Click aation it aates - Maxim Integrated · FILE DECRIPTION MAX3523 Programmable Gain Amplifier EV...

MAX3523 Evaluation Kit Evaluates: MAX3523

Ordering Information appears at end of data sheet.

319-100272; Rev 0; 10/18

General DescriptionThe MAX3523 evaluation kit (EV kit) provides the hardware and software graphical user interface (GUI) necessary to evaluate the MAX3523 low-power DOCSIS 3.1 programmable-gain amplifier. The EV kit includes a MAX3523 installed EV board, as well as a micro-USB cable to communicate with a PC.

Features ● Easy Evaluation of the MAX3523 ● USB-3-Wire Serial Programmable Interface (SPI) ● PC, Laptop, or Tablet with Windows® 7 and 10

Compatible Software ● Proven PCB Layout ● Fully Assembled and Tested

Quick StartRequired Equipment

● One power supply capable of supplying at least 1000 mA at +5V.

● One RF signal generator capable of delivering at least -10dBm of output power up to 204 MHz frequency.

● One RF spectrum analyzer capable of covering the operating frequency range of the device.

● One Windows PC with USB jack. ● 50Ω SMA cables, quantity = 2 ● (Optional) One network analyzer to measure return

loss. ● (Optional) One ammeter to measure supply current. ● MAX3523 EV kit GUI installation package: SetupPGA

EvKit_5.X.XXXXXXXX.0_Win7.msi.

FILE DECRIPTIONMAX3523 Programmable Gain Amplifier EV Kit Software Application program

Windows is a registered trademark and registered service mark of Microsoft Corporation.

MAX3523 EV Kit Files

Click here for production status of specific part numbers.

https://www.maximintegrated.com/en/storefront/storefront.html

Maxim Integrated │ 2


www.maximintegrated.com

ProcedureSoftware / Driver preparation1) EV Kit GUI Installation: double-click SetupPGA_

EvKit_5.X.XXXXXX.0_Win7.msi. After successful installation, DeviceStudio5.exe should be created at desktop.

2) USB driver installation: connect EV kit micro-USB port to Windows PC USB port. When first connecting the EV kit, Windows will automatically search/install the

USB driver. It could take few minutes. In the rare case that Windows fails to find the driver, please contact Maxim support for assistant.

3) Check USB driver installation status: if Windows successfully installs the USB driver, a new device called “Teensy USB Serial” should appear in the Windows Device Manager (Figure 1).

Figure 1. USB Driver Installation Status




4) Check GUI/EV Kit communication status: Launch DeviceStudio5.exe, and DeviceStudio will automatically search for the connected MAXIM EV kit. After few seconds, MAX3523 should appear in device list (Figure 2).

Figure 2. MX3523 EV Kit GUI, Successful Connection




5) In rare case DeviceStudio fails to find MAX3523 EV Kit, push the reset button (see Figure 4), hold for 2 seconds, and release. Then click the Scan button at DeviceStudio (see Figure 3).

Figure 3. MX3523 EV Kit GUI, Unsuccessful Connection




Setup Procedure:1) With its output disabled, set the DC power supply to

+5V. If available, set the power supply’s current limit to 1000mA. Connect the power supply to the +5V (through an ammeter if desired) and GND terminals on the EV kit, as shown in Figure 5.

2) With its output disabled, set the RF signal generator to 85MHz and a power level of -32.5dBm. Connect the signal generator to the SMA J1 RF IN on the evaluation board, as shown in Figure 5.

3) Connect the SMA labeled J2 RFOUT on the evaluation board to a spectrum analyzer and set spectrum analyzer center frequency to 85MHz.

4) Connect the EV kit’s micro-USB port to the Windows PC USB port.

5) Turn on the +5V power supply.6) If the EV kit GUI is currently running, close it and

relaunch (DeviceStudio5.exe), after few seconds, the MAX3523 should appear in device list.

