MPEG 1/2 Layer 2/3 Audio Decoder The MAS3507D is a digital audio decoder IC manufactured by MICRONAS. Below are the specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** MICRONAS
- **Type:** Digital Audio Decoder IC
- **Package:** PLCC-44 (Plastic Leaded Chip Carrier)
- **Power Supply Voltage:** 3.3V (typical)
- **Operating Temperature Range:** -40°C to +85°C
- **Interface:** Serial (I²S, SPI)
- **Supported Formats:** MPEG Layer 2 and Layer 3 (MP3) decoding
- **Sampling Frequencies:** 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz
- **Bit Rates Supported:** 8 kbps to 384 kbps (MP3)
### **Descriptions:**
The MAS3507D is a dedicated MPEG audio decoder chip designed for digital audio applications. It integrates a high-performance DSP core capable of decoding MPEG Layer 2 and Layer 3 (MP3) audio streams. The IC is commonly used in portable audio players, car audio systems, and other digital audio devices requiring compressed audio decoding.
### **Features:**
- **On-Chip DSP:** Efficient MPEG audio decoding (Layer 2 and Layer 3).
- **Low Power Consumption:** Optimized for battery-powered applications.
- **Integrated Memory:** Includes on-chip RAM and ROM for firmware storage.
- **Flexible Interface:** Supports I²S and SPI for communication with external controllers.
- **Built-in DAC Control:** Can interface with external digital-to-analog converters (DACs).
- **Error Concealment:** Handles bitstream errors gracefully for improved playback quality.
- **Standalone Operation:** Can function with minimal external components.
This information is based solely on the documented specifications and features of the MAS3507D by MICRONAS.
