Alpha Bridge AQSFP28-100G-eLR4

Features

  • Hot pluggable QSFP28 MSA form factor
  • Compliant to IEEE 3ba 100GBASE-LR4
  • Digital diagnostic monitoring support
  • Hot pluggable 38-pin electrical interface
  • Transmitter cooled 4x25Gb/s LAN WDM DFB TOSA (1295.56, 1300.05,1304.58, 1309.14nm)
  • Receiver 4x25G PIN ROSA
  • Maximum power consumption 4W
  • LC duplex connector
  • Supports 1Gb/s bit rate
  • Up to 20km reach for 652 SMF
  • Commercial case temperature range of 0°C to 70°C
  • Single 3V power supply
  • RoHS-6 compliant

Application

  • 100GBASE-LR4 Ethernet Links
  • Infiniband QDR and DDR interconnects
  • Datacenter and Enterprise networking

Description

This product is a 100Gb/s transceiver module designed for optical communication applications compliant with 100GBASE-LR of the IEEE 802.3ba standard. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module demultiplexes a 100Gb/s optical input into 4 channels of LAN WDM optical signals and then converts them to 4 outputs of electrical data.

The central wavelengths of the 4 LAN WDM channels are 1295.56, 1300.05, 1304.58, and 1309.14 nm, members of the LAN WDM wavelength grid defined in IEEE 802.3ba. The high-performance cooled LAN WDM DFB transmitters and high-sensitivity PIN receivers provide superior performance for 100Gigabit Ethernet applications up to 20km links and are compliant with the optical interface with 100GBASE-LR4 requirements specified in IEEE 802.3ba Clause 88.

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 RH 0   85 %  
Damaged Threshold, each Lane THd 5.5     dBm  

Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Units Note
Supply Voltage Vcc 3.135 3.3 3.465 V  
Case Temperature Top 0   70 °C  
Data Rate, each lane     25.78125   Gb/s  
Data Rate Accuracy   -100   100 ppm  
Control Input Voltage-High   2   Vcc V  
Control Input Voltage-Low   0   0.8 V  
Link Distance with G.652 D 0.002   20 km  

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

Optical Characteristics

Parameter Symbol Min. Typ. Max. Units Note
Transmit wavelengths L0 1294.53 1295.56 1296.59 nm  
L1 1299.02 1300.05 1301.09 nm
L2 1303.54 1304.58 1305.63 nm
L3 1308.09 1309.14 1310.19 nm
Transmitter (each Lane)
Side Mode Suppression Ration SMSR 30     dB  
Total Average Launch Power PT   10.5 dBm  
Average Launch Power, each lane PAVG 0 4.5 dBm  
OMA, each lane POMA 0.5 4.5 dBm 1
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each lane   -2.3     dBm  
TDP, each lane TDP   2.2   dB  
Extinction Ratio ER 4     dB  
Difference in Launch Power between any Two Lances (OMA) Ptx,diff       5 dB  
RIN20OMA RIN       -130 dB/Hz  
Optical Return Loss Tolerance TOL       20 dB  
Transmitter Reflectance RT       -12 dB  
Average Launch Power OFF Transmitter, each lane Poff       -30 dBm  
Eye Mask (X1,X2,X3,Y1,Y2,Y3) {0.25,0.4,0.45,0.25,0.28,0.4} 2
Receiver
Damage Threshold, each lane THd 5.5     dBm 3
Average Receiver Power, each lane   -12.6 4.5   dBm  
Receiver Power (OMA), each lane     4.5   dBm  
Receiver Sensitivity (OMA), each lane SEN   -8.6   dBm  
Stressed Receiver Sensitivity (OMA),each lane     -6.8   dBm 4
Receiver Reflectance RR   -26   dB  
Difference in Receiver Power          
between any Two Lanes (OMA) Prx,diff   5.5   dB  
LOS Assert LOSA -30     dBm  
LOS Deassert LOSD   -13 dBm  
LOS Hysteresis LOSH 0.5     dB  
Receiver Electrical 3 dB upper Cutoff Frequency, each lane Fc     31 GHz  
Conditions of Stress Receiver Sensitivity Test (Note 5)
Vertical Eye Closure Penalty, each lane     1.8   dB  
Stressed Eye J2 Jitter, each lane     0.3   UI  
Stressed Eye J9 Jitter, each lane     0.47   UI  

Electrical Characteristics

Parameter Symbol Min. Typ. Max. Units Note
Power Consumption       4 W  
Supply Current Icc     1.21 A  
Transmitter (each Lane)
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 CEI-28G-VSR Equation 13-19 dB
Common Mode to Differential conversion and Differential to Common Mode conversion (SDC11, SCD11) TP1 See CEI-28G-VSR Equation 13-20 dB
Stressed Input Test TP1a See CEI- 28G-VSR Section 13.3.11.2.1
Receiver (each Lane)
Differential Voltage pk-pk TP4     900 mV  
Common Mode Voltage (Vcm) TP4 -350   2850 mV 1
Common Mode Noise, RMS TP4     17.5 mV  
Differential Termination Resistance Mismatch TP4     10 % At 1MHz
Differential Return Loss (SDD22) TP4 See CEI- 28GVSR Equation13-21
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     -2 dB 2
Transition Time, 20 to 80% TP4 9.5        
ps Vertical Eye Closure (VEC) TP4   5.5   dB  
Eye Width at 10-15 probability (EW15) TP4 0.57     UI  
Eye Height at 10-15 probability (EH15) TP4 228     mV  

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

Model Number Part Number Voltage Temperature
AQSFP28-100G-eLR4 OPCW-S20 -13-CBD 3.3V 0°C to 70 °C
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