Alpha Bridge AB-QSFP+-01 Datasheet

Features

  • 4 channels full-duplex transceiver modules
  • 3125Gb/s data rate per channel
  • 4 channels 850nm VCSEL array
  • 4 channels PIN photo detector array
  • Single MPO connector receptacle
  • Hot Pluggable QSFP+ form factor
  • Maximum link length of 100m on OM3 Multimode Fiber (MMF) and 150m on OM4 MMF
  • Compatible with RoHS
  • Single +3.3V power supply
  • Real Time Digital Diagnostic Monitoring
  • Operating case temperature: 0 to +70°C

Applications

  • 40GBASE-SR4 Ethernet
  • Switch, router and HBAs
  • Infiniband transmission at 4 channels SDR, DDR and QDR
  • High-performance Backplane Applications
  • Proprietary Protocol Applications

Product Description

The QSFP+ SR4 transceivers are high-performance, cost-effective modules supporting data rate of 40Gbps and 100m transmission distance with MMF.

The transceiver consists of three sections: 4 channels 850nm VCSEL array, 4 channels PIN photo detector array and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with 40GBASE-SR4 of IEEE802.3ba standard and SFF-8436 specification.

Absolute Maximum Ratings

Parameter Symbol Min Max Unit
Supply Voltage Vcc -0.5 4.5 V
Storage Temperature Ts -20 85 °C
Operating Humidity - 5 85 %

Recommended Operating Conditions

Parameter Symbol Min Typical Max Unit
Operating Case Temperature Tc 0   70 °C
Power Supply Voltage Vcc 3.135 3.3 3.465 V
Power Dissipation Pm     1.5 W
Data Rate     10.3125   Gbps

Optical Parameters

Parameter Symbol Min Typical Max Unit Notes
Transmitter
Centre Wavelength λc 840 850 860 nm  
RMS spectral width Δλ - - 0.65 nm  
Average launch power, each lane Pout -7.6   2.4 dBm  
Extinction Ratio ER 3     dB  
Average launch power of OFF transmitter, each lane Poff     -30 dBm  
Data Input Swing Differential VIN 90   1600 mV  
Input Differential Impedance ZIN 80 100 120 Ω  
Receiver
Centre Wavelength λc 840   860 nm  
Damage threshold THd 3.4     dBm  
Average power at receiver input,each lane   -9.5   2.4 dBm  
LOS De-Assert LOSD     -12 dBm  
LOS Assert LOSA -30     dBm  
LOS Hysteresis   0.5     dB  

Pin Descriptions

Pin Logic Symbol Name/Description Ref.
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 Output  
6 CML-I Tx4p Transmitter Non-Inverted Data Output  
7   GND Ground 1
8 LVTTL-I ModSelL Module Select  
9 LVTTL-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   GND Ground 1
14 CML-O Rx3p Receiver Inverted Data Output  
15 CML-O Rx3n Receiver Non-Inverted Data Output  
16   GND Ground 1
17 CML-O Rx1p Receiver Inverted Data Output  
18 CML-O Rx1n Receiver Non-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  
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 Inverted Data Output  
34 CML-I Tx3n Transmitter Non-Inverted Data Output  
35   GND Ground 1
36 CML-I Tx1p Transmitter Inverted Data Output  
37 CML-I Tx1n Transmitter Non-Inverted Data Output  
38   GND Ground 1

Ordering Information

Part Number Description
AB-QSFP+-01 40Gbps, 850nm, MPO, 100m, 0°C~+70°C, with DDM
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