Integrated

Circuit

Systems, Inc.

ICS2002

Wavedec

™

™ Digital Audio Codec

ICS2002RevF093094

Features

•• Digital audio 8/16-bit record/playback

•• Fully programmable sample rates including industry

standards:

- 44.1 kHz

- 22.050 kHz

- 11.025 kHz

- 8.00 kHz

- 5.513 kHz

•• DAC output oversampled to simplify external filtering.

•• Four data formats:

- 16 bit linear

- 8 bit linear

- 8 bit u-law

- 8 bit a-law

•• 16 step analog output level control, -1.5dB/step

•• 8-bit log scale digital volume control

•• Oversampling ADC with input filter.

•• Programmable IIR filters for input anti-aliasing and output

reconstruction.

•• ISA bus interface

•• 8/16-bit DMA and I/O transfer modes

•• Input/output FIFO buffer

•• Power-down mode

•• 44-pin PLCC package

Block Diagram

Description

The ICS2002 is a mixed-signal integrated circuit providing a

low-cost recording and playback solution for multimedia audio

applications. These applications include document annotation,

voice mail, interactive games, multimedia sound record/play-

back, and Windows

™

™ sound production. The ICS2002 sup-

ports the record and playback of 16-bit audio data, and provides

a 8/16-bit parallel interface to the industry standard PC bus.

Wavedec is a trademark of Integrated Circuit Systems, Inc.