PCM1720 Datasheet

IC型號(hào)：
PCM1720
PDF描述：
Stereo Audio DIGITAL-TO-ANALOG CONVERTER MPEG2/AC-3 COMPATIB...
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196.55KB
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PCM

172

FPO

49%

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PCM1720

Stereo Audio

DIGITAL-TO-ANALOG CONVERTER

MPEG2/AC-3 COMPATIBLE

FEATURES

ACCEPTS 16-, 20-, OR 24-BIT INPUT DATA

COMPLETE STEREO DAC: Includes Digital

Filter and Output Amp

DYNAMIC RANGE: 96dB

MULTIPLE SAMPLING FREQUENCIES:

16kHz to 96kHz

8X Oversampling at All Sampling

Frequencies

SYSTEM CLOCK: 256f

/384f

NORMAL OR I

S DATA INPUT FORMATS

SELECTABLE FUNCTIONS:

Soft Mute

Digital Attenuator (256 Steps)

Digital De-emphasis

OUTPUT MODE: Left, Right, Mono, Mute

DESCRIPTION

The PCM1720 is a complete low cost stereo audio

digital-to-analog converter (DAC), operating off of a

256f

or 384f

system clock. The DAC contains a 3rd-

order

鈭單?/div>

modulator, a digital interpolation filter, and

an analog output amplifier. The PCM1720 can accept

16-, 20-, or 24-bit input data in either normal or I

formats.

The digital filter performs an 8X interpolation func-

tion and includes selectable features such as soft mute,

digital attenuation and digital de-emphasis. The

PCM1720 can accept standard digital audio sampling

frequencies as well as one-half and double sampling

frequencies.

The PCM1720 is ideal for applications which combine

compressed audio and video data such as DVD, DVD-

ROM, set-top boxes and MPEG sound cards.

BCKIN

LRCIN

DIN

Serial

Input

I/F

8X Oversampling

Digital Filter

with Function

Controller

Multi-level

Delta-Sigma

Modulator

DAC

Low-pass

Filter

OUT

CAP

Multi-level

Delta-Sigma

Modulator

Low-pass

Filter

OUT

Mode

Control

I/F

DAC

ZERO

BPZ-Cont.

Open Drain

RSTB

256f

/384f

Power Supply

SCKI

AGND V

DGND

International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111

Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132

漏 1996 Burr-Brown Corporation

PDS-1333B

Printed in U.S.A. August, 1996

型號(hào)

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