Alpha Bridge AQSFP-40G-SR4,3

Features

  • 4 independent full-duplex channels
  • Up to 2Gb/s data rate per channel
  • MTP/MPO optical connector
  • QSFP+ MSA compliant
  • Digital diagnostic capabilities
  • Up to 300m transmission on OM3 multi- mode fiber
  • CML compatible electrical I/O
  • Single 3V power supply
  • Commercial case temperature: 0 to 70oC
  • XLPPI electric interface
  • Maximum power consumption 5W
  • RoHS-6 compliantc

Applications

  • Rack to Rack
  • Data Center
  • Infiniband QDR, DDR and SDR
  • 40G Ethernet

Description

This product is a parallel 40Gb/s Qual Small Form Factor Pluggable (QSFP+) optical module. It provides increased port density and total system cost saving. The QSFP+ full-duplex module offers 4 independent transmit and receive channels, each capable of 10Gb/s operation for an aggregate data rate of 40Gb/s on 300 meters of OM3 Multi-mode fiber. An optical fiber ribbon cable with an MTP/MPO connector can be plugged into the QSFP+ module receptacle. Proper alignment is ensured by the guide pins inside the receptacle. The cable usually can not be twisted for proper channels to channel alignment. Electrical connection is achieved through an MSA-compliant 38-pin edge type connector.

 

The module operates by a single 3.3V power supply. LVCMOS/LVTTL global control signals, such as Module Present, Reset, Interrupt and Low Power Mode, are available with the modules. A 2-wire serial interface is available to send and receive more complex control signals, and to receive digital diagnostic information. Individual channels can be addressed and unused channels can be shut down for maximum design flexibility.

 

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, Humidity and EMI interface. The module offers very high functionality and feature integration, accessible via a two-wire serial interface

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units
Storage Ambient Temperature TsTG -40 85 ℃
Supply Voltage Vcc 0 70 ℃
Operating Case Temperature Top -0.5 3.6 V
Relative Humidity (non-condensation) RH 0 85 %
Damage Threshold, each Lane THd 3.4 dBm

Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Units
Operating Temperature Top 0 +70 ℃
Power Supply Voltage Vcc 3.135 3.3 3.465 V
Data Rate, each Lane 10.3125 11.2 Gb/s
Control Input Voltage High 2 Vcc V
Control Input Voltage Low 0 0.8 V
Link Distance (OM3) D 300 m

Diagnostics

Parameter Symbol Accuracy Units Notes
Temperature monitor absolute error DMI_Temp ±3 ℃  Over operating temperature range
Supply voltage monitor absolute error DMI _VCC ±0.1 V Over full operating range
Channel RX power monitor absolute error DMI_RX_Ch ±2 dB 1
Channel Bias current monitor DMI_Ibias_Ch ±10% mA Ch1-Ch4
Channel TX power monitor absolute error DMI_TX_Ch ±2 dB 1

Optical Characteristics

Parameter Symbol Min Type Max Unit Notes
Center Wavelength λC 840 850 860 nm 1
Transmitter
RMS Spectral Width Δλms     0.45 nm 1
Average Launch Power, each Lane PAVG -7.3   1 dBm 2
Optical Modulation Amplitude (OMA) each Lane POMA -4.3   3 dBm 1
Difference in Launch Power between any Two Lanes (OMA) Ptx,diff     4 dB  
Peak Power, each Lane PPT     4 dBm  
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP) each Lane   -6.5     dBm  
TDP, each lane TDP     3.5 dB  
Extinction Ratio ER 3     dB  
Relative Intensity Noise RIN     -128 dB/Hz 12dB reflection
Optical Return Loss Tolerance TOL     12 dB  
Encircled Flux ≧ 86% at 19um ≦ 30% at 4.5um 
Transmitter Eye Mask Definition (X1, X2, X3, Y1, Y2, Y3)  {0.23,0.34,0.43,0.27,0.35,0.4}   
Average Launch Power OFF Transmitter each Lane Poff     -30 dBm  
Receiver
Damage Threshold, each Lane THd 3.4     dBm 3
Average Receive Power, each Lane   -9.9   2.4 dBm  
Receiver Reflectance RR     -12 dB  
Receiver Power (OMA) each Lane       3 dBm  
Receiver Sensitivity (OMA) each Lane SEN     -11.1 dBm  
Stressed Receiver Sensitivity (OMA) each Lane       -7.5 dBm 4
Peak Power, each Lane PPR     4 dBm  
LOS Assert LOSA -30     dBm  
LOS Deassert LOSD     -12 dBm  
LOS Hysteresis LOSH 0.5   dB  
Conditions of Stress Receiver Sensitivity Test (Note 5)
Vertical Eye Closure Penalty, each Lane     1.9   dB  
Stressed Eye J2 Jitter, each Lane     0.3   UI  
Stressed Eye J9 Jitter, each Lane     0.47   UI  
OMA of each aggressor Lane     -0.4   dBm  