7) Double-click PGA section at DeviceStudio to launch MAX3523 GUI. (Figure 2)

8) MAX3523 GUI should be launched, as shown Figure 6. Click “set Default”

9) Toggle the TX_ENABLE switch at MAX3523 GUI. The MX3523 will be powered-up in default mode (GainCode = 63, PC = 3).

10) The supply current from the +5V supply should read approximately 700 mA. Be sure to adjust the power supply to account for any voltage drop across the power supply cable.

11) Enable the RF signal generator’s output.12) Check the output level on the spectrum analyzer.

With -32.5dbm at input, the expected output power level is about 0 dBm, which implies the EV kit board gain is 32.5dB, correct it by adding 4.5dB (board loss, detailed explanation is below), the MAX3523 voltage gain is 37 (32.5 + 4.5)dB.

Figure 4. MAX3523 EV Kit USB Communication




Figure 5. MAX3523 EV Kit Connection




Gain Correction factor explanationInput balun T3 transforms the 50Ω test equipment impedance to 100Ω MAX3523 input impedance, with a voltage gain of 3dB.Output minimum loss pad (R5/R6) transforms the 75Ω output impedance to 50Ω test equipment impedance, with a voltage “Gain” of -7.5dB.MAX3523 Voltage Gain = VOUT @ last matching

component (C9) – VIN @ MAX3523 In±

= (SMAOUT- MLP “gain”) – (SMAIN + T3 Gain)

= (SMAOUT-SMAIN) - (-7.5) - 3= EVK Gain + 4.5

Figure 6. MX3523 EV Kit GUI




#Denotes RoHS compliant.

Note: Indicate that you are using the MAX3523 when contacting these component suppliers.

