BurrBrown Products

from Texas Instruments

PC

M

173

8

FEATURES

APPLICATIONS

DESCRIPTION

PCM1738

SBAS174C – FEBRUARY 2002 – REVISED FEBRUARY 2007

24-Bit, 192-kHz Sampling, Advanced Segment, Audio-Stereo Digital-to-Analog Converter

• AV Receivers

• 24-Bit Resolution

• DVD Movie Players

• Analog Performance (V

CC = 5 V):

• SACD Players

–

Dynamic Range: 117 dB (typical)

• HDTV Receivers

–

SNR: 117 dB (typical)

• Car Audio Systems

–

THD+N: 0.0004% (typical)

• Digital Multitrack Recorders

–

Full-Scale Output: 2.2 Vrms (at

• Other Multichannel Audio Systems

Postamplifier)

• Differential Current Output: ±2.48 mA

• Sampling Frequency: 10 kHz to 200 kHz

The PCM1738 is a CMOS, monolithic, integrated

• System Clock: 128, 192, 256, 384, 512, or 768

circuit (IC) that includes stereo digital-to-analog

fS With Autodetect

converters (DACs) and support circuitry in a small

SSOP-28 package. The data converters use a newly

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

developed advanced segment DAC architecture to

• Data Formats: Standard, I2S, and Left-Justified

achieve

excellent

dynamic

performance

and

• 8× Oversampling Digital Filter:

improved tolerance to clock jitter. The PCM1738

–

Stop-Band Attenuation: –82 dB

provides balanced current outputs, allowing the user

to optimize analog performance externally, and

–

Pass-Band Ripple:

±0.002 dB

accepts industry-standard audio data formats with

• Optional Interface to External Digital Filter

16- to 24-bit data, providing easy interfacing to audio

Available

DSP and decoder chips. Sampling rates up to 200

• Optional Interface to DSD Decoder for SACD

kHz are supported. The PCM1738 also has two

optional modes of operation: an external digital filter

Playback

mode (for use with the DF1704, DF1706, and

• User-Programmable Mode Controls:

PMD200), and a DSD decoder interface for SACD

–

Digital Attenuation: 0 dB to –120 dB, 0.5

playback

applications.

A

full

set

of

dB/Step

user-programmable functions is accessible through a

4-wire serial control port that supports register write

–

Digital De-Emphasis

and read functions.

–

Digital Filter Rolloff: Sharp or Slow

–

Soft Mute

–

Zero-Detect Mute

–

Zero Flags for Each Output

• Dual-Supply Operation:

–

5-V Analog, 3.3-V Digital

• 5-V Tolerant Digital Inputs

• Small SSOP-28 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.

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

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2002–2007, 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.