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Semiconductor Components Industries, LLC, 2013
November, 2013
20131112V101E
http://onsemi.com
LC72717PW
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.
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.
Function
Adjustment-free 76kHz 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 circuit
On-chip frame memory and memory control circuit for vertical correction
7.2MHz crystal oscillator circuit
Two power saving modes: STNBY and EC STOP
Applications can use either a parallel CPU interface (DMA) or a CCB serial interface.
Supply voltage: 2.7V to 3.6V
Application Note
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing products, if you wish to use any such
products, please be sure to refer the datasheet, which can be obtained upon request.
CCB is ON Semiconductor® ’s original bus format. All bus addresses are managed
by ON Semiconductor® for this format.
CCB is a registered trademark of Semiconductor Components Industries, LLC.
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