Alpha Bridge AQSFP-40G-LX4

Features

  • 4 CWDM lanes MUX/DEMUX design
  • Up to 11.2Gb/s data rate per wavelength
  • QSFP+ MSA compliant
  • IEEE 802.3ba Electrical Interface
  • Digital diagnostic capabilities
  • Compliant with QDR/DDR Infiniband data rates
  • Up to 150m transmission on OM3 multimode fiber (MMF) or 2km transmission on single mode fiber (SMF)
  • Operating case temperature: 0 to 70℃
  • Maximum power consumption 3.5W
  • LC duplex connector

Applications

  • 40GBASE-LX4 Ethernet Links
  • InfiniBand QDR and DDR & SDR interconnects
  • Client-side 40G datacom connections

Description

This product converts the 4-channel 10Gb/s electrical input data into CWDM optical signals (light), by a driven 4-wavelength Distributed Feedback Laser (DFB) array. The light is combined by the MUX parts as a 40Gb/s data, propagating out of the transmitter module from the MMF.

The receiver module accepts the 40Gb/s CWDM optical signals input, and de-multiplexes it into 4 individual 10Gb/s channels with different wavelength. Each wavelength light is collected by a discrete photo diode, and then outputted as electric data after amplified by a TIA and a post amplifier. 

Absolute Maximum Ratings

Parameter Symbol Min Max Unit
Storage Temperature Ts -40 85 °C
Operating Case Temperature TOP 0 70 °C
Power Supply Voltage Vcc -0.5 3.6 V
Relative Humidity (non-condensation) RH 0 85 %
Damage Threshold, each Lane THd 4.5   dBm

Recommended Operating Conditions

Parameter Symbol Min Typical Max Unit
Operating Case Temperature TOP 0   70 °C
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 with (OM3 MMF) D_MMF     150 m
Link Distance (SMF) D_SMF     2 km

Electrical Characteristics

Parameter Symbol Min Typical Max Unit Notes
Power Consumption       3.5 W  
Supply Current Icc     1.1 A  
Transceiver Power-on Initialization Time       2000 ms 1

Optical Characteristics

Parameter Symbol Min Typical Max Unit Notes
Wavelength Assignment L0 1264.5 1271 1277.5 nm  
L1 1284.5 1291 1297.5 nm
L2 1304.5 1311 1317.5 nm
L3 1324.5 1331 1337.5 nm

Digital Diagnostic Functions

Parameter Symbol Min Max Unit Notes
Temperature monitor absolute error DMI_Temp -3 3 °C Over operating temperature range
Supply voltage monitor absolute error DMI_VCC -0.1 0.1 V Over full operating range
Channel RX power monitor absolute error DMI_RX_Ch -2 2 dB 1
Channel Bias current monitor DMI_Ibias_Ch -10% 10% mA  
Channel TX power monitor absolute error DMI_TX_Ch -2 2 dB 1

Transmitter Electro-optical Characteristics (each Lane)

Parameter Symbol Min   Typical  Max Unit Notes
Single-ended Input Voltage Tolerance (Note 1)   -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 190   700 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
Total Average Launch Power (for SMF) PT,SMF     8.3 dBm  
Total Average Launch Power (for MMF) PT,MMF     9.5 dBm  
Average Launch Power, each Lane (for SMF) PAVG, SMF -7   2.3 dBm  
Average Launch Power, each Lane (for MMF) PAVG, MMF -5   3.5 dBm  
OMA, each Lane (for SMF) POMA, SMF -6   3.5 dBm 2
OMA, each Lane (for MMF) POMA, MMF -4   4.5 dBm  
Difference in Launch Power between any Two Lanes (OMA) Ptx,diff     6.5 dB  
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane   -6.8     dBm  
TDP, each Lane  TDP     2.6 dB  
Extinction Ratio  ER 3.5     dB  
Relative Intensity Noise  RIN     -128 dB/Hz 12dB reflection
Transmitter Reflectance   RT   -12 dB
Average Launch Power OFF Transmitter, each Lane Poff     -30 dBm  
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3} {0.23,0.34,0.43,0.27,0.35, 0.4}

Receiver Electro-optical Characteristics (each Lane)

Parameter Symbol Min Typical Max Unit Notes
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 300   850 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  
Eye Mask Coordinates {X1, X2 , Y1, Y2} 0.29, 0.5 150, 425 UI  mV Hit Ratio = 5x10-5
Damage Threshold, each Lane THd 4.5     dBm 1
Total Average Receive Power (for SMF)       8.3 dBm  
Total Average Receive Power (for MMF)       9.5 dBm  
Average Receive Power, each Lane (for SMF)   -11.7   2.3 dBm  
Average Receive Power, each Lane (for MMF)   -7   3.5 dBm  
Receiver Reflectance RR     -26 dB  
Receive Power (OMA), each Lane (for SMF)       3.5 dBm  
Receiver Power (OMA), each Lane (for MMF)       4.5 dBm  
Receiver Sensitivity (OMA), each Lane (for SMF) SENSMF     -11.5 dBm  
Receiver Sensitivity (OMA), each Lane (for MMF) SENMMF     -10.5 dBm  
Difference in Receive Power between any Two Lanes (OMA) Prx,diff     7.5 dB  
LOS Assert LOSA -28     dBm  
LOS Deassert LOSD     -15 dBm  
LOS Hysteresis LOSH 0.5     dB  
Receiver Electrical 3 dB upper Cutoff Frequency, each Lane Fc     12.3 GHz  

Pin Descriptions

PIN Logic Symbol Name/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-LX4 OPCS-X02-13-CB 3.3V 0°C to 70 °C
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