CX20701 Datasheet, PDF (1/2 Pages) Conexant Systems, Inc – Eight GPIO pins

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 high-
performance, 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/Green-
compliant 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
Order Number
CX20701-21Z
DSAC-L701-21CH
CX20701-EVK
CX20701-EVK
All devices are lead-free (Pb Free) and RoHS compliant
Package
76 QFN
Description
Ordering Option
Evaluation Kit