CDB4220 데이터 시트보기 (PDF) - Cirrus Logic

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CDB4220

24-Bit Stereo Audio Codec with 3V Interface

Cirrus Logic 

CS4220

CS4221

24-Bit Stereo Audio Codec with 3V Interface

Features

l 100 dB Dynamic Range A/D Converters

l 100 dB Dynamic Range D/A Converters

l 105 dB DAC Signal-to-Noise Ratio (EIAJ)

l Analog Volume Control (CS4221 only)

l Differential Inputs / Outputs

l On-chip Anti-aliasing and Output Smoothing

Filters

l De-emphasis for 32, 44.1 and 48 kHz

l Supports Master and Slave Modes

l Single +5 V power supply

l On-Chip Crystal Oscillator

l 3 - 5 V Digital Interface

Description

The CS4220/1 is a highly integrated, high performance,

24-bit, audio codec providing stereo analog-to-digital

and stereo digital-to-analog converters using delta-sig-

ma conversion techniques. The device operates from a

single +5 V power supply, and features low power con-

sumption. Selectable de-emphasis filter for 32, 44.1, and

48 kHz sample rates is also included.

The CS4221 also includes an analog volume control ca-

pable of 113.5 dB attenuation in 0.5 dB steps. The

analog volume control architecture preserves dynamic

range during attenuation. Volume control changes are

implemented using a “soft” ramping or zero crossing

technique.

Applications include digital effects processors, DAT, and

multitrack recorders.

ORDERING INFORMATION

CS4220-KS -10 to +70 °C 28-pin SSOP

CS4221-KS -10 to +70 °C 28-pin SSOP

CDB4220/1

Evaluation Board

I

RST

LRCK

SCLK

SDIN

SDOUT

(DIF1)

(DIF0) (DEM0) (DEM1)

SCL/CCLK SDA/CDIN AD0/CS I 2C/SPI

VL

MCLK VD VA

Control Port

Left

DAC

Volume *

Control

Voltage

Reference

AOUTL+

AOUTL-

Right

DAC

Volume *

Control

Clock OSC

Left

ADC

Right

ADC

XTI XTO

( ) = CS4220

DGND

* = CS4221

AGND

AOUTR+

AOUTR-

AINL-

AINL+

AINR-

AINR+

Preliminary Product Information

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.cirrus.com

Copyright © Cirrus Logic, Inc. 1999

(All Rights Reserved)

APR ‘00

DS284PP3

1

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