO = -3dBmPLO = 0dBm

VCC = 3.3V

PLO = +3dBm


MAX

2044

toc4

9

RF FREQUENCY (MHz)

NOIS

E FI

GURE

(dB)

6

7

8

9

10

11

538003600340032003000 4000

VCC = 3.0V

VCC = 3.3V

VCC = 3.6V


MAX

2044

toc5

0

RF FREQUENCY (MHz)

INPU

T P 1

dB (d

Bm)

38003600340032003000 4000

TC = +85°C

TC = +25°C

TC = -40°C

VCC = 3.3V

17

19

21

23

15


MAX

2044

toc5

1

RF FREQUENCY (MHz)

INPU

T P 1

dB (d

Bm)

3800360034003200

17

19

21

23

153000 4000


VCC = 3.3V


MAX

2044

toc5

2

RF FREQUENCY (MHz)

INPU

T P 1

dB (d

Bm)

3800360034003200

17

19

21

23

153000 4000

VCC = 3.0V

VCC = 3.3V

VCC = 3.6V


MA

X20

44

16_ _ ______________________________________________________________________________________



MAX

2044

toc5

3

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

3500330031002900

-30

-20

-10

-402700 3700

TC = +85°C

TC = +25°CTC = -40°C

VCC = 3.3V


MAX

2044

toc5

4

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

3500330031002900

-30

-20

-10

-402700 3700


VCC = 3.3V


MAX

2044

toc5

5

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

3500330031002900

-30

-20

-10

-402700 3700

VCC = 3.0V, 3.3V, 3.6V


MAX

2044

toc5

6

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000

TC = -40°CTC = +25°C

TC = +85°C

VCC = 3.3V

RF-TO-IF ISOLATION vs. RF FREQUENCYM

AX20

44 to

c57

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000


VCC = 3.3V


MAX

2044

toc5

8

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000

VCC = 3.0V, 3.3V, 3.6V


MAX

2044

toc5

9

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3000 3500

-40

-30

-20

-502500 4000

TC = -40°C, +25°C, +85°C

VCC = 3.3V


MAX

2044

toc6

0

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3000 3500

-40

-30

-20

-502500 4000


VCC = 3.3V


MAX

2044

toc6

1

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3000 3500

-40

-30

-20

-502500 4000

VCC = 3.0V, 3.3V, 3.6V


MA

X2044

_______________________________________________________________________________________ _ 17



MAX

2044

toc6

2

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

35003000

-45

-35

-25

-15

-552500 4000

TC = -40°C

TC = +25°CTC = +85°C

VCC = 3.3V


MAX

2044

toc6

3

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

35003000

-45

-35

-25

-15

-552500 4000


VCC = 3.3V


MAX

2044

toc6

4

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

35003000

-45

-35

-25

-15

-552500 4000

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V

25

20

15

10

5

0

30


MAX

2044

toc6

5

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

38003600340032003000 4000


VCC = 3.3VfIF = 300MHz

25

20

15

10

5

0

30


MAX

2044

toc6

6

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

41032023014050 500

VCC = 3.0V, 3.3V, 3.6V

fLO = 3200MHz


MAX

2044

toc6

7

LO FREQUENCY (MHz)

LO P

ORT

RETU

RN L

OSS

(dB)

3000 3500

20

10

0

302500 4000

PLO = +3dBm

PLO = 0dBm

PLO = -3dBm

VCC = 3.3V

SUPPLY CURRENTvs.TEMPERATURE (TC)

MAX

2044

toc6

8

TEMPERATURE (°C)

SUPP

LY C

URRE

NT (m

A)

110

115

120

125

130

135

105603510-15-40 85

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V


MA

X20

44

18_ _ ______________________________________________________________________________________

典型工作特性(续)(Typical Application Circuit with tuning elements outlined in Table_ 1,_ Downconverter_ Mode,_ VCC_ =_ 5.0V,_ fRF_ =_ 2300MHz_ to_2900MHz,_LO_is_high-side_injected for a 300MHz IF, PRF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted.)


