SAA2521 Просмотр технического описания (PDF) - Philips Electronics

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SAA2521

Masking threshold processor for MPEG layer 1 audio compression applications

Philips Electronics 

Philips Semiconductors

Masking threshold processor for MPEG

layer 1 audio compression applications

Preliminary specification

SAA2521

FEATURES

• Stereo or 2-channel mono encoding

• Status may be read continuously

• Microcontroller interface

• I2S-interfaces

• Allocation algorithm including optional emphasis

correction (for 44.1 kHz)

• Reduced power consumption

• 4 V nominal operating voltage capability.

GENERAL DESCRIPTION

The SAA2521 performs the adaptive allocation and

scaling function for calculating the masking thresholds and

sub-band sample accuracy in MPEG layer 1 applications.

The SAA2521 is intended for use in conjunction with the

stereo filter codec SAA2520.

ORDERING INFORMATION

EXTENDED TYPE

NUMBER

SAA2521GP

PINS

44

Note

1. SOT205-1; 1996 August 23.

PIN POSITION

QFP

PACKAGE

MATERIAL

plastic

CODE

SOT205AG(1)

August 1993

2

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