GENERAL DESCRIPTION

Performing the tape formatting and error correction functions for DCC applications, the SAA2022 can be used in conjunction with the PASC (SAA2002/SAA2012), tape equalization (SAA2032), read amplifier (TDA1317 or TDA1318) and write amplifier (TDA1316 or TDA1319) circuits to implement a full signal processing system.

FEATURES

• Integrated error correction encoder/decoder function with Digital Compact Cassette (DCC) optimized algorithms

• Control of capstan servo during recording and after recording by microcontroller

• Frequency and phase regulation of capstan servo during playback

• Choice of two Dynamic Random Access Memory (DRAM) types operating in page mode

• Scratch pad RAM area available to microcontroller in system DRAM

• Low power standby mode

• I2S interface

• Microcontroller interface for high-speed transfer burst rates up to 170 kbytes per second

• SYSINFO and AUXILIARY data flags on microcontroller interface

• Protection against invalid AUXILIARY data

• +4 V operating voltage capability.