AX20

44 to

c69

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

275026002450

7

8

9

10

62300 2900

TC = +25°CTC = +85°C

TC = -40°C


MAX

2044

toc7

0

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

275026002450

7

8

9

10

62300 2900



MAX

2044

toc7

1

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

275026002450

7

8

9

10

62300 2900

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc7

2

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

275026002450

29

31

33

35

37

272300 2900

TC = +25°C

TC = -40°C

TC = +85°C

PRF = 0dBm/TONE


AX20

44 to

c73

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

275026002450

29

31

33

35

37

272300 2900

PLO = +3dBmPRF = 0dBm/TONE

PLO = -3dBm

PLO = 0dBm


MAX

2044

toc7

4

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

275026002450

29

31

33

35

37

272300 2900

PRF = 0dBm/TONE

VCC = 5.25V

VCC = 4.75V

VCC = 5.0V

2LO - 2RF RESPONSEvs. RF FREQUENCY

MAX

2044

toc7

5

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

275026002450

60

70

80

502300 2900

PRF = 0dBm

TC = +85°C

TC = -40°C

TC = +25°C


MAX

2044

toc7

6

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

275026002450

60

70

80

502300 2900

PRF = 0dBm

PLO = +3dBm

PLO = -3dBm

PLO = 0dBm


MAX

2044

toc7

7

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

275026002450

60

70

80

502300 2900

PRF = 0dBm

VCC = 4.75V

VCC = 5.25V

VCC = 5.0V


MA

X2044

_______________________________________________________________________________________ _ 19



MAX

2044

toc7

8

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

275026002450

65

75

85

552300 2900

PRF = 0dBm

TC = +85°C

TC = +25°C

TC = -40°C


MAX

2044

toc7

9

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

275026002450

65

75

85

552300 2900

PRF = 0dBm

PLO = +3dBm

PLO = 0dBm PLO = -3dBm


MAX

2044

toc8

0

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

275026002450

65

75

85

552300 2900

PRF = 0dBm

VCC = 5.25V

VCC = 4.75VVCC = 5.0V

LO LEAKAGE AT IF PORT vs. LO FREQUENCY

MAX

2044

toc8

1

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

305029002750

-35

-30

-25

-20

-402600 3200

TC = +25°C

TC = +85°C

TC = -40°C


MAX

2044

toc8

2

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

305029002750

-35

-30

-25

-20

-402600 3200



MAX

2044

toc8

3

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

305029002750

-35

-30

-25

-20

-402600 3200

VCC = 5.0V

VCC = 4.75V

VCC = 5.25V


MAX

2044

toc8

4

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

275026002450

30

40

50

60

202300 2900

TC = +85°CTC = +25°C

TC = -40°C


MAX

2044

toc8

5

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

275026002450

30

40

50

60

202300 2900



MAX

2044

toc8

6

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

275026002450

30

40

50

60

202300 2900

VCC = 4.75V, 5.0V, 5.25V


MA

X20

44

20_ _ ______________________________________________________________________________________



MAX

2044

toc8

7

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

357531502725

-40

-30

-20

-502300 4000

TC = +85°C

TC = +25°CTC = -40°C


MAX

2044

toc8

8

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

357531502725

-40

-30

-20

-502300 4000



MAX

2044

toc8

9

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

357531502725

-40

-30

-20

-502300 4000

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc9

0

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

357531502725

-50

-40

-30

-20

-602300 4000

TC = +25°CTC = -40°C

TC = +85°C


MAX

2044

toc9

1

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

357531502725

-50

-40

-30

-20

-602300 4000

PLO = 0dBmPLO = +3dBm

PLO = -3dBm


MAX

2044

toc9

2

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

357531502725

-50

-40

-30

-20

-602300 4000

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


MA

X2044

_______________________________________________________________________________________ _ 21



MAX

2044

toc9

3

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

275026002450

25

20

15

10

5

0

302300 2900


fIF = 300MHz

IF PORT RETURN LOSS vs. IF FREQUENCY

MAX

2044

toc9

4

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

fLO = 2600MHz fLO = 2900MHz

fLO = 3200MHz

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc9

5

LO FREQUENCY (MHz)

LO P

ORT

RETU

RN L

OSS

(dB)

35003000

30

20

10

0

402500 4000

PLO = -3dBm

PLO = +3dBmPLO = 0dBm


MAX

2044

toc9

6

TEMPERATURE (°C)

SUPP

LY C

URRE

NT (m

A)

603510-15

125

130

135

140

145

150

120-40 85

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


MA

X20

44

22_ _ ______________________________________________________________________________________



MAX

2044

toc1

00

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

29

31

33

35

37

273000 4000

TC = -40°C

TC = +85°C

TC = +25°C

PRF = 0dBm/TONE


AX20

44 to

c101

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

29

31

33

35

37

273000 4000

PRF = 0dBm/TONE

PLO = +3dBm

PLO = -3dBmPLO = 0dBm


MAX

2044

toc1

02

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

29

31

33

35

37

273000 4000

PRF = 0dBm/TONE

VCC = 5.0VVCC = 5.25V

VCC = 4.75V


MAX

2044

toc1

03

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

503000 4000

TC = +85°C

TC = -40°C TC = +25°C

PRF = 0dBm


MAX

2044

toc1

04

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

503000 4000

PLO = +3dBm

PLO = -3dBm

PLO = 0dBm

PRF = 0dBm


MAX

2044

toc1

05

RF FREQUENCY (MHz)

