In general, the \"electrical chip\" is the general term for the chip that needs to process electrical signals in the optical communication system, which generally includes the cross-resistance amplification chip (TIA), the limiting amplification chip (LA), the laser Driver chip (LD Driver), the clock data recovery chip (CDR), etc., and then extend a little. It also includes microcontroller (MCU) in optical communication module, high-speed modulator driver chip and so on.
The electrical signal processed by the chip is transmitted in the form of electricity, which is divided into two types of analog signals according to the strength of the current\/voltage, weak current and strong point, signal chain products are responsible for the processing of weak current, and power management products mainly process the strong point.