AD1835A Analog Devices, AD1835A Datasheet

AD1835A

Manufacturer Part Number

AD1835A

Description

2 ADC, 8 DAC, 96 Khz, 24-Bit Sigma Delta Codec

Manufacturer

Analog Devices

Datasheet

1.AD1835A.pdf (24 pages)

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REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties that

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

FEATURES

5 V Stereo Audio System with 3.3 V Tolerant Digital

Supports up to 96 kHz Sample Rates

192 kHz Sample Rate Available on 1 DAC

Supports 16-/20-/24-Bit Word Lengths

Multibit - Modulators with

Data Directed Scrambling DACs—Least

Differential Output for Optimum Performance

On-Chip Volume Controls per Channel with

DAC and ADC Software Controllable Clickless Mutes

Digital De-emphasis Processing

Interface

Perfect Differential Linearity Restoration for

Reduced Idle Tones and Noise Floor

Sensitive to Jitter

ADCs: –95 dB THD + N, 105 dB SNR, and

DACs: –95 dB THD + N, 108 dB SNR, and

1024-Step Linear Scale

Dynamic Range

DSDATA1

DSDATA2

DSDATA3

DSDATA4

DLRCLK

ADCRN

DBCLK

ADCRP

ADCLP

ADCLN

DVDD

AD1835A

DVDD

ADC

ODVDD

ALRCLK

DIGITAL

FILTER

FUNCTIONAL BLOCK DIAGRAM

SERIAL DATA

I/O PORT

DGND

ABCLK

DGND

ASDATA

AGND

CCLK

CONTROL PORT

CLATCH

AGND

PRODUCT OVERVIEW

The AD1835A is a high performance, single-chip codec fea-

turing four stereo DACs and one stereo ADC. Each DAC

comprises a high performance digital interpolation filter, a

multibit - modulator featuring Analog Devices’ patented

technology, and a continuous-time voltage out analog section.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

Supports 256

Power-Down Mode Plus Soft Power-Down Mode

Flexible Serial Data Port with Right-Justified, Left-

TDM Interface Mode Supports 8-In/8-Out Using a

Single SHARC

52-Lead MQFP Plastic Package

APPLICATIONS

DVD Video and Audio Players

Home Theater Systems

Automotive Audio Systems

Audio/Visual Receivers

Digital Audio Effects Processors

VOLUME

AGND AGND

Mode Clocks

Justified, I

CIN

96 kHz, 24-Bit - Codecs

COUT

CLOCK

MCLK

DIGITAL

FILTER

S Compatible, and DSP Serial Port Modes

SPORT

PD/RST M/S

, 512

DAC

REF

AVDD

, and 768

AVDD

2 ADC, 8 DAC,

AD1835A

OUTLP1

OUTLN1

OUTRP1

OUTRN1

OUTLP2

OUTLN2

OUTRP2

OUTRN2

OUTLP3

OUTLN3

OUTRP3

OUTRN3

OUTLP4

OUTLN4

OUTRP4

OUTRN4

FILTD

FILTR

(continued on page 11)

www.analog.com

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