Datasheet Summary
DIGITAL FILTER FOR PACT DISC DIGITAL AUDIO SYSTEM
GENERAL DESCRIPTION
The SAA7220 is a stereo interpolating digital filter designed for the pact Disc Digital Audio system. For descriptive purposes, the SAA7220 is referred to as the B-chip and the SAA7210 as the A-chip.
Features
- 16-bit serial data input (two's plement)
- Interpolated data replaces erroneous data samples
- -12 dB attenuation via the active LOW attenuation input control (ATSB)
- Smoothed transitions before and after muting
- Two identical finite impulse response transversal filters each with a sampling rate of four times that of the normal digital audio data
- Digital audio output of 32-bit words...