SAA2022GP Просмотр технического описания (PDF) - Philips Electronics

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SAA2022GP

Tape formatting and error correction for the DCC system

Philips Electronics 

Philips Semiconductors

Tape formatting and error

correction for the DCC system

Product specification

SAA2022

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.

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.

ORDERING INFORMATION

EXTENDED TYPE

NUMBER

SAA2022GP

PINS

64

PIN POSITION

QFP(1)

PACKAGE

MATERIAL

plastic

CODE

SOT208A

Note

1. When using reflow soldering it is recommended that the Dry Packing instructions in the “Quality Reference

Pocketbook” are followed. The pocketbook can be ordered using the code 9398 510 34011.

February 1994

2

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