MSM9563 Datasheet, PDF (1/10 Pages) OKI electronic componets – IC for FM Multiplex Data Demodulation

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MSM9563
IC for FM Multiplex Data Demodulation
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GENERAL DESCRIPTION
The MSM9563 is an IC which demodulates FM character multiplex signals in the DARC (Data Radio
Channel)^*1 format to obtain digital data. The MSM9563 operates at 3 V.
The MSM9563 contains on one chip a band pass filter using a switched capacitor filter (SCF) and a
group of circuits including frame memory, a frame synchronization circuit, and an error correction
circuit.
By connecting an external FM receiver and memory for temporary data storage, and microcontroller,
a system for obtaining digital data can easily be constructed.
The FM multiplex demodulation ICs, the MSM9500-series devices, are configured with minimum
functions; so they will, by changing the software of the external microcontroller, be able to respond
flexibly to the many FM multiplex broadcast services that are going to come about in the future.
The MSM9563 is best suited to radios and information processing devices that support DARC FM
multiplex broadcasting. It is also best suited to car radios and car navigation systems.
*1 DARC is a registered trademark of NHK Engineering Services.
Note that a contract needs to be made with NHK Engineering Service if a manufacturer produces/
sells electronic equipment utilizing the DARC technology.
FEATURES
• Built-in two receive channels including main channel and sub-channel
(one of two FM stations can be selected)
• Pin compatible with MSM9553/MSM9555
• Internal frame memory enables automatic error correction.
• Built-in bandpass filter (SCF)
• Built-in block synchronization circuit and frame synchronization circuit
• Setting of the number of synchronization protection steps can be changed.
• Data clocks are regenerated by digital PLL.
• 1T delay detection
• Built-in vertical and horizontal error correction circuits
• Built-in layer 4 and layer 2 CRC processing circuits
• Parallel interface with microcontroller
• Clock output for external devices (64 kHz to 8.192 MHz variable)
• Compatible with the international standard frame formats A (real time block also supported),
B, C
• Power supply: 2.7 V to 3.6 V
• Package:
44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name: MSM9563GA)
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