PART TYPEMAX3523EVKIT# EV Kit

SUPPLIER WEBSITEMURATA https://www.murata.com/LAIRD https://www.lairdtech.com/

Component Suppliers Ordering Information




COMPONENT DESCRIPTION VALUE / PART NUMBER SUPPLIER

Components in TYP operation Circuit

B1, B2 FERRITE-BEAD, 600 BLM21AG601SN1D MURATA

C2, C5, C7 CAPACITOR; SMT (0603) 0.01 uF

C4 CAPACITOR; SMT (0402) 2.7 pF

C8 CAPACITOR; SMT (0402) 3.9 pF

C14 CAPACITOR; SMT (0402) 1000pF

L1 FERRITE-BEAD, 1K MI0805J102R-10 LAIRD

L2 INDUCTOR; SMT (0402) 5.1 nH

R1, R12 RESISTOR; SMT (0603) 100 Ohm

R3 RESISTOR; (0402) 1% 6.2 Ohm

R7 RESISTOR; (0603) 95.3 Ohm

U2 DOCSIS 3.1 PGA MAX3523 MAXIM

T1 TRANSFORMER, Impedance ratio: 50:75 617PT-2290 MURATA

Components used only in this EV kit

R8 Place holder OPEN

C3 Place holder OPEN


C1 CAPACITOR; SMT (0603) 0.01UF

C6 CAPACITOR; SMT (0805) 10UF

C16, C17 Place holder OPEN


J1, J2 SMA SMA

JP3, TP3, JP30 Test Point Red Test Point

JP4, TP4, TP5 Test Point Black Test Point

L3, L4 Place holder, AC coupling Cap 0.01uF

R2, R4, R13 RESISTOR; 0402 10K

R5 RESISTOR; 1206 75-50 MLP 43.2

R6 RESISTOR; 1206 75-50 MLP 86.6

R9 RESISTOR; 0603 0

R10 RESISTOR; 0402; 20K

R11, R14 RESISTOR; 0402; 100K

T3 TRANSFORMER, Impedance ratio: 50:100 MABA-009250-CT0068

TP1, TP2, TP8 Test Point Yellow Test Point

U1 USB-SPI communication module MAX32630FTHR MAXIM

MAX3523 EV Kit Bill of Materials




MAX3

523 T

YP C

IRCU

IT

THOS

E 2 C

ONNE

CTTO

R AR

EFOR

DEB

UG O

NLY,

COUL

D BE

REM

OVED

LATE

R

95.3

3.9PF

MAX3

2630

FTHR

SEE SPECIAL INSTRUCTION

100

DNI

600

5.1NH

MI0805J102R-10

MAX3

523

DNI

0.01UF

MACO

M MA

BA-0

0925

0-CT

0068

DNI

2.7PF

0.01UF

0.01UF

142-0701-801

1000PF

100

TPTP

100K

0.01UF CAP

NDI

0.01UF

43.2

TP

20K

10K

100K10K

DNI

DNI

10UF

142-0701-801

0

RED TP

BLACK TP

0.01UF CAP

86.6

10K

6.2

600

DNI

617PT-2290

DNI

C8

C17

B1

R9

L2

L1

C7

U2

R1

C16

C14

TP1

T1

JP30

C3

C4

R12

R7

TP4

C2

JP3

JP4TP

3 TP5

R13

R10

R4R11 R14

J4J4

L4L3

R2

TP8

U1

T3

J2

R5

B2

J1

C5

C1C6

R6

C18

C9

R3

R8

VDD_DIG

SCLK

VDD_RF

CSBTXEN

SCLK

VDD_RF

5V

SDA

MUX

TXEN

SDA

SCLK

SDA

TXEN

CSB

CSB

5V

VDD_DIG

MUX

1817

1

2

CN2-

23CN

2-25

21

CN2-

9CN

2-11

CN2-

13CN

2-15

CN2-

20CN

3-19

CN3-

26CN

3-24

122

3

10

876

CN3-

2CN

3-3

CN2-

6CN

2-8

CN2-

17

1

2

1

511

1

2

1

13

CN2-

2

CN2-

21

CN2-

5CN

2-3

CN2-

26CN

2-24

CN2-

22CN

2-19

CN2-

18CN

2-16

CN2-

14CN

2-12

CN2-

10CN

2-7

CN3-

22

CN3-

1

CN3-

8

CN3-

4

CN3-

11CN

3-13

CN3-

15CN

3-17

CN3-

18CN

3-20

CN3-

21CN

3-23

CN3-

25

221

6 43

28272625242322191817

16151413121110987654321

2019

16

15 14

9

421

21

46 5

3

534

1

5

42

1

CN2-

4

CN3-

5CN

3-7

CN3-

9

2

20

CN2-

1

CN3-

6

CN3-

16CN

3-14

CN3-

12CN

3-10

21

1

3

CD0

CD1

CD2

CD3

VIO

CD4

CD5

CD6

CD7

DD0

DD1

DD2

DD3

DD4

VIO

DD5

DD6

DD7

PWRE

N#DA

TACL

KCS

GND

VCC

GND

VBUS

SE

CP

RI

EP

GNDGNDGNDVCCMUX

GND

OUT

+G

NDO

UT-

GND

VCCTXENCSSDASCLK

GND

_DIG

NCIN-

IN+

GND

P3_4

P3_5

P3_2

P3_3

P5_3

P5_4

P5_5

P5_6

P4_0

VBUS

PWR

SYS

GND

P3_1

P3_0

P5_2

P5_1

P5_0

P6_0

P5_7

AIN_

3AI

N_2

AIN_

1AI

N_0

GND

1V8

3V3

RST

BD7

SUSP

END#

BD5

BD6

BD4

VIO

BD2

BD3

BD0

BD1

AD6

AD7

AD4

AD5

AD3

VIO

AD1

AD2

RESE

T#AD

0G

NDV3

V3G

NDV3

V3G

NDV3

V3

MAX3523 EV Kit Schematic




MAX3523 EV Kit—Top Silkscreen MAX3523 EV Kit—Top

MAX3523 EV Kit—Internal 2

MAX3523 EV Kit PCB Layout Diagrams




MAX3523 EV Kit—BottomMAX3523 EV Kit—Internal 3

MAX3523 EV Kit PCB Layout Diagrams (continued)

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2018 Maxim Integrated Products, Inc. │ 13


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