Alpha Bridge AQSFP28-100G-DR1

Features

  • QSFP28 MSA compliant
  • Support 125Gb/s
  • 100G Lambda MSA 100G-DR Specification compliant
  • Up to 500m transmission on single mode fiber (SMF) with FEC
  • 4x25G electrical interface (OIF CEI-28G-VSR)
  • Maximum power consumption 4W
  • LC duplex connector
  • Commercial case temperature range of 0°C to 70°C
  • Single 3V power supply
  • RoHS compliant

Application

  • 100G Ethernet
  • Data Center Interconnect
  • Enterprise networking

Description

This product is a transceiver module designed for 500m optical communication applications. The module incorporates one channel optical signal, on 1310nm center wavelength, operating at 50Gbaud data rate. The transmitter path incorporates an EML Driver integrated in the DSP and a cooled EML together. On the receiver path, the input optical signal is coupled to a Pin photodiode detector. A DSP based gearbox is used to convert 4x25Gbps NRZ signals to 1x50Gbaud PAM4 signal. Also a 4-channel retimer and FEC block are integrated in this DSP. The electrical interface is compliant with IEEE 802.3cd and QSFP28 MSA in the transmitting and receiving directions, and optical interface is compliant to IEEE 802.3cd and 100G Lambda MSA with Duplex LC connector. The module has a maximum power consumption of 4.0W.

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSP28 Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.

Absolute Maximum Ratings

Parameter Symbol Min. Typ. Max. Units Note
Storage Temperature TS -40   85 °C  
Operating Case Temperature TOP 0   70 °C  
Maximum Supply Voltage Vcc -0.5   3.6 V  
Relative Humidity (Non-condensing RH 0   85 %  
Damaged Threshold THd 5.5     dBm  

Recommended Operating Conditions

Parameter Symbol Min Typical Max Unit Notes
Operating Case Temperature TOP 0   70 degC     
Power Supply Voltage VCC 3.135 3.3 3.465 V     
Electrical Data Rate, each Lane (NRZ)       25.78125   Gb/s     
Optical Data Rate (PAM4)        53.125   GBd     
Data Rate Accuracy     -100   100 ppm     
Pre-FEC Bit Error Ratio           2.4x10-4       
Post-FEC Bit Error Ratio           1x10-12      1
Control Input Voltage High     2   Vcc V     
Control Input Voltage Low     0   0.8 V     
Link Distance with G.652 D 0.002   500 m 2

Diagnostics Monitoring

Parameter Symbol Accuracy Unit Notes
Temperature monitor absolute error DMI_Temp ± 3 °C  
Supply voltage monitor absolute error DMI_VCC ± 0.1 V  
Channel RX power monitor absolute error DMI_RX_Ch ± 2 dB 1
Channel Bias current monitor DMI_Ibias_Ch ± 10% mA  
Channel TX power monitor absolute error DMI_TX_Ch ± 2 dB 1

Transmitter Electro-optical Characteristics (each Lane)

Parameter Test Point Min   Typical  Max Unit Notes
Power Consumption       4.5 W  
Supply Current Icc     1.36 A  
Overload Differential Voltage pk-pk TP1a 900     mV  
Common Mode Voltage (Vcm) TP1 -350   2850 mV 1
Differential Termination Resistance Mismatch TP1     10 % At 1MHz
Differential Return Loss (SDD11) TP1 See CEI28G-VSR Equation 13-19  dB
TP1 See CEI28G-VSR Equation 13-20 dB
Stressed Input Test TP1a See CEI28G-VSR Section 13.3.11.2.1 
Center Wavelength λt  1304.5   1317.5 nm  
Side Mode Suppression Ratio SMSR 30     dB  
Average Launch Power PAVG -2.4   4 dBm 2
Outer Optical Modulation Amplitude (OMAouter) POMA -0.3   4.2 dBm 3
Launch Power in OMAouter minus Transmitter and Dispersion Eye Closure (TDECQ)   1.3     dBm  
Transmitter and Dispersion Eye Closure for PAM4 (TDECQ) TDECQ     2.5 dB  
Extinction Ratio ER 5     dB  
RIN20OMA RIN     -136 dB/Hz  
Optical Return Loss Tolerance TOL     15.5 dB  
Transmitter Reflectance
Average Launch Power OFF Transmitter Poff     -15 dBm  

