CS4294

Features:

`AC '97 2.0 compatible
`20-bit quad output and 18-bit dual stereo input codec with fixed 48 kHz sampling rate
`Dedicated ADC for enhanced digital docking
`Three analog line-level stereo inputs for connection from LINE IN, CD, and AUX
`High quality pseudo-differential CD input
`Dual stereo line level output with independent 6- bit volume control
`6 General Purpose I/O pins
`Meets or exceeds Microsoft's ® PC 98 and PC 99 audio performance requirements
`CrystalClear™ Stereo Enhancement


Specifications

Parameter		Min	Typ	Max	Unit
Power Supplies	+3.3 V Digital +5 V Digital Analog	-0.3 -0.3 -0.3	- - -	6.0 6.0 6.0	V V V
Total Power Dissipation	(Supplies, Inputs, Outputs)	-	-	750	mW
Input Current per Pin	(Except Supply Pins)	-10	-	10	mA
Output Current per Pin	(Except Supply Pins)	-15	-	15	mA
Analog Input voltage		-0.3	-	AVdd + 0.3	V
Digital Input voltage		-0.3	-	DVdd + 0.3	V
Ambient Temperature	(Power Applied)	-55	-	110	°C
Storage Temperature		-65	-	115	°C

Description

The CS4294 is an AC '97 compatible Audio Codec designed for PC multimedia systems. Using the industry leading CrystalClear™ delta-sigma and mixed signal technology, the CS4294 is ideal for PC 98-compliant desktop, notebook, and entertainment PCs, where high-quality audio features are required. The CS4294 offers four channels of D/A and A/D conversion along with analog mixing and stereo enhancement processing. For multichannel audio systems, the CS4294 can provide four audio channels. The CS4294 provides an enhanced digital docking mode for portable applications by providing a dedicated ADC capture path from the analog input mixer.