SAA7346 - Shock absorbing RAM addresser

The SAA7346 can be used to make a CD player insensitive to shocks.

To do this, SAA7346 operates closely with a standard 1 Mbit or 4 Mbit DRAM.

Audio data is stored inside the DRAM and during shocks the data of the DRAM can be played.

• Absorbs shocks from x, y and z directions.
• Absorbs rotational shocks.
• Absorbs multiple shocks per second.
• Interfaces directly to compact disc decoders SAA7345, SAA7347 and SAA7370.
• Multi-speed I2S-bus input with single-speed I2S-bus output.
• Controls 1 or 4 MBit of external Dynamic Random Access Memory (DRAM).
• Easy serial interface for communication with common microcontrollers.
• Software selectable shock detectors.