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CX20701
Audio Cross Mixer IC
The CX20701 is a cost-effective device in the new Audio Cross Mixer IC category. The device integrates audio I/Os, CODEC, and SRC in a single package, offering the product designer unparalleled flexibility and simplicity to merge, mux, and convert audio signals from both analog and digital domains with simple register control via I2C, SPI, or USB. The CX20701 Evaluation Kit comes with simple-to-use Toolbox software with intuitive views of data path and control parameters. The device features one 4-wire and one 5-wire digital audio interface that can be mixed or multiplexed to support dual bi-directional I2S, Pulse Code Modulation (PCM) with independent sampling rates. The digital audio interfaces can also be re-tasked to support S/PDIF-out, S/PDIF-in, single bit stream PDM input for digital microphones. The device is controlled and configured by both read and write capability through I2C and the Serial Peripheral Interface (SPI), and USB2.0 interface. The device integrates highperformance, 102 dB SNR, 24-bit DACs, ground referenced Capless headphone driver, and single-ended/ differential line-output. The analog input paths feature high-performance 24-bit ADCs supporting stereo microphones and stereo line-inputs. Different audio sampling rates ranging from 8 kHz to 96 kHz are generated directly from the master clock without the need for an external PLL. An additional Master Clock output is available to drive external CODEC in slave mode. The CX20701 eliminates the need for a multiple-chip reference design, making it easy and economical for manufacturers to design a differentiated audio product with simplicity and turnkey solution. The device is packaged in an environmentally-friendly, RoHS/Greencompliant 76-pin QFN (Quad Flat No leads) package.
Applications
Gaming Audio Peripherals Music Instrument Mixer/Amplifiers System Embedded Audio System
Part Number CX20701 Description CX20701Audio Cross Mixer
IC with I2S, Line In/Out, USB, SPDIF In, Digital Mic, and Headphone Driver
Key Features
I2S, Line In/Out, S/PDIF, USB DAC, ADC, Headphone driver and Microphone preamp Toolbox Software
Benefits
Generous IO for maximum data routing flexibility Integrated CODEC and amplifiers for cost and space saving Easy to configure and set up the hardware. Intuitive data path views.
Part Number
CX20701-21Z CX20701-EVK
Order Number
DSAC-L701-21CH CX20701-EVK 76 QFN
Package
Description
Ordering Option Evaluation Kit
All devices are lead-free (Pb Free) and RoHS compliant
Free Datasheet http://www.datasheet4u.com/
CX20701 Features
4-wire and 5-wire digital audio I/O (I2S/PCM/SPDIF), supporting full duplex independent sampling rates One 3-wire I2C or 4-wire SPI slave interface for external MCU USB 2.0 Compliant Audio Class Interface Eight GPIO pins Three single-ended line in (convertible to one stereo differential line in and one singleend)
Up to four microphone inputs with integrated preamp and .