CS8422 CIRRUS [Cirrus Logic], CS8422 Datasheet - Page 2

• Manufacturer Part Number: CS8422
• Description: 24-bit, 192 kHz, Asynchronous Sample Rate Converter with
• Manufacturer: CIRRUS [Cirrus Logic]

2
System Features
SPI
Hardware Mode
Flexible 3-wire Digital Serial Audio Input Port
Dual Serial Audio Output Ports with
Independently Selectable Data Paths
Master or Slave Mode Operation for all Serial
Audio Ports
Time Division Multiplexing (TDM) Mode
Integrated Oscillator for use with External
Crystal
Four General-purpose Output Pins (GPO)
+3.3 V Analog Supply (VA)
+1.8 V to 5.0 V Digital Interface (VL)
Space-saving 32-pin QFN Package
™
or I²C
®
Software Mode and Stand-Alone
General Description
The CS8422 is a 24-bit, high-performance, monolithic
CMOS stereo asynchronous sample rate converter with
an integrated digital audio interface receiver that de-
codes audio data according to the EIAJ CP1201, IEC-
60958, AES3, and S/PDIF interface standards.
Audio data is input through the digital interface receiver
or a 3-wire serial audio input port. Audio is output
through one of two 3-wire serial audio output ports. Se-
rial audio data outputs can be set to 24, 20, 18, or 16-bit
word-lengths. Data into the digital interface receiver and
serial audio input port can be up to 24-bits long. Input
and output data can be completely asynchronous, syn-
chronous to an external clock through XTI, or
synchronous to the recovered master clock.
The CS8422 can be controlled through the control port
in Software Mode or in a Stand-Alone Hardware Mode.
In Software Mode, the user can control the device
through an SPI or I²C control port.
Target applications include digital recording systems
(DVD-R/RW, CD-R/RW, PVR, DAT, MD, and VTR), dig-
ital
processors, computer audio systems, and automotive
audio systems.
The CS8422 is available in a space-saving QFN pack-
age in both Commercial (-40° C to +85° C) and
Automotive (-40° C to +105° C) grades. The CDB4822
is also available for device evaluation and implementa-
tion suggestions. Please refer to
on page 80
mixing
for complete details.
consoles,
high-quality
“Ordering Information”
D/A,
CS8422
DS692PP1
effects