2LO

- 2RF

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

503000 4000

PRF = 0dBm

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


AX20

44 to

c97

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

TC = +85°CTC = +25°C

TC = -40°C


MAX

2044

toc9

8

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000



MAX

2044

toc9

9

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

VCC = 4.75V, 5.0V, 5.25V

MA

X2044

_______________________________________________________________________________________ _ 23




MAX

2044

toc1

06

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

3800360034003200

65

75

85

553000 4000

PRF = 0dBm

TC = -40°C

TC = +85°CTC = +25°C


MAX

2044

toc1

07

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

3800360034003200

65

75

85

553000 4000

PRF = 0dBm


PLO = -3dBm


MAX

2044

toc1

08

RF FREQUENCY (MHz)

3LO

- 3RF

RES

PONS

E (d

Bc)

3800360034003200

65

75

85

553000 4000

PRF = 0dBm

VCC = 5.0VVCC = 5.25V

VCC = 4.75V


MAX

2044

toc1

09

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

4100390037003500

-30

-20

-10

-403300 4300

TC = -40°C

TC = +85°CTC = +25°C


MAX

2044

toc1

10

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

4100390037003500

-30

-20

-10

-403300 4300



MAX

2044

toc1

11

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T IF

POR

T (d

Bm)

4100390037003500

-30

-20

-10

-403300 4300

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc1

12

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000

TC = +25°C, +85°C

TC = -40°C


MAX

2044

toc1

13

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000



MAX

2044

toc1

14

RF FREQUENCY (MHz)

RF-T

O-IF

ISOL

ATIO

N (d

B)

3800360034003200

30

40

50

60

203000 4000

VCC = 4.75V, 5.0V, 5.25V


MA

X20

44

24_ _ ______________________________________________________________________________________



MAX

2044

toc1

15

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3500 4000

-40

-30

-20

-503000 4500

TC = +85°C

TC = +25°CTC = -40°C


MAX

2044

toc1

16

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3500 4000

-40

-30

-20

-503000 4500



MAX

2044

toc1

17

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3500 4000

-40

-30

-20

-503000 4500

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc1

18

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

38003400

-40

-30

-20

-10

-503000 4200

TC = -40°C

TC = +25°C

TC = +85°C


MAX

2044

toc1

19

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

38003400

-40

-30

-20

-10

-503000 4200

PLO = 0dBm

PLO = +3dBm

PLO = -3dBm


MAX

2044

toc1

20

LO FREQUENCY (MHz)

2LO

LEAK

AGE

AT R

F PO

RT (d

Bm)

38003400

-40

-30

-20

-10

-503000 4200

VCC = 4.75V

VCC = 5.25V

VCC = 5.0V


MA

X2044

_______________________________________________________________________________________ _ 25



MAX

2044

toc1

21

RF FREQUENCY (MHz)

RF P

ORT

RETU

RN L

OSS

(dB)

3800360034003200

25

20

15

10

5

0

303000 4000

fIF = 300MHz



MAX

2044

toc1

22

IF FREQUENCY (MHz)

IF P

ORT

RETU

RN L

OSS

(dB)

410320230140

25

20

15

10

5

0

3050 500

fLO = 3800MHz

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc1

23

LO FREQUENCY (MHz)

LO P

ORT

RETU

RN L

OSS

(dB)

40003500

40

30

20

10

0

503000 4500

PLO = -3dBm

PLO = +3dBm

PLO = 0dBm


MAX

2044

toc1

24

TEMPERATURE (°C)

SUPP

LY C

URRE

NT (m

A)

603510-15

125

130

135

140

145

150

120-40 85

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


MA

X20

44

26_ _ ______________________________________________________________________________________

典型工作特性(续)(Typical Application Circuit with tuning elements outlined in Table_2,_Upconverter_Mode,_VCC_=_5.0V,_fRF_=_3000MHz_to_4000MHz,_LO_is_low-side_injected,_fIF = 200MHz, PIF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted.)


