[Sunplus Technology Co., Ltd.]

Description
The SPCA751A is a single chip signal processor optimized for MPEG audio decoding and voice recording. It is developed to achieve a better performance/cost ratio for MPEG audio players.
The SPCA751A is especially designed for standalone audio players, the system controller can easily carry out the MPEG audio decoding process by the use of a general serial IO/control interface for MPEG bit stream in/out and playback control.
Decoded audio PCM data are output to external DAC through a programmable normal/I2S DAC interface, such that most of common audio DACs can be cooperated with SPCA751A to meet different customers requirements.

Features
• Single chip MPEG audio decoder
   - Conforming to MPEG1/MPEG2 audio layer 2/3
   - Extension to MPEG lower sampling rates
• Digital sound control
   - Digital volume control
   - Stereo/Mono channel select
   - Digital sound equalizer
• Internal auto-generate audio clock
   - Sampling frequency from 8 kHz up to 48 kHz
• Programmable audio DAC interface
   - Support both normal and I2S audio DAC formats
   - Audio clock polarity programmable
   - Internal auto-generated oversampling clock for DAC
   - Accept external audio clock for sampling rate control
• Serial data IO and control interface
   - Easy for the host processor to command
• Low power dissipation
• PLL embedded
   - Require only 16.934MHz crystal, resistors, and capacitors to supply the system clock
• Built-in Digital Recording option
   - Embedded 10-bit 8 kHz audio ADC
   - SACM_S480 recording with 4.8 kbit/sec
   - SACM_S3200 recording with 32 kbit/sec
• Device Parameter
   - Supply voltage : 3.0 ~ 3.6 volts
   - IO interface : 5 volts tolerance, TTL compatible
   - Package : 44-pin LQFP
   - Power consumption: less than 150 mW @ 3.6 volts