SFP+ CPRI Transceiver

Technical Data SFP+ CPRI Transceiver (Rev 1.1/June 20, 2010)

SFP+ CPRI Transceiver TRS2200Wx-1001 (850nm MMF 300m 6.1Gb/s CPRI Transceiver) TRS5200Wx-1001 (1310nm SMF 2km 6.1Gb/s CPRI Transceiver) TRS5220Wx-1001 (1310nm SMF 10km 6.1Gb/s CPRI Transceiver)

SFP+ Transceiver

FEATURES • SFF-8431 Compliant SFI Electrical Interface • Multirate up to 6.1Gbit/s • RoHS 6 compliant • Hot Z-Pluggable • LC-Duplex Optical Receptacle • Digital Diagnostics support per SFF-8472 • Maximum Power Dissipation 1W • Class 1 Laser: IEC 60825-1:1993:+A1:1997+A2:2001 • Metal housing – superior EMI performance • Operating Case Temperature: -5 to 85 °C • Industrial Operating Temperature version available: -40 to 85 °C

Receiver: PIN Photo-detector • Transmitter: (TRS2200Wx-1001) VCSEL 300m km reach (TRS5200Wx-1001) FP Laser 2 km reach

(TRS5220Wx-1001) DFB Laser 10km reach

APPLICATIONS Wireless backhaul and cellular base station interconnects

• CPRI line bit rate option 3: 2457.6 Mbit/s (4 x 614.4 Mbit/s) • CPRI line bit rate option 4: 3072.0 Mbit/s (5 x 614.4 Mbit/s) • CPRI line bit rate option 5: 4915.2 Mbit/s (8 x 614.4 Mbit/s) • CPRI line bit rate option 6: 6144.0 Mbit/s (10 x 614.4 Mbit/s)

GENERAL DESCRIPTION

This document describes specification for the Opnext 6.1Gbit/s 850nm and 1310nm SFP+ CPRI transceiver. Designed for wireless backhaul/cellular base station interconnects using the CPRI protocol, Opnext SFP+ CPRI transceivers are compliant to the related SFP+ standards and multi-sourcing-agreements standards (SFF-8431, SFF-8472, SFF-8432, and SFF-8083).


REFERENCE The following interface standards are relevant to SFP+ Specifications.

1) SFF-8431 – Enhanced 8.5 and 10 Gigabit Small Form Factor Pluggable Module (SFP+) 2) SFF-8432 - Improved Pluggable Formfactor 3) SFF-8083 - 0.8 mm SFP+ Card Edge Connector Dimensioning 4) SFF-8089 - SFP Rate and Application codes 5) SFF-8079 - SFP Rate and Application Selection 6) SFF-8472 - Diagnostic Monitoring Interface for Optical Xcvrs 7) INF-8074i - SFP (Small Form Factor) Transceiver 8) INF-8077i - 10 Gigabit Small Form Factor Pluggable Module (XFP MSA) 9) FC-PI-4 - High speed signaling for 8.5Gb/s Fibre Channel is defined in INCITS FC-PI-4. 10) FC-MJSQ - Methodologies for Jitter and Signal Quality Specifications FC INCITS Project

1316-DT 11) MIL-STD-883, Method 3015.4 12) JESD22-A114-A (HBM) 13) IEC 801.2 (Air Discharge) 14) CPRI V4.1 – Common Public Radio Interface Specification version 4.1

DESCRIPTION Functional Description (1) SFI Data Interface

The SFP+ Module transmitter electrical specifications are given below in Table 1, measured at compliance point B’ as shown in Figure 1. The transmitter input impedance is 100 Ohms differential. The module must provide differential termination and reduce differential to common mode conversion for quality signal termination and low EMI, as given in Table 1.

Figure 1: Interface to Host

The SFI jitter specifications at reference point B’ are listed in Table 1 and the compliance mask


is shown in Figure 2. Signals used as input conditions at point B’ are measured and calibrated with the Module Compliance Test Board connected through a Host System Compliance Test Board to appropriate instrumentation.

