CS8421-CNZR Overview
The product comes in a case with the letter Tape & Reel (TR). The recommended mounting type for this product is Surface Mount. Embedded with it is a 20-VQFN Exposed Pad case. It has 2 channels. Sample Rate Converter functions are included in this part for your reference. Devices can be applied in Digital Audio Interfacing directions. Votage is provided within 2.38V~2.62V. A temperature range of -10°C~70°C TA is used by this device. 20 is the number of terminations on the chip. Search for the CS8421 family to find similar parts. The device's related specifications can be found here: 53kHz ~ 211kHz. The chip has 20 pins. The consumer IC type of a part can be determined by CONSUMER CIRCUIT. Surface Mount mounts it. Transferring data requires 20 kHz bandwidth.
CS8421-CNZR Features
With 20-VQFN Exposed Pad channels
operate temperature at the range of -10°C~70°C TA
consumer IC type: CONSUMER CIRCUIT

CS8421-CNZR Applications
There are a lot of Cirrus Logic Inc.
CS8421-CNZR Audio Special Purpose applications.

Portable electronics
Consumer electronics
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

Factory Lead Time	18 Weeks
Contact Plating	Tin
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	20-VQFN Exposed Pad
Number of Pins	20
Operating Temperature	-10°C~70°C TA
Packaging	Tape & Reel (TR)
Published	1995
JESD-609 Code	e3
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	20
Applications	Digital Audio Interfacing
Voltage - Supply	2.38V~2.62V
Terminal Position	QUAD
Terminal Form	NO LEAD
Peak Reflow Temperature (Cel)	260
Terminal Pitch	0.65mm
Time@Peak Reflow Temperature-Max (s)	40
Base Part Number	CS8421
Function	Sample Rate Converter
Qualification Status	Not Qualified
Number of Channels	2
Interface	Serial
Bandwidth	20 kHz
Specifications	53kHz ~ 211kHz
Consumer IC Type	CONSUMER CIRCUIT
Length	5mm
Height Seated (Max)	1mm
RoHS Status	RoHS Compliant