AX20

44 to

c125

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

TC = +85°C TC = +25°C

TC = -40°C


MAX

2044

toc1

26

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000



MAX

2044

toc1

27

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc1

28

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

30

32

34

36

283000 4000

TC = -40°C

PIF = 0dBm/TONE

TC = +25°C

TC = +85°C


AX20

44 to

c129

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

30

32

34

36

283000 4000

PLO = +3dBm

PLO = 0dBmPLO = -3dBm

PIF = 0dBm/TONE


MAX

2044

toc1

30

RF FREQUENCY (MHz)

INPU

T IP

3 (d

Bm)

3800360034003200

30

32

34

36

283000 4000

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

PIF = 0dBm/TONE

LO - 2IF RESPONSE vs. RF FREQUENCY

MAX

2044

toc1

31

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBm

TC = +85°CTC = +25°C

TC = -40°C


MAX

2044

toc1

32

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBm

PLO = +3dBm

PLO = 0dBm

PLO = -3dBm


MAX

2044

toc1

33

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBm

VCC = 5.0V

VCC = 5.25V

VCC = 4.75V


MA

X2044

_______________________________________________________________________________________ _ 27


LO + 2IF RESPONSE vs. RF FREQUENCYM

AX20

44 to

c134

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBm

TC = +85°CTC = +25°C

TC = -40°C

LO + 2IF RESPONSE vs. RF FREQUENCY

MAX

2044

toc1

35

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBm

PLO = +3dBmPLO = 0dBm

PLO = -3dBm


MAX

2044

toc1

36

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBmVCC = 5.0V

VCC = 4.75V

VCC = 5.25V


MAX

2044

toc1

37

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

3800360034003200

70

80

90

100

603000 4000

PIF = 0dBm

TC = +85°C

TC = -40°C

TC = +25°C

LO - 3IF RESPONSE vs. RF FREQUENCYM

AX20

44 to

c138

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

3800360034003200

70

80

90

100

603000 4000

PIF = 0dBm



MAX

2044

toc1

39

RF FREQUENCY (MHz)

LO -

3IF

RESP

ONSE

(dBc

)

3800360034003200

70

80

90

100

603000 4000

PIF = 0dBm

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc1

40

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

3800360034003200

70

80

90

100

603000 4000

PIF = 0dBm

TC = +85°C

TC = -40°C

TC = +25°C


MAX

2044

toc1

41

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

3800360034003200

70

80

90

100

603000 4000

PIF = 0dBm



MAX

2044

toc1

42

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

3800360034003200

70

80

90

100

603000 4000

PIF = 0dBm

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V


MA

X20

44

28_ _ ______________________________________________________________________________________



MAX

2044

toc1

43

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-35

-30

-25

-20

-402800 3800

TC = -40°C

TC = +85°C TC = +25°C


MAX

2044

toc1

44

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-35

-30

-25

-20

-402800 3800



MAX

2044

toc1

45

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-35

-30

-25

-20

-402800 3800

VCC = 4.75V, 5.0V, 5.25V

IF LEAKAGE AT RF PORT vs. LO FREQUENCY

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-90

-80

-70

-60

-50

-100

MAX

2044

toc1

46

LO FREQUENCY (MHz)

36003400320030002800 3800

TC = -40°C

TC = +85°C

TC = +25°C


IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-90

-80

-70

-60

-50

-100

MAX

2044

toc1

47

LO FREQUENCY (MHz)

36003400320030002800 3800

PLO = +3dBm

PLO = 0dBm

PLO = -3dBm


IF L

EAKA

GE A

T RF

POR

T (d

Bm)

-90

-80

-70

-60

-50

-100

MAX

2044

toc1

48

LO FREQUENCY (MHz)

36003400320030002800 3800

VCC = 5.25V

VCC = 4.75VVCC = 5.0V


MA

X2044

_______________________________________________________________________________________ _ 29


RF PORT RETURN LOSS vs. RF FREQUENCY

MAX

2044

toc1

49

RF P

ORT

RETU

RN L

OSS

(dB)

25

20

15

10

5

0

30

RF FREQUENCY (MHz)

38003600340032003000 4000


fIF = 200MHz


MAX

2044

toc1

50

IF P

ORT

RETU

RN L

OSS

(dB)

25

20

15

10

5

0

30

IF FREQUENCY (MHz)

41032023014050 500

fLO = 3200MHz

VCC = 4.75V, 5.0V, 5.25V


MAX

2044

toc1

51

LO FREQUENCY (MHz)

LO P

ORT

RETU

RN L

OSS

(dB)

35003000

25

20

15

10

5

0

302500 4000

PLO = 0dBm

PLO = -3dBm

PLO = +3dBm


MAX

2044

toc1

52

SUPP

LY C

URRE

NT (m

A)

125

130

135

140

145

150

120

TEMPERATURE (°C)

603510-15-40 85

VCC = 5.25V VCC = 5.0V

VCC = 4.75V


MA

X20

44

30_ _ ______________________________________________________________________________________

典型工作特性(续)(Typical Application Circuit with tuning elements outlined in Table_2,_Upconverter_Mode,_VCC_=_3.3V,_fRF_=_3000MHz_to_4000MHz,_LO_is_low-side_injected, fIF = 200MHz, PIF = 0dBm, PLO = 0dBm, TC = +25NC, unless otherwise noted.)


