Audio Development Board for PIC32 MCUs Microchip DM320011
Audio Development Board for PIC32 MCUs
Detailed Description
The audio development board for PIC32 (DM320011) provides developers a flexible platform for 24-bit audio record and playback, USB Digital Audio, MP3 Decode and Sample Rate Conversion.
The audio codec (U1) is a Wolfson WM8960.
The codec is of hi-fi quality with up to 24-bit resolution. The sampling rates supported are between 8 kHz to 48 kHz and includes an on-chip flexible PLL. The codec has a built-in headphone driver and a stereo Class D speaker driver. In addition, it has low-power consumption and offers a small foot print. On 32-bit microcontroller, the codec data interface is handled through the SPI module in Framed SPI mode. On 16-bit microcontroller, the codec data interface is handled through the DCI module. The control registers of the codec are configured over the I2C interface. The codec external clock is provided by a 12 MHz crystal oscillator.
The condenser microphone (MIC1) is available on the board for capturing audio. The microphone bias voltage is provided directly by the codec and is connected via Line Input 1 of the codec. The microphone bias voltage level and sensitivity are controlled via the codec registers. The microphone signal is presented as a mono signal to the application.
The line-in jack (Line IN) is available to interface to audio signal sources (such as CD players and musical instruments) that use line level ouputs.The line input signal is a stereo signal and is connected to Left Input 2 and Right Input 2 of the codec.
Key features include:
- On-board PIC32MX795F512 with 80 MIPS of performance, 512KB Flash and 128KB of RAM
- 24-bit Wolfson CODEC
- USB Type A interface
- On-board Microphone
- Headphone out and Line in
- High quality 2” Color LCD
- Pre-loaded demo code
- MFi Dock Edge Connector
Audio Development Board for PIC32 MCUs User Guide and Schematic
