MAS3549F datasheet(6/92 Pages) MICRONAS

6 / 92 page

MAS 35x9F

DATA SHEET

June 30, 2004; 6251-505-1DS

Micronas

1.1. Features

Firmware

– MPEG 1/2 layer 2 and layer 3 decoder

– Extension to MPEG 2 layer 3 for low sampling rates

(“MPEG 2.5”)

– Extraction of MPEG Ancillary Data

– MPEG 2 AAC decoder (low-complexity profile)

– Micronas G.729 Annex A speech compression and

decompression

– Master or slave clock operation

– Adaptive bit rates (bit rate switching)

– Intelligent power management (processor clock is

dependent on sampling frequencies)

– SDMI-compliant security technology

– Stereo channel mixer

– Bass, treble, and loudness function

– Micronas Bass (MB)

– Automatic Volume Control (AVC)

Interfaces

– Two serial asynchronous interfaces for bit streams

and uncompressed digital audio

– Parallel handshake bit stream input

– Serial audio output via I2S and related formats

– S/PDIF data input and output

– Controlling via I2C interface

Hardware Features

– Two independent embedded DC/DC converters,

(e.g., for DSP and flash RAM supply)

– Low DC/DC converter start-up voltage (0.9 V)

– DC converter efficiency up to 95%

– Battery voltage monitor

– Low supply voltage down to 2.2 V

– Low power dissipation, e.g., 87 mW

(128kBit/s, 44.1 kHz, Headphone playback)

– High-performance RISC DSP core

– On-chip crystal oscillator

– Hardware power management and power-off func-

tions

– Microphone amplifier

– Stereo A/D converter for FM/AM-radio and speech

input

– CD quality stereo D/A converter

– Headphone amplifier

– Noise and power-optimized volume

– External clock or crystal frequency of 13...28 MHz

– Standby current < 10 µA

1.2. Features of the MAS 35x9F Family

Feature

3509

3519

3529

3539

3549

3559

Layer 3 Decoder

XXXX

G.729 Encoder/Decoder

AAC Decoder

MAS3549F 数据表(PDF) 6 Page - Micronas

MAS3549F 数据表(HTML) 6 Page - Micronas

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