AX20

44 to

c153

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

TC = +85°CTC = +25°C

TC = -40°C

VCC = 3.3V


MAX

2044

toc1

54

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

VCC = 3.3V



MAX

2044

toc1

55

RF FREQUENCY (MHz)

CONV

ERSI

ON L

OSS

(dB)

3800360034003200

7

8

9

10

63000 4000

VCC = 3.0V, 3.3V, 3.6V


INPU

T IP

3 (d

Bm)

26

28

30

32

34

24

MAX

2044

toc1

56

RF FREQUENCY (MHz)

38003600340032003000 4000

VCC = 3.3VPIF = 0dBm/TONE

TC = -40°C

TC = +25°CTC = +85°C


INPU

T IP

3 (d

Bm)

26

28

30

32

34

24

MAX

2044

toc1

57

RF FREQUENCY (MHz)

38003600340032003000 4000

VCC = 3.3VPIF = 0dBm/TONE



INPU

T IP

3 (d

Bm)

26

28

30

32

34

24

MAX

2044

toc1

58

RF FREQUENCY (MHz)

38003600340032003000 4000

PIF = 0dBm/TONE

VCC = 3.6V

VCC = 3.0V

VCC = 3.3V


MAX

2044

toc1

59

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

3800360034003200

55

65

75

85

453000 4000

TC = +25°C

TC = -40°C

VCC = 3.3VPIF = 0dBm

TC = +85°C


MAX

2044

toc1

60

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

3800360034003200

55

65

75

85

453000 4000


PLO = +3dBm

PLO = 0dBmPLO = -3dBm


MAX

2044

toc1

61

RF FREQUENCY (MHz)

LO -

2IF

RESP

ONSE

(dBc

)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBm

VCC = 3.0V

VCC = 3.6V

VCC = 3.3V


MA

X2044

_______________________________________________________________________________________ _ 31


LO + 2IF RESPONSE vs. RF FREQUENCYM

AX20

44 to

c162

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

85

453000 4000


TC = +85°C

TC = +25°C

TC = -40°C


MAX

2044

toc1

63

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

85

453000 4000


PLO = +3dBm

PLO = -3dBm

PLO = 0dBm


MAX

2044

toc1

64

RF FREQUENCY (MHz)

LO +

2IF

RES

PONS

E (d

Bc)

3800360034003200

55

65

75

85

453000 4000

PIF = 0dBm

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V


MAX

2044

toc1

65

LO -

3IF

RESP

ONSE

(dBc

)

60

70

80

50

RF FREQUENCY (MHz)

38003600340032003000 4000


TC = +85°C

TC = +25°C

TC = -40°C

LO - 3IF RESPONSE vs. RF FREQUENCYM

AX20

44 to

c166

LO -

3IF

RESP

ONSE

(dBc

)

60

70

80

50

RF FREQUENCY (MHz)

38003600340032003000 4000




MAX

2044

toc1

67

LO -

3IF

RESP

ONSE

(dBc

)

60

70

80

50

RF FREQUENCY (MHz)

38003600340032003000 4000

PIF = 0dBmVCC = 3.6V

VCC = 3.0V

VCC = 3.3V


MAX

2044

toc1

68

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

90

503000 4000

TC = -40°C

TC = +25°C

TC = +85°C



MAX

2044

toc1

69

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

90

503000 4000




MAX

2044

toc1

70

RF FREQUENCY (MHz)

LO +

3IF

RES

PONS

E (d

Bc)

3800360034003200

60

70

80

90

503000 4000

PIF = 0dBm

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V


MA

X20

44

32_ _ ______________________________________________________________________________________



MAX

2044

toc1

71

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-35

-30

-25

-20

-402800 3800

VCC = 3.3V

TC = +85°C

TC = +25°CTC = -40°C


MAX

2044

toc1

72

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-35

-30

-25

-20

-402800 3800

VCC = 3.3V



MAX

2044

toc1

73

LO FREQUENCY (MHz)

LO L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-35

-30

-25

-20

-402800 3800

VCC = 3.0V, 3.3V, 3.6V


MAX

2044

toc1

74

LO FREQUENCY (MHz)

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-90

-80

-70

-60

-1002800 3800

VCC = 3.3V

TC = -40°C

TC = +25°C TC = +85°C


MAX

2044

toc1

75

LO FREQUENCY (MHz)

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-90

-80

-70

-60

-1002800 3800

VCC = 3.3V

PLO = -3dBm

PLO = 0dBm

PLO = +3dBm


MAX

2044

toc1

76

LO FREQUENCY (MHz)