Table 1: SFP+ Module Transmitter Characteristics at B' Parameter @ B’ Symbol Conditions Min. Typ. Max. Units DC Common Mode Voltage VCM 0 3.6 V

Input AC Common Mode Voltage

See SFF-8431 Appendix

D.10 12.5 mVRMS

0.01 – 3.9 GHz -10 dB Differential Input S-

Parameter SDD11 3.9 – 11.1 GHz See 1 dB

Differential to Common Mode Conversion SCD11 0.01 – 11.1

GHz -10 dB

Total Jitter TJ 0.31 UIptp

Deterministic Jitter DDJ See SFF-8431 Appendix D.3 0.17 UIptp

Eye Mask X1 0.14 UI Eye Mask X2 0.45 UI Eye Mask Y1 90 mV Eye Mask Y2 350 mV 1. Reference differential impedance is 100 Ω 2. Return Loss given by equation SDD11(dB)= -8 + 13.33 Log10(f/5.5), with f in GHz. 3. Common mode reference impedance is 25 ΩDifferential to common mode conversion relates to generation of EMI.

Figure 2: Eye Mask at B'

The SFI receiver electrical output specifications at compliance point C’ are given in Table 2. The

module must provide differential termination and common mode termination for quality signal termination and low EMI, as given in Table 2.

Jitter specifications for limiting modules are listed in Table 2. Figure 3 gives the compliance eyemask for limiting modules output. Requirements for linear modules are given in Table 2.


Table 2: SFP+ Module Receiver Characteristics at C’ Parameter @ C’ Symbol Conditions Min. Typ. Max. Units Termination Mismatch ∆ZM See SFF-8431 5 % DC Common Mode Voltage VCM 0 3.6 V Output AC Common Mode Voltage See SFF-8431 7.5 mVRMS

Output Rise and Fall time (20 to 80%) See 1 24 ps

0.01 – 3.9 GHz -10 dB Differential Output S-

Parameter SDD22 3.9 – 11.1 GHz See 3 dB

0.01 – 11.1 GHz -7 dB Common Mode Output

Return Loss SCC22 3.9 – 11.1 GHz -3 dB

Deterministic Jitter DJ See SFF-8431 0.42 UIptp Total Jitter TJ See SFF-8431 0.71 UIptp Eye Mask X1 0.35 UI Eye Mask Y1 150 mV Eye Mask Y2 425 mV 1. Measured with an OMA test pattern. Use of 4 1’s and 4’0 sequence in the PRBS 9 is an acceptable alternative. 2. Reference differential impedance is 100 Ω. 3. Return Loss given by equation Sxx22(dB)= -8 + 13.33 Log10(f/5.5), with f in GHz . 4. Common mode reference impedance is 25 Ω. Common Mode Output Return Loss helps absorb reflection and noise improving EMI.

Figure 3: SFP+ Eye Mask at C'

(2) Low Speed Control Pins In addition to the 2-wire serial interface described in part (3), the SFP+ module has six low

speed pins for control and status which are pulled to the Host_Vcc as defined in table 3. The pins are:

• TX_Fault • TX_Disable • RS0/RS1 • MOD_ABS • RX_LOS


Table 3: Low Speed Control Pin Logic Levels Parameter Symbol Min. Max. Unit Conditions Host VCC Range Host_VCC 3.14 3.47 V with ± 5% variation

VOL 0.0 0.40 V See 1 TX_Fault, RX_LOS VIL Host_VCC – 0.5 Host_VCC + 0.3 V See 1

VIL -0.3 0.8 V TX_Disable VIH 2.0 VCCT + 0.3 V VIL -0.3 0.8 V RS0, RS1 VIH 2.0 VCCT + 0.3

1. Rpullup (Rp) is the pull up resistor. Active bus termination may be used by the host in place of a pullup resistor. Pull ups can be connected to multiple power supplies, however the host board design shall ensure that no module pin has voltage exceeding module. Measured at the Host side of the connector.

TX_Fault is a module output pin that when High, indicates that the module transmitter has

detected a fault condition related to laser operation or safety. The TX_Fault output pin is an open drain/collector and must be pulled up to the Host_Vcc with 4.7k-10kΩ on the host board

TX_Disable is a module input pin. When TX_Disable is asserted High or left open, the SFP+

module transmitter output must be turned off. The TX_DIS pin must be pulled up to VccT in the SFP+ module.