Receiver Electro-optical Characteristics (each Lane

Parameter Symbol Min Typical Max Unit Notes
Differential Voltage, pk-pk TP4     900 mV  
Common Mode Voltage (Vcm) TP4 -350   2850 mV 1
Common Mode Noise, RMS
Differential Termination Resistance Mismatch TP4     10 %  At 1MHz
Differential Return Loss (SDD22) TP4 See CEI- 28G-VSR Equation 13-19  dB
Common Mode to Differential conversion and Differential to Common Mode conversion (SDC22, SCD22) TP4 See CEI- 28G-VSR Equation 13-21  dB
Common Mode Return Loss (SCC22) TP4     dB  2
Transition Time, 20 to 80% TP4 9.5 ps  
Vertical Eye Closure (VEC) TP4   dB  
Eye Width at 10-15 probability (EW15)
Eye Height at 10-15 probability (EH15) TP4 228     mV  
Center Wavelength λr 1304.5   1317.5 nm  
Damage Threshold THd 6.5     dBm 3
Average Receive Power   -5.4   4 dBm  
Receive Power (OMAouter)        dBm  
Receiver Sensitivity (OMAouter) SEN        -4.4 dBm for BER=2.4x10-4
Stressed Receiver Sensitivity (OMAouter) SRS        -1.9 dBm 4
Receiver Reflectance RR        -26 dB  
LOS Assert LOSA -30     dBm  
LOS Deassert LOSD        -15 dBm  
LOS Hysteresis LOSH 0.5     dB   
Conditions of Stress Receiver Sensitivity Test (Note 5)
Stressed Eye Closure for PAM4 (SECQ)     2.5   dB  

Pin Descriptions

Pin Symbol Name/Description Notes
1 GND Transmitter Ground 1
2 Tx2n Transmitter Inverted Data Input  
3 Tx2p Transmitter Non-Inverted Data output  
4 GND Transmitter Ground 1
5 Tx4n Transmitter Inverted Data Input  
6 Tx4p Transmitter Non-Inverted Data output  
7 GND Transmitter Ground 1
8 ModSelL Module Select  
9 ResetL Module Reset  
10 VccRx 3.3V Power Supply Receiver 2
11 SCL 2-Wire serial Interface Clock  
12 SDA 2-Wire serial Interface Data  
13 GND Receiver Ground 1
14 Rx3p Receiver Non-Inverted Data Output  
15 Rx3n Receiver Inverted Data Output  
16 GND Receiver Ground 1
17 Rx1p Receiver Non-Inverted Data Output  
18 Rx1n Receiver Inverted Data Output  
19 GND Receiver Ground 1
20 GND Receiver Ground 1
21 Rx2n Receiver Inverted Data Output  
22 Rx2p Receiver Non-Inverted Data Output  
23 GND Receiver Ground 1
24 Rx4n Receiver Inverted Data Output  
25 Rx4p Receiver Non-Inverted Data Output  
26 GND Receiver Ground 1
27 ModPrsl Module Present  
28 IntL Interrupt  
29 VccTx 3.3V power supply transmitter 2
30 Vcc1 3.3V power supply 2
31 LPMode Low Power Mode，not connect  
32 GND Transmitter Ground 1
33 Tx3p Transmitter Non-Inverted Data Input  
34 Tx3n Transmitter Inverted Data Output  
35 GND Transmitter Ground 1
36 Tx1p Transmitter Non-Inverted Data Input  
37 Tx1n Transmitter Inverted Data Output  
38 GND Transmitter Ground 1

Ordering Information AQSFP28-100G-DR1

  Model Number   Part Number  Voltage Temperature
AQSFP28-100G-DR1 OPCW-S40-13-CR 3.3V 0°C to 70 °C
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