IF L

EAKA

GE A

T RF

POR

T (d

Bm)

3600340032003000

-90

-80

-70

-60

-1002800 3800

VCC = 3.0V



MA

X2044

_______________________________________________________________________________________ _ 33


RF PORT RETURN LOSS vs. RF FREQUENCY

MAX

2044

toc1

77

RF P

ORT

RETU

RN L

OSS

(dB)

25

20

15

10

5

0

30

RF FREQUENCY (MHz)

38003600340032003000 4000


VCC = 3.3VfIF = 200MHz


MAX

2044

toc1

78

IF P

ORT

RETU

RN L

OSS

(dB)

25

20

15

10

5

0

30

IF FREQUENCY (MHz)

41032023014050 500

fLO = 3200MHz

VCC = 3.0V, 3.3V, 3.6V


MAX

2044

toc1

79

LO FREQUENCY (MHz)

LO P

ORT

RETU

RN L

OSS

(dB)

35003000

25

20

15

10

5

0

302500 4000

PLO = -3dBm


VCC = 3.3V


MAX

2044

toc1

80

SUPP

LY C

URRE

NT (m

A)

110

115

120

125

130

135

105

TEMPERATURE (°C)

603510-15-40 85


VCC = 3.0V


MA

X20

44

34_ _ ______________________________________________________________________________________

引脚配置/功能框图

引脚说明

MAX2044

TOP VIEW

+

11

12

13

14

15

5

4

3

2

1

*EXPOSED PAD

LOBI

AS

GND

GND

V CC

6 7 8 9 10

1617181920

V CC

RF

GND

GND

VCC

GND

IF+

IF-

GND

GND

GND

VCC

GND

GND

LO

GND

EP*

引脚名称功能

1, 6, 8, 14 VCC 电源。使用0.01μF电容旁路至GND，电容应尽可能靠近引脚放置。

2 RF 单端50ΩRF输入/输出端。该端口由内部匹配，并通过非平衡变压器直流短接到GND，必要时在输入端连接隔直流电容。

3, 9, 13, 15 GND 地。内部没有连接，这些引脚可以接地。

4, 5, 10, 12, 17

GND 地。内部连接至裸焊盘(EP)，将所有地引脚与裸焊盘连接在一起。

7 LOBIAS LO输出偏置电阻，用于LO缓冲器。在LOBIAS与地之间连接一个698Ω的1%精度电阻(偏置在138mA)。

11 LO 本振输入。该输入端在内部匹配为50Ω，需要一个输入隔直流电容。

16, 20 GND 地，将这些引脚接地。

18, 19 IF-, IF+ 混频器差分IF输出/输入端。必要时提供隔直流电容，这些端口由内部偏置在VCC/2。

— EP 裸焊盘。内部连接至GND，使用多个接地过孔将该裸焊盘焊接到一个PCB焊盘，为器件与PCB地层之间提供良好的散热通道。多个接地过孔还有助于改善RF性能。


MA

X2044

_______________________________________________________________________________________ _ 35

详细说明MAX2044为高线性度无源混频器，设计用于2.5GHz和3.5GHz无线基础架构。2600MHz至4300MHz超宽范围的LO频率，能够使MAX2044用于低端和高端LO注入架构，支持所有WiMAX、LTE和MMDS接收、发送应用。

在3000MHz至4000MHz频段用作低端LO注入的下变频混频器时，MAX2044可提供+32.5dBm的输入IP3，变换损耗和噪声系数典型值仅为7.7dB和8.5dB。集成的非平衡变压器和匹配电路允许50Ω单端连接至RF端口和LO端口。集成LO缓冲器可以为混频器核提供较强的驱动能力，将MAX2044输入端所需的LO驱动减小到-3dBm至+3dBm。IF端口配合差分输出端，有效改善了2RF-2LO或2LO-2RF性能。

该器件可在较宽的频率范围内保证性能，适用于WiMAX、LTE和MMDS基站。MAX2044能够工作在2300MHz至4000MHzRF输入范围、2600MHz至4300MHzLO范围以及50MHz至500MHzIF范围，也可以工作在上述频率范围以外(详细信息请参见典型工作特性)。

RF输入和非平衡变压器配合隔直流电容使用时，MAX2044的RF输入提供50Ω匹配。由于输入端在内部通过片上非平衡变压器直流短路到

地，所以必须使用隔直流电容。使用8.2pF隔直流电容时，在整个3300MHz至3900MHzRF频率范围内，RF端口的输入回波损耗典型值优于13dB。按照表1和表2所示更换输入匹配元件，在2400MHz至2700MHz频率范围内，回波损耗可以达到15dB。可以选择C1、C12的其它组合形式，优化2300MHz至4000MHz频率范围内的RF回波损耗。

