MAS 3587F
Short Information
MAS 3587F
MPEG 1/2 Layer 3 Encoder/Decoder (PLQFP64 or LFBGA81 Package)
The MAS 3587F is a single-chip MPEG layer 3 audio encoder/decoder designed for use in portable memory-based recording/playback applications. The MAS 3587F contains the DSP engine with embedded
RAM and ROM. It provides flexible digital interfaces for serial and SP/DIF audio data input and output.
The MAS 3587F integrates power management functions and two DC/DC converters for single cell power
supply. A high-quality stereo digital-to-analog converter and a stereo analog-to-digital converter on chip
provide the analog functions required in an advanced portable audio recorder.
Features:
– Single-chip MPEG 1/2 Layer 3 audio encoder/decoder
– MPEG 1/2 Layer 3 encoding at various sample frequencies
– Encoding with adaptive bit rates (variable bit-rate)
– ISO compliant MPEG 1/2 Layer 2/3 decoder
– Integrated high-quality D/A converters
– Integrated A/D converters
– Microphone amplifier
– Flexible interfaces: SP/DIF, serial, parallel, I2C
– All clocks generated on-chip
– Audio features: volume, mute, bass, treble, automatic gain control
– Power management functions, built-in DC/DC converters, low power consumption
– Status, ancillary information accessible via I2C
CLKO
I2S audio data
input/output
/6/
MAS 3587F
/3/
PIO
compressed
audio bitstream
/8+5/
I2C
serial control
/2/
DAC
stereo DA converter
/2/
SP/DIF
ADC
Fig. 1: Block diagram of the MAS 3587F
Oct/2000
/3/
Serial In/Out
I2S
RISC DSP Core
SP/DIF
input/output
/2/
electret
microphone input
/1/
stereo line-in
/2/
DC/DC
Converter
DC/DC
Converter
Clock
Synthesizer
