Description

The MAS3507D-G10 is a single-chip MPEG layer 2/3 audio decoder designed for audio broadcast or memory-based playback applications. It is highly suitable for portable electronics due to its embedded memories, embedded DC/DC up-converter, and low power consumption. The MAS3507D-G10 supports the MPEG 1 standard, including layer 3 with compression rates of approximately 12:1 for mono and stereo signals while maintaining CD audio quality. It also supports layer 2 compression, widely used in DVB, ADR, and DAB, which achieves a compression ratio of 8:1 offering CD quality.

Specifications and features

• Serial asynchronous MPEG bit stream input (SDI)
• Parallel (PIO-DMA) Input
• Broadcast and multimedia operation mode
• Automatic locking to given data rate in broadcast mode
• Data request triggered by 'demand signal' in multimedia mode
• Output audio data delivered via an I2S bus (SDO)
• Digital volume, stereo channel mixer, Bass, Treble controls
• Output sampling clocks generated and controlled internally
• Possibility of accessing ancillary data via I2C interface
• Status information accessible via PIO pins or I2C
• CRC Error and MPEG Frame Synchronization Indicators at Pins in serial input mode
• Power management for reduced power consumption at lower sampling frequencies
• Low power dissipation (30 mW @ fs ≤ 12 kHz, 46 mW @ fs ≤ 24 kHz, 86 mW @ fs ≤ 24 kHz @ 2.7 V)
• Supply voltage range: 1.0 V to 3.6 V due to built-in DC/DC converter (1-cell/2-cell battery operation)
• Adjustable power supply supervision
• Power-off function
• Additional functionality achievable via download software (CELP voice Decoder, ADPCM encoder/decoder)

Application Scenarios

The MAS3507D-G10 is typically used in audio broadcast systems, memory-based playback devices, and portable electronics. It can be applied in various multimedia devices such as radios, digital audio players, and sound recording systems. With its low power consumption and compact size, it is particularly suitable for battery-operated devices and portable audio devices.

Comparison

• Single-chip design for compact and efficient audio decoding
• Supports MPEG layer 2/3 audio compression for high-quality audio playback
• Low power consumption for extended battery life
• Embedded memories and DC/DC up-converter for portable electronics
• Provides various audio controls and features for enhanced audio experiences
• Flexible input options and output formats for versatile connectivity

• May require additional download software for added functionality
• Power management may be limited at higher sampling frequencies