RS0 and RS1 are module input rate select pins and are pulled low to VeeT with a > 30kΩ

resistor in the module. The SFP+ module provides these two inputs RS0 and RS1 that can optionally be used for rate selection. RS0 controls the receive path baudrate capability, and RS1 controls the transmit path baudrate capability, as defined in Table 4. The host and module may choose to use either, both, or none of these functions. These pins are optional to use by the host or module. Host utilizing RS1 must provide short circuit protection in case of the insertion of a Classic SFP which had RS1 tied to ground. For logical definitions of RS0/RS1 see table 4. RS1 are commonly connected to VeeT or VeeR in the legacy SFP modules. The host needs to ensure that it will not be damaged if this pin is connected to VeeT or VeeR in the module.

Table 4: Rate Select HW Control Pins

Parameter State Conditions Low RX Signaling rate <= 4.25Gb/s RS0 High RX Signaling rate > 4.25Gb/s Low RX Signaling rate <= 4.25Gb/s RS1 High RX Signaling rate > 4.25Gb/s

Mod_ABS is pulled up to Host_Vcc with 4.7k-10kΩ on the host board and connected to

VeeT or VeeR in the SFP+ module. MOD_ABS is then asserted “High” when the SFP+ module is physically absent from a host slot. In the SFP MSA (INF8074i) this pin had the same function but is called MOD_DEF0.

RX_LOS when high indicates an optical signal level below that specified in the relevant

standard. The RX_LOS pin is an open drain/collector output and must be pulled up to host Vcc with a 4.7k-10kΩ on the host board. RX_LOS assert min and de-assert max are defined in this specification.


(3) 2 Wire Interface I2C: SDA & SCL

SCL is the 2-wire interface clock and SDA is the 2-wire interface data line. SCL and SDA are pulled up with a voltage in the range of 3.15 V to 3.45 V on the host. SFP+ low speed interface is based on 2-wire interface. SFP+ 2-Wire interface is based on Low Voltage TTL (LVTTL) operating with a supply of 3.3V ± 5% and are given in Table 5. This specification ensures compatibility between host masters and SFP+ SCL/SDA lines and compatibility with I2C. All voltages are referenced to VeeT.

Table 5: 2 Wire Interface Physical Interface

Parameter Symbol Min. Max. Unit Conditions Host VCC Range Host_VCC 3.14 3.46 V

VOL 0.0 0.40 V Rpullup1 pulled to

Host_VCC. IOL(max) = 3mA SCL and SDA

VOH Host_VCC – 0.5 Host_VCC + 0.3 V Rpullup1 pulled to Host_VCC.

VIL -0.3 VCCT * 0.3 V SCL and SDA VIH VCCT * 0.7 VCCT + 0.5 V Input Current on SCL and SDA pins IL -10 10 µA

Capacitance on SCL and SDA pins Ci 14 pF

100 pF

At 400 kHz, Rp (max) = 3.0 kΩ

At 100 kHz, Rp (max) = 8.0 kΩ Total bus

capacitance for SCL and SDA

Cb

290 pF



1. Rpullup (Rp) is the pull up resistor. Active bus termination may be used by the host in place of a pullup resistor. Pull ups can be connected to multiple power supplies, however the host board design shall ensure that no module pin has voltage exceeding module. Measured at the Host side of the connector. VccT/R + 0.5 V nor requires the module to sink more than 3.0mA current. 2. Ci is the capacitance looking into the module SCL and SDA pins 3. Cb is the total bus capacitance on the SCL or SDA bus.

SFP+ 2-wire bus timing is shown in Figure 4. SFP+ AC specifications are given in Table 7. SFP+ management memory map is based on SFF-8472. Nomenclature for all registers more than 1 bit long is MSB-LSB. For further background on memory access please refer to SFF-8431 section 4.5 and 4.6.