Electronical Characteristics

Parameter Symbol Min. Typ. Max. Units Note
Power Consumption       1.5 W  
Supply Current Icc     450 mA  
Transceiver Power-on Initialization Time       2000 ms 1
Transmitter (each lane) Single-ended Input Voltage Tolerance (Note 2)   -0.3   4 V Referred to TP1 signal common
AC Common Mode Input Voltage Tolerance   15     mV RMS
Differential Input Voltage Swing Threshold   50     mVpp LOSA Threshold
Differential Input Voltage Swing Vin,pp 180   1200 mVpp  
Differential Input Impedance Zin 90 100 110 Ohm  
Differential Input Return Loss  See IEEE 802.3ba 86A.4.11  dB 10MHz-11.1GHz
J2 Jitter Tolerance Jt2 0.17     UI  
J9 Jitter Tolerance Jt9 0.29     UI  
Data Dependent Pulse Width            
Shrinkage (DDPWS) Tolerance   0.07     UI  
Eye Mask Coordinates (X1, X2, Y1, Y2)  0.11, 0.31, 95, 350  UI / mV Hit Ratio=5x10-5
Receiver (each Lane)
Single-ended Output Voltage   -0.3   4 V Referred to signal common
AC Common Mode Output Voltage       7.5 mV RMS
Differential Output Voltage Swing Vout,pp 600   800 mVpp  
Differential Output Impedance Zout 90 100 110 Ohm  
Termination Mismatch at 1MHz       5 %  
Differential Output Return Loss  See IEEE 802.3ba 86A.4.2.1 dB 10MHz~11.1GHz
Common Mode Output Return Loss  See IEEE 802.3ba 86A.4.2.2  dB 10MHZ~11.1GHz
Output Transition Time   28     ps 20% to 80%
J2 Jitter Output Jo2     0.42 UI  
J9 Jitter Output Jo9     0.65 UI  

Pin Descriptions

PIN Logic Symbol Description Note
1   GND Ground 1
2 CML-I Tx2n Transmitter Inverted Data Input  
3 CML-I Tx2p Transmitter Non-Inverted Data output  
4   GND Ground 1
5 CML-I Tx4n Transmitter inverted Data Input  
6 CML-I Tx4p Transmitter Non-Inverted Data output  
7   GND Ground 1
8 LVTLL-I ModSeIL Module Select  
9 LVTLL-I ResetL Module Reset  
10   VccRx +3.3V Power Supply Receiver 2
11 LVCMOS-I/O SCL 2-Wire Serial Interface Clock  
12 LVCMOS-I/O SDA 2-Wire Serial Interface Data  
13   GNC Ground  
14 CML-O Rx3p Receiver Non-Inverted Data output  
15 CML-O Rx3n Receiver Inverted Data output  
16   GND Ground 1
17 CML-O Rx1p Receiver Non-Inverted Data Output  
18 CML-O Rx1n Receiver Inverted Data Output  
19   GND Ground 1
20   GND Ground 1
21 CML-O Rx2n Receiver Inverted Data output  
22 CML-O Rx2p Receiver Non-Inverted Data output  
23   GND Ground 1
24 CML-O Rx4n Receiver Inverted Data output 1
25 CML-O Rx4p Receiver Non-Inverted Data output  
26   GND Ground 1
27 LVTTL-O ModPrsL Module Present  
28 LVTTL-O IntL Interrupt  
29   VccTx +3.3V Power Supply transmitter 2
30   Vcc1 +3.3V Power Supply 2
31 LVTTL-I LPMode Low Power Mode  
32   GND Ground 1
33 CML-I Tx3p Transmitter Non-Inverted Data Input  
34 CML-I Tx3n Transmitter Inverted Data Output  
35   GND Ground 1
36 CML-I Tx1p Transmitter Non-Inverted Data Input  
37 CML-I Tx1n Transmitter Inverted Data Output  
38   GND Ground 1

Ordering Information

Model Number Part Number Voltage Temperature
AQSFP-40G-SR4,3 OPCS-MX3-85-CB 3.3V 0°C to 70 °C
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