MSM9563 Datasheet | LAPIS

DESCRIPTION The MSM9563 is an IC which demodulates FM character multiplex signals in the DARC (Data Radio Channel)- 1 format to acquire digital data. The MSM9563 operates at 3 V. In the DARC format, baseband signals at ordinary FM broadcasting frequencies are multiplexed with 16 kbps digital data which is L-MSK-modulated at 76 k Hz. The MSM9563 has a bandpass filter consisting of an SCF, frame synchronization circuit, and error correction circuit on a single chip. They allow a system for acquisition of digital data to be easily constructed by externally mounting an FM receiver tuner, microcontroller for control, and memory for temporary storage of data. The MSM9563, a FM multiplex demodulator, has a simple configuration, and is equipped with only necessary functions. By making changes to software for the external microcontroller, the MSM9563 meets the various requirements of FM multiplex broadcasting services to be offered in future. - 1 DARC is a registered trademark of NHK Engineering Services. Any manufacturer licensed by NHK Engineering Service can manufacture and sell products that utilize the DARC technology. FEATURES - Built-in two receive channels including main channel and sub-channel (one of two FM stations can be selected) - Internal frame memory enables automatic error correction. - Built-in bandpass filter (SCF) - Built-in block synchronization circuit and frame synchronization circuit - The number of synchronization protecting steps can be set - Regeneration of data clocks by digital PLL - 1T delay detector - Built-in error correcting circuit (Vertical/Horizontal) - Built-in layer-4 and layer-2 CRC processing circuit - International frame formats A (supporting a real time block), B, and C available - Microcontroller parallel interface - Clock output for external devices (64 k Hz to 8.192 MHz selectable) - Power source: 3.0 to 3.6 V - Package: 44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name: MSM9563GA) 1/14 BLOCK DIAGRAM FM multiplex signal...