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SAA2023

Philips
Part Number SAA2023
Manufacturer Philips
Description Drive processor for DCC systems
Published May 18, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET SAA2023 Drive processor for DCC systems Preliminary specification File under Integrated ...
Datasheet PDF File SAA2023 PDF File

SAA2023
SAA2023

Overview
INTEGRATED CIRCUITS DATA SHEET SAA2023 Drive processor for DCC systems Preliminary specification File under Integrated Circuits, IC01 May 1994 Philips Semiconductors Philips Semiconductors Preliminary specification Drive processor for DCC systems FEATURES • Operating supply voltage: 4.
5 to 5.
5 V • Low power dissipation: 260 mW at 5.
0 V • Single chip digital equalizer, tape formatting and error correction • 8-bit flash analog-to-digital converter (ADC) for low symbol error rate • Two switchable Infinite Impulse-Response (IIR) filter sections • 10-tap Finite Impulse-Response (FIR) filter per main data channel, with 8 bit coefficients, identical for all main channels • 10-tap FIR filter for the AUX channel • Analog and digital eye outputs • Interrupt line triggered by internal auxiliary envelope processing e.
g.
label, counter, and others • Robust programmable digital PLL clock extraction unit • Low power SLEEP mode • Slew rate limited Electromagnetic Compatibility (EMC) friendly output • Digital Compact Cassette (DCC) optimized error correction • Programmable symbol synchronization strategy for tape input data • Microcontroller control of capstan servo possible during playback and recording ORDERING INFORMATION PACKAGE TYPE NUMBER PINS SAA2023H SAA2023GP Note 80 80 PIN POSITION TQFP80(1) QFP80(1) MATERIAL plastic plastic SAA2023 • Frequency and phase regulation of capstan servo during playback • Choice of Dynamic Random Access Memory (DRAM) and Static Random Access Memory (SRAM) types for system Random Access Memory (RAM) • Scratch pad RAM for microcontroller in system RAM • Integrated interface for Precision Adaptive Sub-band Coding (PASC) data bus • Three wire microcontroller ‘L3’ interface • Protection against invalid auxiliary data • Seamless joins between recordings.
GENERAL DESCRIPTION The SAA2023 performs the drive processor function in the DCC system.
This function is built up of digital equalizer, error correction and tape formatting functions.
The digit...


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