CM108 查看數據表（PDF） - Unspecified

零件编号

产品描述 (功能)

生产厂家

CM108

High Integrated USB Audio I/O Controller

Unspecified 

CM108

Integration Dual DAC, Earphone Driver, ADC,

Microphone Booster, PLL, Regulator, and USB Transceiver

4. I²S INTERFACE

CM108 provide I2S interface for both playback and recording. External ADC, DAC, or DSP

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can be added to provide additional function in the USB audio system. CM108 sends out the

master clock (fixed at x256), LRCK (fixed at x64), and data clock. Therefore external ADC,

DAC, or DSP should be set at slave mode for I2S interface. Left channel of I2S bus is used for

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CM108 mono recording. Both I2S buses use 5V tolerant pad so they can be easily interfacing

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with 5V or 3.3V devices. Playback data is simultaneously sent to both DAC and I2S bus.

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Recording source (from ADC or from I2S bus) can be selected by ADSEL jumper pin.

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LRCK

SCLK

SDATA

Left Channel

MSB -1 -2

+2 +1 LSB

Right Channel

MSB -1 -2

+2 +1 LSB

Date: Nov/01/2004

- 10 -

Version: 1.5

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