Figure 4: SFP+ Timing Diagram

Table 6: SFP+ 2 Wire Interface Timing Requirements Parameter Symbol Min. Max. Unit Conditions Clock Frequency fSCL 0 400 kHz Clock Pulse Width Low tLOW 1.2 µs Clock Pulse Width High tHIGH 0.6 µs Time bus free before new transaction can start

tBUF 20 µs Between STOP and START

START Hold time tHD,STA 0.6 µs START Set-Up time tSU,STA 0.6 µs Data in Hold time tHD,DAT 0 µs Data in Set-Up time tSU,DAT 0.1 µs Input Rise time (100 kHz) tR,100 1000 ns See 1 Input Rise time (400 kHz) tR,400 300 ns See 1 Input Fall time (100 kHz) tF,100 300 ns See 1 Input Fall time (400 kHz) tF,400 300 ns See 1 STOP Set-Up time tSU,STO 0.6 µs Serial Interface Clock Holdoff “Clock Stretching”

T_clock_hold

500 µs Maximum time the SFP+ may hold the SCL line low before continuing R or W operation

Complete Single or Sequential Write

tWR 40 Ms Complete (up to) 8 Byte Write

Endurance (Write Cycles) 50 k Cycles @ Max Operating Temperature 1. From (VIL,MAX - 0.15) to (VIH,MIN + 0.15)


(4) SFP+ Module Timing In the below figures are shown the required timing for TX_Fault and TX_Disable in various

conditions. For more detail, please refer to SFF-8431.

Figure 5: Initialization with TX-Disable Negated

Figure 6: Initialization with TX-Disable Asserted

Figure 7: Hot Plug Insertion with TX-Disable Negated


Figure 8: SFP+ Response to TX_Disable

Figure 9: SFP+ Response to Transmitter Safety Fault

(5) Maximum Current Ramp on Power supply

In the below figure and table are shown the required inrush current characteristics for the module power pins.

Table 7: Inrush Current Parameter Symbol Min. Max. Unit Remarks

Instantaneous peak current at hot plug

Icc_peak - 400 mA Per SFF-8431

Sustained peak current at hot plug

Icc_peak - 330 mA Per SFF-8431

1. The current draw should not exceed the 50mA/ms slope for any period of time greater than 1ms. 2. Target to keep ∆I (=Icc_peak – Icc_steady_state) less than 30mA rather than the 45mA which is specified

∆ I c c /∆ t I c c

T = 0 ( I n it ia l C u r r e n t D r a w )

I c c _ s te a d y - s ta te ( 2 8 5 m A )

I c c _ p e a k ( 3 3 0 m A )

Figure 10: Inrush current transitional characteristics


PERFORMANCE SPECIFICATIONS

Absolute Maximum Ratings Stresses in excess of the Absolute Maximum Ratings can cause permanent damage to the transceiver.

Table 8: Absolute Maximum Ratings No. Parameter Symbol Min. Max. Unit Remarks 1 Supply Voltage VCCT 0 +3.6 V +3.3V nominal 2 Storage Temperature TSTR -40 +85 °C

Operating Environment Electrical and optical characteristics below are defined under this operating environment, unless otherwise specified.

Table 9: Operating Environment No. Parameter Symbol Min. Typ Max Unit Remarks 1 Supply Voltage VCCT 3.135 3.300 3.465 V +3.3V 2 Supply Voltage VCCR 3.135 3.300 3.465 V +3.3V

-5 Medium “M” -20 Extended “E” 3 Operating Case

Temperature TC -40

25 85 °C Industrial “V”

Table 10: 6Gb/s CPRI 300m VCSEL – Optical Specifications

Transmission Distance on Different Multimode Fiber Types

CPRI Rate Nominal Data Rate

OM3 (50µm) Multimode Fiber

OM2 (50µm) Multimode Fiber

OM1 (62.5µm) Multimode Fiber

Option 3 2.457Gb/s Option 4 3.072Gb/s

0.5 – 500m 0.5 – 200m 0.5 – 100m

Option 5 4.915Gb/s Option 6 6.144Gb/s

0.5 – 300m 0.5 – 75m 0.5 – 30m

Transmitter Optical Specifications No. Parameter Symbol Min. Typ Max Unit Remarks 1 Mean Optical Wavelength λ 840 860 nm 2 RMS spectral width ∆λRMS 0.65 nm 3 Average Launch Power PAVG -8.2 Class 1 dBm

