Implementation of ASI Loop Output Circuit in DVB-IP Gateway
DVB-IP网关中ASI环出电路的实现

An implementation of the ASI loop output circuit in the DVB-IP gateway is introduced.The implementation which simply realizes the loop output of 270Mbps ASI transport stream is based on the chip PE- 65508,CLC014 and CLC006.The paper first mentions the features of ASI and SPI,then describes the circuit in detail, and gives out the test result at last.In the test,the loop output signal is amplified by 1.8 times.The loop output function is so strong that it can meet the requirements of re-transport after loop output and multilevel loop output.