产品概述
该产品是一款100Gb/s收发模块，专为光通信应用设计，符合IEEE P802.3ba标准中的100GBASE-4WDM-10标准。该模块将4个输入通道的25Gb/s电数据转换为4个CWDM光信号通道，然后将其复用为单一通道，实现100Gb/s的光传输。接收端反之，模块将100Gb/s的光输入解复用成4个CWDM光信号通道，然后转换为4个输出通道的电气数据。
4个CWDM信道的中心波长为1271、1291、1311和1331纳米，均为IEEE 802.3ba定义的CWDM波长网格成员。高性能冷却CWDM DFB发射器和高灵敏度PIN接收器为100吉比特以太网应用（最高可达10公里链路）提供卓越性能。
该产品设计采用了符合QSFP+多源协议（MSA）的形态设计、光电连接和数字诊断接口。它被设计以应对最严苛的外部工作条件，包括温度、湿度和电磁干扰。
产品参数
4通道全双工收发模块
每通道最高26Gbps传输数据速率
4个26Gb/s基于DFB的CWDM冷却发射机
4通道PINROSA+接收和发射通道均有内部CDR电路
低功耗<4W
热插拔QSFP
G.652 SMF可达10km
双工LC
3.3V电源电压
符合RoHS标准（无铅）
机箱工作温度
商用温度：0 ~ +70°C
工业温度：-40 ~ +85°C
我们的优势
技术过硬，经验丰富
自主研发 匠心智造，可定制化需求
进口芯片 优质方案，性能稳定
全面兼容 资深人才解决技术问题
DDM数字诊断 实时监测模块状态
专项测试 实测各项性能合格达标
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
| Supply Voltage | Vcc | -0.3 | 3.6 | V |
| Input Voltage | Vin | -0.3 | Vcc+0.3 | V |
| Storage Temperature | Tst | -60 | 95 | ºC |
| Case Operating Temperature | Top | 0 | 85 | ºC |
| Humidity(non-condensing) | Rh | 5 | 85 | % |
| Damage Threshold, each Lane | TH | 5.5 | dBm |
Recommended Operating Conditions
| Parameter | Symbol | Min | Typical | Max | Unit |
| Supply Voltage | Vcc | 3.13 | 3.3 | 3.47 | V |
| Operating Case temperature | Tca | 0 | 85 | ºC | |
| Data Rate Per Lane | fd | 25.78125 | Gbps | ||
| Humidity | Rh | 5 | 85 | % | |
| Power Dissipation | P | 4 | W | ||
| Link Distance with G.652 | D | 0.002 | 20 | km |
Electrical Specifications
| Parameter | Symbol | Min | Typical | Max | Unit |
| Power Consumption | P | 4 | W | ||
| Supply Current | Icc | 1.06 | A | ||
| Transceiver Power-on Initialization Time | 2000 | ms | |||
| Transmitter(each Lane) | |||||
| Single-ended Input Voltage Tolerance | -0.3 | 4.0 | V | ||
| AC Common Mode Input Voltage Tolerance | 15 | mV | |||
| Differential Input Voltage | 50 | mVpp | |||
| Differential Input Voltage Swing | Vin | 900 | mVpp | ||
| Differential Input Impedance | Zin | 90 | 100 | 110 | Ohm |
| Receiver(each Lane) | |||||
| Single-ended Output Voltage | -0.3 | 4.0 | V | ||
| AC Common Mode Output Voltage | 7.5 | mV | |||
| Differential Output Voltage Swing | Vout | 300 | 850 | mVpp | |
| Differential Output Impedance | Zout | 90 | 100 | 110 | Ohm |
Note：Power-on Initialization Time is the time from when the power supply voltages reach and remain above the minimum recommended operating supply voltages to the time when the module is fully functional.
Optical Characteristics
Table 3 – Optical Characteristics
| QSFP28 100GBASE-4WDM-10 | |||||||||
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | |||
| Lane Wavelength | 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 | |||||
| Transmitter | |||||||||
| SMSR | SMSR | 30 | dB | ||||||
| Total Average Launch Power | PT | 8.5 | dBm | ||||||
| Average Launch Power,each Lane | PAVG | -6.5 | 2.5 | dBm | |||||
| OMA, each Lane | POMA | -4 | 2.5 | dBm | 1 | ||||
| Difference in Launch Power between any Two Lanes (OMA) | Ptx,diff | 6 | dB | ||||||
| Launch Power in OMA Kminus Transmitter and Dispersion Penalty (TDP), each Lane | -5 | dBm | |||||||
| TDP, each Lane | TDP | 3 | dB | ||||||
| Extinction Ratio | ER | 3.5 | dB | ||||||
| RIN20OMA | RIN | -130 | dB/Hz | ||||||
| Optical Return Loss Tolerance | TOL | 20 | dB | ||||||
| Transmitter Reflectance | RT | -20 | dB | ||||||
| Eye Mask coordinates:X1, X2, X3, Y1, Y2, Y3 | {0.31, 0.4, 0.45, 0.34, 0.38, 0.4} | 2 | |||||||
| Average Launch Power OFF Transmitter, each Lane | Poff | -30 | dBm | ||||||
| Receiver | |||||||||
| Damage Threshold, each Lane | THd | 3.5 | dBm | 3 | |||||
| Total Average Receive Power | 10.5 | dBm | |||||||
| Average Receive Power, each Lane | -13 | 2.5 | dBm | ||||||
| Receive Power (OMA), each Lane | 2.5 | dBm | |||||||
| Receiver Sensitivity (OMA), each Lane | SEN | -11.5(1E-12) | -11.5(5E-5) | dBm | |||||
| Stressed Receiver Sensitivity (OMA), each Lane | -8.6(5E-5) | dBm | 4 | ||||||
| Difference in Receive Power between any Two Lanes (OMA) | Prx,diff | 5.5 | dB | ||||||
| LOS Assert | LOSA | -18 | dBm | ||||||
| LOS Deassert | LOSD | -15 | dBm | ||||||
| LOS Hysteresis | LOSH | 0.5 | 3.0 | 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 | 5 | ||||||
| Stressed Eye J2 Jitter, each Lane | 0.3 | UI | |||||||
| Stressed Eye J9 Jitter, each Lane | 0.47 | UI | |||||||
Note：
- Even if the TDP < 1 dB, the OMA min must exceed theminimum valuespecified here.
- See Figure 4 below.
- The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal having this power level on one lane. The receiver does not have to operate correctly at this input power.
- Measured with conformance test signal at receiver inputfor BER = 5E-5
- Vertical eye closure penalty and stressed eye jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver.
Mechanical Dimensions
功率和波长测试
测试信号发射强度和波长，确保接收机的信号解码能力，以及从发射机到接收机的波长保持一致。
流量测试
测试误码率、丢包率，使其满足相应标准，保证收发器的性能。
光学性能测试
测试收发器的眼图情况、接收灵敏度、消光比、波长、发光、收光、电流、电压等，确保信号传输的质量、稳定性和可靠性。
端面检测
检查收发器的端面并保持其清洁，以实现更稳定的数据传输、更优异的性能及更长的使用寿命。
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