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 AQSFP28-100G-DR1
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 AQSFP28-100G-DR1
Parameter | Symbol | Min. | Typ. | Max. | Units | Note |
Supply Voltage | Vcc | 3.135 | 3.3 | 3.465 | V | |
Case Temperature | Top | 0 | 70 | °C | ||
Electrical Data Rate, each Lane | 25.78125 | Gb/s | ||||
Optical Data Rate (PAM4) | 53.125 | Gb/s | ||||
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 |
Notes:
- FEC feature is embedded in the
- FEC required to be turned on to support maximum transmission
Diagnostics Monitoring AQSFP28-100G-DR1
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 |
Note:
- Due to measurement accuracy of different single mode fibers, there could be an additional +/-1 dB fluctuation, or a
+/- 3 dB total accuracy.
Optical Characteristics AQSFP28-100G-DR1
Parameter | Symbol | Min. | Typ. | Max. | Units | Note |
Center Wavelength | λt | 1304.5 | 1317.5 | nm | ||
Transmitter | ||||||
Side Mode Suppression Ration | SMSR | 30 | dB | |||
Average Launch Power, each lane | PAVG | -2.4 | 4 | dBm | 1 | |
OMA, each lane | POMA | -0.8 | 4.2 | dBm | 2 | |
Launch Power in OMAouter Minus TDECQ | -2.2 | dBm | For ER ≧4.5dB | |||
-1.9 | For ER ≦4.5dB | |||||
Transmitter and Dispersion eye Closure for PAM4 | TDECQ | 3.4 | dB | |||
TDECQ-10*log10 (Ceq) | 3.4 | dB | 3 | |||
Extinction Ratio | ER | 3.5 | dB | |||
RIN17.1 OMA | RIN | -136 | dB/Hz | |||
Optical Return Loss Tolerance | TOL | 15.5 | dB | |||
Transmitter Reflectance | RT | -26 | dB | |||
Transmitter Transition Time | 17 | ps | ||||
Average Launch Power OFF | Poff | -15 | dBm | |||
LOS Assert Level | LOSA | 50 | mV | 4 | ||
LOS De-assert Level | LOSD | 100 | mV | |||
Receiver | ||||||
Damage Threshold | Λr | 5 | dBm | 5 | ||
Average Receiver Powe | -5.9 | 4 | dBm | 6 | ||
Receiver Power (OMA) | 4.2 | dBm | ||||
Receiver Sensitivity (OMA) | SEN | Equation (1) | dBm | 7 | ||
Stressed Receiver Sensitivity (OMA) | SRS | -1.9 | dBm | 8 | ||
Receiver Reflectance | RR | -26 | dB | |||
LOS Assert | LOSA | -15 | dBm | 9 | ||
LOS De-assert | LOSD | -8.9 | dBm | |||
LOS Hysteresis | LOSH | 0.5 | dB | |||
Conditions of Stress Receiver Sensitivity Test (Note 10) | ||||||
Stressed Eye Closure for PAM4 (SECQ) | 3.4 | dB | ||||
SECQ-10*log10 (Ceq) | 3.4 | dB |
Notes:
- Average launch power (min) is informative and not the principal indicator of sign A transmitter with launch power below this value cannot be compliant; however, a value above this does not ensure compliance.
- Even if the TDECQ < 4dB fo ran extinction ratio of ≧5dB or TDECQ < 1.1dB for an extinction ratio of < 5dB, the
OMAouter (min), must exceed the minimum value specified here.
- Ceq is a coefficient defined in IEEE Std 3-2018 clause 121.8.5.3 which accounts for reference equalizer noise enhancement.
- Average receive power (min) is informative and not the principal indicator of signal A received power below this value cannot be compliant; however, a value above this does not ensure compliance.
- The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal having this power level on one The receiver does not have to operate correctly at this input power.
- Receiver sensitivity (OMAouter) (max) is informative and is defined for a transmitter with a value of SECQ up to 4dB. It should meet Equation (1), which is illustrated in Figure 4.
RS = max (-3.9, SECQ – 5.3) dBm
Where: RS is the receiver sensitivity.
SECQ is the SECQ of the transmitter used to measure the receiver sensitivity.
- Measured with conformance test signal at TP3 for the BER equal to 4×10-4.
- These test conditions are for measuring stressed receiver They are not characteristics of the receiver.
Electronical Characteristics AQSFP28-100G-DR1
Parameter | Symbol | Min. | Typ. | Max. | Units | Note |
Power Consumption | 4.0 | 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 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-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 | -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 |
Note:
- Vcm is generated by the Specification includes effects of ground offset voltage.
- From 250MHz to
Pin Descriptions AQSFP28-100G-DR1
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 |
Notes:
- GND is the symbol for signal and supply (power) common for the QSFP28 module. All are common within the module and all module voltages are referenced to this potential unless otherwise Connect these directly to the host board signal common ground plane.
- VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and shall be applied concurrently. Recommended host board power supply filtering is shown in Figure 3 below. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP28 transceiver module in any The connector pins are each rated for a maximum current of 1000mA.
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 |