MSM9563 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 kHz.
MSM9563 Key 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