AV2188

June 2, 2000

3-20

DESCRIPTION

The AV2188 is a mixed signal CMOS monolithic audio CODEC. It consists six channels sigma delta DACs and two

channels sigma delta ADCs. The DACs support 20-bit and 24-bit input data, while the ADCs provides 24-bit MSB

justified data output.

XCK REQUIREMENT

The AV2188 support 384 and 256 times sampling clock for 32, 44.1 and 48 K audio; 192 and 128 times for the 96

K audio.; and 96 and 64 times for the 192K audio. .

XCK Requirement

Sampling

Rate

XCK Freq.

384*fs

256*fs

32 K

12.288 MHz

8.192 MHz

44.1

16.934 Mhz

11.29 Mhz.

48 K

18.432 MHz

12.288 Mhz.

96 K

18.432 MHz

12.288 Mhz.

192 K

18.432 Mhz

12.288 Mhz.