LC72717PW

LC72717PW Mobile FM Multiplex Broadcast (DARC) Receiver IC Overview The LC72717PW is a data demodulation LSI for receiving FM multiplex broadcasts for mobile reception in the DARC format. This LSI includes an on-chip bandpass filter for extracting the DARC signal from the FM baseband signal. It also supports ITU-R recommended FM multiplex frame structures (methods A, A’, B, and C) and can implement a compact, multifunction DARC reception system. The LC72717PW’s package, pin assignment and electrical characteristics are same as the LC72715PW (VICS-LSI). Functionally, the LC72717PW is a product that VICS function is removed from the LC72715PW. The LC72717PW is also control-compatible with the LC72711LW. Note that a contract with the NHK Engineering System, Inc. may be required to produce DARC compatible products in case, please contact with the NHK Engineering System, Inc. Functions  Adjustment-free 76 kHz SCF bandpass filter  Supports all FM multiplex frame structures (methods A, A’, B and C) under CPU control.  MSK delay detection system based on a 1T delay.  Error correction function based on a 2T delay (in the MSK detection stage)  Digital PLL based clock regeneration function  Shift-register 1T and 2T delay circuits  Block and frame synchronization detection circuits  Functions for setting the number of allowable BIC errors and the number of synchronization protection operations.  Error correction using (272, 190) codes  Built-in layer 4 CRC code checking circui...