4 Optical Modulation Amplitude (@ 6.1Gb/s) OMA 0.302

-5.2 mW dBm

5 Relative Intensity Noise RIN -128 dB/Hz Receiver Optical Specifications

No. Parameter Symbol Min. Typ Max Unit Remarks 1 Maximum Input Power PMAX 0 dBm

2 Unstressed Sensitivity OMA(@ 6.1Gb/s) PMIN 0.076

-11.2 mW dBm


3 Optical Return Loss ORL 12 dB 4 Loss of Signal Assert LOSA -31 -14 dBm 5 Loss of Signal Hysteresis ∆LOS 0.5 6 dBm

Table 11: 6Gb/s CPRI 2km FP – Optical Specifications

Transmission Distance on Singlemode Fiber CPRI Rate Nominal Data Rate Single Mode Fiber Option 3 2.457Gb/s Option 4 3.072Gb/s Option 5 4.915Gb/s Option 6 6.144Gb/s

2 – 2,000m

Transmitter Optical Specifications No. Parameter Symbol Min. Typ Max Unit Remarks 1 Mean Optical Wavelength λ 1260 1310 1360 nm 2 Average Launch Power PAVG -8.4 0.5 dBm 3 Extinction Ratio ER 3.5 dB 4 Relative Intensity Noise RIN 128 dB/Hz

Receiver Optical Specifications No. Parameter Symbol Min. Typ Max Unit Remarks 1 Maximum Input Power PMAX 0.5 dBm

2 Unstressed Sensitivity OMA PMIN 0.042

-13.8 mW dBm


Table 12: 6Gb/s CPRI 10km DFB – Optical Specifications

Transmission Distance on Singlemode Fiber CPRI Rate Nominal Data Rate Single Mode Fiber Option 3 2.457Gb/s Option 4 3.072Gb/s Option 5 4.915Gb/s Option 6 6.144Gb/s

2 – 10,000m

Transmitter Optical Specifications No. Parameter Symbol Min. Typ Max Unit Remarks 1 Mean Optical Wavelength λ 1260 1360 nm 2 -20 dB spectral width ∆λ 1 nm 3 Side Mode Suppression SMSR 30 dB 4 Average Launch Power PAVG -8.4 0.5 dBm

5 Optical Modulation Amplitude OMA 0.290

-5.4 mW dBm

6 Extinction Ratio ER 3.5 dB 7 Relative Intensity Noise RIN 128 dB/Hz


Receiver Optical Specifications No. Parameter Symbol Min. Typ Max Unit Remarks 1 Maximum Input Power PMAX 0.5 dBm

2 Unstressed Sensitivity OMA PMIN 0.042

-13.8 mW dBm


Electrical Performance Table 13: Power Supply Characteristics

No. Parameter Symbol Min. Typ. Max. Unit Remarks1 Supply Voltage VCCT 3.135 3.300 3.465 V 2 Supply Current ICCT - - 300 mA see 1 3 Power Consumption PDS - - 1.0 W see 1

1. Guaranteed over all operating conditions for standard temperature range 0 to 70°C . For extended temperature range -5 to 85°C a maximum of 1.0W is guaranteed for TRS2200SM and 1.2W for TRS5220SM.

Table 14: Pin Description

Pin Logic Symbol Power

Sequence Order

Name/Description Notes

1 VeeT 1st Module Transmitter Ground 1 2 LVTTL-O TX_Fault 3rd Module Transmitter Fault 2 3 LVTTL-I TX_Disable 3rd Transmitter Disable; Turn off laser output 3 4 LVTTL-I/O SDA 3rd 2-Wire Serial Interface Data Line 4 5 LVTTL-I/O SCL 3rd 2-Wire Serial Interface Clock 4

6 Mod_Abs 3rd Module Absent, connected to VeeT or VeeR in the module 5

7 LVTTL-I RS0 3rd Rate Select 0; Used to control rate in 8GFC SFP+ 6

8 LVTTL-O RX_LOS 3rd Receiver Loss of Signal Indicator (Signal Detect in Ethernet) 2

9 LVTTL-I RS1 3rd Rate Select 0; Used to control rate in 8GFC SFP+ 6

10 VeeR 1st Module Receiver Ground 1 11 VeeR 1st Module Receiver Ground 1 12 CML-O RD- 3rd Receiver Inverted Data Output 13 CML-O RD+ 3rd Receiver Non-Inverted Data Output 14 VeeR 1st Module Receiver Ground 1 15 VccR 2nd Module Receiver 3.3V Supply 16 VccT 2nd Module Transmitter 3.3V Supply


