AD1838 Analog Devices, AD1838 Datasheet

AD1838

Manufacturer Part Number

AD1838

Description

2 ADC, 6 DAC 96 Khz, 24-Bit Sigma Delta Codec

Manufacturer

Analog Devices

Datasheet

1.AD1838.pdf (24 pages)

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BOSTOCK HK LIMITED

Part Number:

AD1838AASZ

Manufacturer:

Analog Devices Inc

Quantity:

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Company:

BOSTOCK HK LIMITED

Part Number:

AD1838AASZ-REEL

Manufacturer:

Analog Devices Inc

Quantity:

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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.

SHARC is a registered trademark of Analog Devices, Inc.

REV. PrD 03/02

Preliminary Technical Data

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 one DAC

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

Multibit Sigma-Delta Modulators with

Data Directed Scrambling DACs—Least Sensitive to

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

Jitter

ADCs: –92 dB THD + N, 103 dB SNR and Dynamic

Range

DACs: –95 dB THD + N, 105 dB SNR and Dynamic

Range

1024 Step Linear Scale

AAUXDATA3

DAUXDATA

DSDATA1

DSDATA2

DSDATA3

DLRCLK

ADCRN

DBCLK

ADCLN

ADCRP

ADCLP

DVDD

PRELIMINARY TECHNICAL DATA

DVDD

ADC

ODVDD

ALRCLK

DIGITAL

FILTER

FUNCTIONAL BLOCK DIAGRAM

SERIAL DATA

I/O PORT

DGND

ABCLK

DGND

ASDATA

AGND

CCLK

AGND

CONTROL PORT

CLATCH

PRODUCT OVERVIEW

The AD1838 is a high-performance single-chip codec featuring

three stereo DACs and one stereo ADC. Each DAC comprises

a high-performance digital interpolation filter, a multibit sigma-

delta modulator featuring Analog Devices’ patented

technology,

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

52-Lead MQFP Plastic Package

APPLICATIONS

DVD Video and Audio Players

Home Theatre Systems

Automotive Audio Systems

Audio/Visual Receivers

Digital Audio Effects Processors

AGND AGND

Clocks

Justified, I

Single SHARC

VOLUME

CIN

96 kHz, 24-Bit - Codec

COUT

CLOCK

MCLK

DIGITAL

S-Compatible and DSP Serial Port Modes

FILTER

“

SPORT

PD/RST M/S

, 512

DAC

REF

AVDD

and 768

2 ADC, 6 DAC,

AVDD

OUTLP1

OUTLN1

OUTRP1

OUTRN1

OUTLP2

OUTLN2

OUTRP2

OUTRN2

OUTLP3

OUTLN3

OUTRP3

OUTRN3

FILTD

FILTR

AD1838

(Continued on Page 10)

www.analog.com

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