LO输入、缓冲器和非平衡变压器利用2600MHz至4300MHz较宽频率的LO驱动电路，MAX2044可以用于低端或高端LO注入架构，支持所有2.5GHz和3.5GHz应用。LO输入在内部匹配为50Ω，只需

一个2pF的隔直电容。两级内部LO缓冲器允许-3dBm至+3dBm的LO输入功率范围。片上低损耗非平衡变压器和LO缓冲器配合使用，驱动双平衡混频器。LO输入端与IF输出端之间的所有接口和匹配元件均已集成在芯片内。

高线性度混频器

MAX2044的核心是一个双平衡、高性能无源混频器。片上LO缓冲器具有较大的LO摆幅，可提供优异的线性度指标。IIP3、2RF-2LO抑制和噪声系数的典型值分别为+32.5dBm、68dBc和8.5dB。

差分IF输出MAX2044具有50MHz至500MHz的IF频率范围，其低端频率取决于外部IF元件的频率响应。

MAX2044的差分端口能够增强2RF-2LO和2LO-2RF性能，单端IF应用需要一个1:1(阻抗比)的非平衡变压器，将50Ω的差分IF电阻转换成50Ω单端输出。针对该器件特性选用MABAES00291:1变压器，数据资料的参数规格中给出了其损耗指标。用户可以在混频器的IF端口使用差分IF放大器或SAW滤波器，但IF+/IF-端口需要隔直流，以防止外部直流进入混频器的IF端口。由于IF+和IF-端由内部偏置在VCC/2，需要连接C4和C7隔直流电容。

应用信息

输入和输出匹配

配合隔直流电容使用时，RF输入提供50Ω匹配。在3000MHz至4000MHzRF频率范围内，使用8.2pF隔直流电容；工作在2300MHz至3000MHzRF频率范围时，请参考表1和表2替换元件，以实现优异的匹配性能。LO输入内部匹配在50Ω，使用2pF隔直流电容可覆盖2600MHz至4300MHz工作频率范围。IF输出阻抗为50Ω(差分)。为方便评估，通过外部低损耗1:1(阻抗比)非平衡变压器将该阻抗转化成50Ω单端输出(参见典型应用电路)。


MA

X20

44

36_ _ ______________________________________________________________________________________

降低功耗模式

MAX2044提供一个引脚(LOBIAS)，允许通过外部电阻设置内部偏置电流。电阻的标称值如表1和表2所示。增大电阻值可降低功耗，但代价是性能有所下降。如果没有±1%精度的电阻，可以采用±5%的电阻替代。

选择3.3V为混频器供电也可以显著降低功耗，这种方式可以将整体功耗降低42%(典型值)，请参考3.3VSupplyACElectricalCharacteristics表和典型工作特性中与3.3V供电相关的特性曲线，以折中考虑功耗和性能。

布局考虑

合理的PCB设计是任何RF/微波电路的一个重要部分。RF信号线应尽可能短，以减小损耗、辐射和电感。混频器的负载

阻抗必须保证IF-、IF+与地之间的电容不会超出几个皮法。为获得最佳性能，接地引脚须直接与封装底部的裸焊盘连

接。PCB上的裸焊盘必须连接至PCB的地层。建议采用多个过孔将该焊盘连接至地层。这种方法能为器件提供一个良

好的RF/散热路径。将器件封装底部的裸焊盘焊接至PCB。

电源旁路

合理的电源旁路对高频电路的稳定性至关重要。如典型应

用电路所示，对各VCC引脚使用电容旁路，元件值参见表1。

表1. 下变频模式元件值DESIGNATION QTY DESCRIPTION COMPONENT_SUPPLIER

C1 1

3.3nH microwave inductor (0402). Use for RF frequencies ranging from 2300MHz_to_3000MHz.

Coilcraft, Inc.

8.2pF microwave capacitor (0402). Use for RF frequencies ranging from 3000MHz_to_4000MHz.

Murata Electronics North America, Inc.

C2, C6, C8, C11 4 0.01FF microwave capacitors (0402) Murata Electronics North America, Inc.

C3, C9 0 Not installed, microwave capacitors (0402) —

C4, C7 2 470pF microwave capacitors (0402) Murata Electronics North America, Inc.

C5 0 Not installed, microwave capacitor (0402) —

C10 1 2pF microwave capacitor (0402) Murata Electronics North America, Inc.

C12



0Microwave capacitor (0402) not installed for RF frequencies ranging from 3000MHz_to_4000MHz.

