How to measure the pin timings of an optical module
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These values can be measured during Design Validation Testing (DVT), by grabbing a population of transceivers and measuring Tx and Rx propagation delays at corners and several times after link re-start conditions. A solution for accurately measuring the Latency of PAM4 optical modules is required. And as transmission data rates in optical modules approach 100 and 400 Gbps, designers must consider the need to monitor and control the components within these modules – such as the photodiodes that receive and transmit optical information. The key performance indicators of the optical module can be measured from two aspects: the optical module transmitting end and the optical module receiving end. Optocoupler has many part number, different part number has different output type so before checking it has to use part number to research with datasheet and.