AT83SND2CMP3A1-7FTUL

Overview

The AT83SND2CMP3A1-7FTUL is a single-chip MP3 decoder and audio interface controller manufactured by Microchip Technology. It integrates an MPEG I/II-Layer 3 hardwired decoder supporting sampling frequencies of 48, 44.1, 32, 24, 22.05, and 16 kHz. The device features a 20-bit stereo audio DAC with 93 dB SNR, a mono audio power amplifier delivering 440 mW into an 8-ohm load, and a USB Rev 1.1 full-speed controller. It includes a built-in PLL for clock generation, MMC/SD card interfaces, and a standard UART. Operating conditions range from -40 °C to +85 °C, with digital supply voltages between 2.7 V and 3 V and power amplifier supply from 3.2 V to 5.5 V. The component is housed in a 100-pin CTBGA package.

Feature Summary

• Integrated MPEG I/II-Layer 3 hardware decoder with software-controlled volume and equalization
• Built-in 20-bit stereo DAC and mono power amplifier for direct headset and speaker driving
• USB Rev 1.1 full-speed controller for data transfer and file system management
• Supports MultiMediaCard and Secure Digital card interfaces for removable storage

Applications

• MP3 players and portable media devices
• Mobile phones and PDAs with multimedia capabilities
• Car audio and home audio multimedia systems
• Industrial background music and advertising equipment

Procurement Notes

Verify the specific suffix A1-7FTUL against the manufacturer's official documentation to confirm pinout, packaging, and environmental compliance details. Ensure that the operating voltage requirements for both the digital core and the power amplifier are compatible with the target system design before integration.

Selection Notes

Select this component for applications requiring a standalone MP3 decoding solution with integrated audio output stages. Consider the 100-pin CTBGA package constraints during PCB layout. Verify compatibility with the intended storage medium, such as NAND Flash or SD cards, and ensure the host controller can communicate via the available UART or USB interfaces.

Part Context

This part belongs to the AT83SND2CMP3 family of single-chip MP3 decoders. It is designed for remote-controlled MP3 player implementations in mobile phones, toys, and industrial applications. The device simplifies system design by handling file system operations and audio processing internally, reducing the burden on the host controller.

Replacement Considerations

Consult Microchip Technology for current alternative parts within the AT83SND2CMP3 series. Verify functional equivalence regarding decoder support, audio interface specifications, and package dimensions before substitution.