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APPLICATIONS

DESCRIPTION

PCM1742

SBAS176A – DECEMBER 2000 – REVISED APRIL 2005

24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma,

Audio Digital-to-Analog Converter

•

AV Receivers

•

24-Bit Resolution

•

DVD Movie Players

•

Analog Performance (VCC = 5 V):

•

DVD Add-On Cards for High-End PCs

– Dynamic Range:

•

DVD Audio Players

• 106 dB, Typical (PCM1742KE)

•

HDTV Receivers

• 100 dB, Typical (PCM1742E)

•

Car Audio Systems

– SNR:

•

Other Applications Requiring 24-Bit Audio

• 106 dB, Typical (PCM1742KE)

• 100 dB, Typical (PCM1742E)

– THD+N:

The PCM1742 is a CMOS, monolithic, integrated

• 0.002%, Typical (PCM1742KE)

circuit which includes stereo digital-to-analog con-

verters (DACs) and support circuitry in a small

• 0.003%, Typical (PCM1742E)

SSOP-16 package. The data converters use Texas

– Full-Scale Output: 3.1 Vp-p, Typical

Instruments' enhanced multilevel delta-sigma archi-

•

4x/8x Oversampling Digital Filter:

tecture that employs fourth-order noise shaping and

Stop-Band Attenuation: –55 dB

8-level amplitude quantization to achieve excellent

Pass-Band Ripple: ±0.03 dB

dynamic performance and improved tolerance to

clock jitter. The PCM1742 accepts industry-standard

•

Sampling Frequency: 5 kHz to 200 kHz

audio data formats with 16- to 24-bit data, providing

•

System Clock: 128 fS, 192 fS, 256 fS, 384 fS,

easy interfacing to audio DSP and decoder chips.

512 fS, 768 fS With Autodetect

Sampling rates up to 200 kHz are supported. A full

•

Accepts 16-, 18-, 20-, and 24-Bit Audio Data

set of user-programmable functions is accessible

through a 3-wire serial control port that supports

•

Data Formats: Standard, I

2S, and

register write functions.

Left-Justified

•

User-Programmable Mode Controls:

Digital Attenuation: 0 dB to –63 dB, 0.5

dB/Step

Digital De-Emphasis

Digital Filter Rolloff: Sharp or Slow

Soft Mute

Zero Flags for Each Output

•

Dual-Supply Operation: 5-V Analog, 3.3-V

Digital

•

5-V Tolerant Digital Inputs

•

Small SSOP-16 Package

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

FilterPro is a trademark of Texas Instruments.

System Two, Audio Precision are trademarks of Audio Precision, Inc.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2000–2005, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.