17 VeeT 1st Module Transmitter Ground 1 18 CML-I TD+ 3rd Transmitter Non-Inverted Data Output 19 CML-I TD- 3rd Transmitter Inverted Data Output 20 VeeT 1st Module Transmitter Ground 1

1. The module signal ground pins, VeeR and VeeT, shall be isolated from the module case. 2. This pin is an open collector/drain output pin and shall be pulled up with 4.7k-10kohms to Host_Vcc Table 5 on the

host board. Pull ups can be connected to multiple power supplies, however the host board design shall ensure that no module pin has voltage exceeding module VccT/R + 0.5 V.

3. This pin is an open collector/drain input pin and shall be pulled up with 4.7k-10kohms to VccT in the module. 4. See 4.2 2-Wire Electrical Specifications . 5. This pin shall be pulled up with 4.7k-10kohms to Host_Vcc on the host board. 6. If implementing SFF-8079 pin 7 and 9 are used for AS0 and AS1 respectively.

Mechanical Dimensions and label location

• Complies to SFF-8432, the improved Pluggable form factor specification • Complies to optional operational mechanical shock test in issue 2 of GR468.

Figure 11: SFP+ mechanical dimensions


Label design (Product label)

Figure 12: SFP+ mechanical dimensions

Optical Connector Parameter

LC Connector

Reliability • Comply to GR468

ESD EMI

• 6dB margin to class B. Laser Safety This is a Class 1 Laser Product according to IEC 60825-1:1993:+A1:1997+A2:2001. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated (July 26, 2001) RoHS

• RoHS-6 compliance

Test Standard Condition

MIL-STD-883, Method 3015.4 JESD22-A114-A (HBM)

2kV for electrical input pins ESD Threshold

IEC 61000–4–2 15kV air discharge, 8kV contact


USER INFORMATION

Handling Precaution CAUTION: Take proper electrostatic-discharge (ESD) precautions which handling these device. These devices are sensitive to ESD

Laser Safety This product complies with IEC 60825-1 Class 1. Because of size constraints, laser safety labeling is not affixed to the module but is attached to the outside of the shipping box

Document Number: OPP-DST-1006-1.1 Document Category: Product Datasheet Revision: 1.1 (June 20, 2010) Product Name: SFP+ CPRI Transceiver:

SFP+ CPRI Transceiver TRS2200Wx-1001 (MMF 300m 6.1Gb/s CPRI Transceiver) TRS5200Wx-1001 (SMF 2km 6.1Gb/s CPRI Transceiver)

TRS5220Wx-1001 (SMF 10km 6.1Gb/s CPRI Transceiver)

ORDERING INFORMATION

Item Parameter Symbol

(1) (2) (3) (4) (5)

Product Name TRS2200: 850nm direct modulation VCSEL (uncooled) / PIN transceiver for 6.1Gb/s for CPRI Applications (<300m)

TRS5200: 1310nm direct modulation FP (uncooled) / PIN transceiver for 6.1Gb/s for CPRI applications (2km)

TRS5220: 1310nm direct modulation DFB (uncooled) / PIN transceiver for 6.1Gb/s for CPRI applications (10km)

(6)

Product Code(Function) W: Wireless backhaul applications, Multirate

(7) Temperature Range M: Medium (-5 to 85°C)

E: Extended (-20 to 85°C) V: Industrial (-40 to 85°C)

(8) (9)

Hardware customized code 10: Standard

(10) (11)

Customer code Customer Code 01: Standard

(12) Product Code W: Working Sample Null: Mass Production Product

TRS 2

(1) (3)

x

(4)

x

(2)

0

(5)

W

(6)

x

(7)

1

(8)

0

(9)

-- x

(12)

0

(10)

1

(11)


Revision History

Rev. Date Page/Fig/Table Modification Note 1.0 May 18, 2010 - New datasheet release 1.1 June 21, 2010 Update PNs, formatting changes

SFP+ CPRI Transceiver

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