MSM9565

• Built-in VICS-supporting descrambler
• Built-in two receive channels including main channel and sub-channel (receives both VICS and D-GPS simultaneously)
• 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: 3.0 V to 3.6 V
• Package:44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name: MSM9565GA)

The MSM9565 is an IC which demodulates FM character multiplex signals in the DARC (Data Radio Channel)*¹ format to obtain digital data. The MSM9565 operates at 3.3 V.

The MSM9565 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 of MSM9565 can easily be constructed.

The FM multiplex demodulation ICs MSM9565, 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 MSM9565 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 that support VICS (Vehicle Information and Communication System), which started its service in 1996.

*1 DARC is a registered trademark of NHK Engineering Services.
Any manufacturer who has a contract with NHK Engineering Services can produce and sell electronic equipment utilizing the DARC technology.
Any manufacturer who has a contract with NHK Engineering Services and VICS Center can produce and sell electronic equipment utilizing the VICS technology.