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SAA2521 Datasheet Masking threshold processor for MPEG layer 1 audio compression applications

Manufacturer: Philips Semiconductors (now NXP Semiconductors)

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General Description

SAA2521 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.

CODE SOT205AG(1) August 1993 2 Philips Semiconductors Preliminary specification Masking threshold processor for MPEG layer 1 audio compression applications SAA2521 VDD handbook, full pagewidth SWS FS256 31 39 14,24,40 33 FDAF 34 INTERFACE COMPENSATION DELAY INTERFACE 32 FDAC SCL NODONE RESOL0 RESOL1 FDIR FRESET FSYNC SCALE TEST3 TEST4 20 21 22 37 36 35 38 15 16 CONTROL SAA2521 ALLOCATION AND SCALING CALCULATION LTDATA LTCNT1 LTCNT0 LTENA LTCLK CLK24 RESET PWRDWN 5 1 2 3 4 26 23 30 LT INTERFACE 11 7 8 9 10 LTDATAC LTCNT1C LTCNT0C LTENC LTCLKC 6,25,44 VSS MLB137 Fig.1 Block diagram.

Overview

INTEGRATED CIRCUITS DATA SHEET SAA2521 Masking threshold processor for MPEG layer 1 audio compression applications Preliminary specification File under Integrated Circuits, IC01 August 1993 Philips Semiconductors.

Key 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.

More Datasheets from Philips Semiconductors (now NXP Semiconductors)

Part Number Description
SAA2520 Stereo filter and codec for MPEG layer 1 audio applications
SAA2500 MPEG Audio Source Decoder
SAA2501 Digital Audio Broadcast DAB decoder
SAA2502 ISO/MPEG Audio Source Decoder
SAA2503 MPEG2 audio decoder
SAA2505H Digital multi-channel audio IC DUET
SAA2510 Video CD VCD decoder
SAA2003 Stereo filter and codec
SAA2013 Adaptive allocation and scaling for PASC coding in DCC systems
SAA2022 Tape formatting and error correction for the DCC system