CT7601 Audio USB Bridge : True 32 bits 768KHz 

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Key Features:  

2 playback port, and 1 record port

PLAY 0: 8-channel I2S, 6-channel DSD, 2-channel SPDIF

PLAY 1: 2-channel I2S, 2-channel DSD, 2-channel SPDIF

RECORD: 8-channel I2S, 6-channel DSD, 2-channel SPDIF

The clock systems are independent

I2S Interface

PLAY port supports standard/left justified format, master mode.

RECORD port supports standard/left justified, master/slave mode.

Audio transmission

PCM support up to 768K/32bit through USB, I2S, SPDIF ports.

DSD (PDM) support 1x/2x/4x/8x bandwidth through DSD(PDM) port.

DSD (Native) support 1x/2x/4x/8x bandwidth through USB, I2S, DSD(PDM), SPDIF ports.

DoP support 1x/2x/4x bandwidth through USB, I2S, SPDIF ports.

Interface

Up to 16 GPIOs configurable as input or output.

Master / Slave I2C interface.

Interrupt function.

PWM-LED.

Format auto detecting

Auto detecting PCM / DoP format.

Auto detecting I2S / DSD interface.

Misc

Embeded 8051 controller

UART interface

Volume control with fading in/out function.

Playback basic auto De-pop function.

One 12MHz crystal requirement only.