CS6422-CSZ/A Overview
There is also an accompanying case included with this set. There is a recommendation that it should be mounted with a Surface Mount type mount. The file is embedded in a 20-SOIC (0.295, 7.50mm Width) case. This device has 2 channels. For your reference, here are some Audio Signal Processor functions. It can be used in Communication Systems. There is a supply of votage within 4.5V~5.5V. -40°C~85°C TA is the temperature range for this device.
CS6422-CSZ/A Features
With 20-SOIC (0.295, 7.50mm Width) channels
operate temperature at the range of -40°C~85°C TA

CS6422-CSZ/A Applications
There are a lot of Cirrus Logic Inc.
CS6422-CSZ/A Audio Special Purpose applications.

AV/DVD Receiver, AV Amplifier
Car or Mobile Audio System
Digital Television
Musical Instruments
Recording Systems
High-End Audio/Sound Card for PC
Replacement of DIR1703
Other Applications Requiring S/PDIF Receiver
Audio Differential Line Drivers
Audio Mix Consoles

Mounting Type	Surface Mount
Package / Case	20-SOIC (0.295, 7.50mm Width)
Operating Temperature	-40°C~85°C TA
Packaging	Tube
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Applications	Communication Systems
Voltage - Supply	4.5V~5.5V
Function	Audio Signal Processor
Number of Channels	2
Interface	Serial