PIC32 USB数字音频附属开发板展示了一个使用PIC32微控制器的16/24位数码立体声音频开发平台，它可用于 16/24 位立体声音频播放和录制高达 48 kHz 采样率。This accessory board is powered by the USB Host and can be used with any personal computer (PC), tablet, gaming station, or mobile device that supports the USB Audio Device Class. The digital audio stream is transferred over USB isochronous transfers. The PIC32 USB Digital Audio Accessory Board features the PIC32 MCU, which has a USB module with Host and Device capability, SPI module with Audio Mode that supports I2S, LJ, RJ, DSP/PCM modes, and a flexible audio reference clock output generation module that can be used as time base for the external codec or Digital-to-Analog Converter (DAC).Key Features:
PIC32MX250F128B MCU: 40 MHz, 128 KB of program memory and 32 KB of RAM
PIC32 I2S support (LJ, RJ, DSP/PCM modes supported) – all modes can be 16/24-bit
PIC32 reference clock output for codec master clock
Audio codec (AK4645A) with up to 48 kHz sampling rate and 16/24-bit resolution
Supported codec-based audio processing features:
o 5-band equalizero Analog output mixingo Stereo separation emphasis and wind-noise filteringo Auto-level control
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2012-08-15
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