—

R1 1

698I ±1% resistor (0402). Use for VCC_=_+5.0V_applications.

Digi-Key Corp.


Digi-Key Corp.

T1 1 1:1 IF balun MABAES0029 M/A-Com

U1 1 MAX2044 IC (20 TQFN) Maxim Integrated Products, Inc.


MA

X2044

_______________________________________________________________________________________ _ 37

表2. 上变频模式元件值

裸焊盘的RF/散热考虑MAX2044采用20引脚、薄型QFN封装，其裸焊盘(EP)提供了一个与管芯之间的低热阻通路。在安装MAX2044的

PCB与EP之间保持良好的热传递通道非常重要。此外，EP应通过一个低电感路径接地。EP必须直接或通过一系列电镀过孔焊接至PCB的地层。

DESIGNATION QTY DESCRIPTION COMPONENT_SUPPLIER

C1 1

3.3nH microwave inductor (0402). Use for RF frequencies ranging from 2300MHz_to_3000MHz.

Coilcraft, Inc.



C2, C6, C8, C11 4 0.01FF microwave capacitors (0402) Murata Electronics North America, Inc.

C3, C9 0 Not installed, microwave capacitors (0402) —

C4, C7 2 470pF microwave capacitors (0402) Murata Electronics North America, Inc.

C5 0 Not installed, microwave capacitor (0402) —

C10 1 2pF microwave capacitor (0402) Murata Electronics North America, Inc.

C12



0Microwave capacitor (0402) not installed for RF frequencies ranging from 3000MHz_to_4000MHz.

—

R1 1


Digi-Key Corp.


Digi-Key Corp.

T1 1 1:1 IF balun MABAES0029 M/A-Com

U1 1 MAX2044 IC (20 TQFN) Maxim Integrated Products, Inc.


MA

X20

44

38_ _ ______________________________________________________________________________________

典型应用电路

NOTE: PINS 4, 5, 10, 12, AND 17 ARE ALL INTERNALLYCONNECTED TO THE EXPOSED GROUND PAD. CONNECTTHESE PINS TO GROUND TO IMPROVE ISOLATION.

PINS 3, 9, 13, AND 15 HAVE NO INTERNAL CONNECTION, BUT CAN BEEXTERNALLY GROUNDED TO IMPROVE ISOLATION.

*C12 NOT USED FOR 3000MHz TO 4000MHz APPLICATIONS.

1920 18 17

76 8

RF

GND

GND

9

VCC1

2

4

5

15

14

12

11

LOBI

AS V CC

V CC

GND

GND

GND3 13

16

10

VCC

GND

GND

LO

GND

IF+

IF-

GND

GND

GND

R1

C10

C8

C9

C11

LOINPUT

C6

C1

RF

VCC

VCC

1:1

C5

C4 C7

IF

T1

5

41

2N.C.

3

C3 C2

VCC

C12*

MAX2044

EP

U1


MA

X2044

芯片信息

PROCESS: SiGe BiCMOS

封装信息如需最近的封装外形信息和焊盘布局，请查询china.maxim-ic.com/packages。请注意，封装编码中的“+”、“#”或“-”仅表示RoHS状态。封装图中可能包含不同的尾缀字符，但封装图只与封装有关，

与RoHS状态无关。

封装类型封装编码文档编号

20 TQFN-EP T2055+3 21-0140

Maxim不对Maxim产品以外的任何电路使用负责，也不提供其专利许可。Maxim保留在任何时间、没有任何通报的前提下修改产品资料和规格的权利。

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 39

©2009MaximIntegratedProducts Maxim是MaximIntegratedProducts,Inc.的注册商标。

Maxim北京办事处北京8328信箱邮政编码100083免费电话：800 810 0310电话：010-6211 5199传真：010-6211 5299

http://china.maxim-ic.com/packages

http://china.maxim-ic.com/packages

http://pdfserv.maxim-ic.com/package_dwgs/21-0140.PDF

SiGe、高线性度、2300MHz 4000MHz 上变频下变频混频器，带有 · 2010-02-24 ·...

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Transcript of SiGe、高线性度、2300MHz 4000MHz 上变频下变频混频器，带有 · 2010-02-24 ·...

SiGe、高线性度、2300MHz 4000MHz 上变频 下变频混频器，带有 · 2010-02-24 ·...

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Transcript of SiGe、高线性度、2300MHz 4000MHz 上变频 下变频混频器，带有 · 2010-02-24 ·...

SiGe、高线性度、2300MHz 4000MHz 上变频下变频混频器，带有 · 2010-02-24 ·...

Transcript of SiGe、高线性度、2300MHz 4000MHz 上变频下变频混频器，带有 · 2010-02-24 ·...