PCM1741
PCM
1 74
1
www.ti.com
+3.3V Single-Supply, 24-Bit, 96kHz Sampling
Enhanced Multilevel, Delta-Sigma, Audio
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q
24-BIT RESOLUTION
q
ANALOG PERFORMANCE (V
CC
= +3.3V):
Dynamic Range: 98dB typ
SNR: 98dB typ
THD+N: 0.005% typ
Full-Scale Output: 2.05Vp-p typ
q
8x OVERSAMPLING DIGITAL FILTER:
Stopband Attenuation: –55dB
Passband Ripple:
±
0.03dB
q
SAMPLING FREQUENCY: 5kHz to 100kHz
q
SYSTEM CLOCK: 256, 384, 512, 768f
S
with
Auto Detect
q
ACCEPTS 16-, 18-, 20-, AND 24-BIT AUDIO
DATA
q
DATA FORMATS: Standard, I
2
S, and Left-
Justified
q
USER-PROGRAMMABLE MODE CONTROLS:
Digital Attenuation: 0dB to –63dB, 0.5dB/Step
Digital De-Emphasis
Digital Filter Roll-Off: Sharp or Slow
Soft Mute
Zero Flags for Each Output
q
3.3V SINGLE POWER SUPPLY
q
5V TOLERANT DIGITAL INPUTS
q
SMALL SSOP-16 PACKAGE
APPLICATIONS
q
AV RECEIVERS
q
DVD MOVIE PLAYERS
q
DVD ADD-ON CARDS FOR HIGH-END PCs
q
HDTV RECEIVERS
q
CAR AUDIO SYSTEMS
q
OTHER APPLICATIONS REQUIRING 24-BIT
AUDIO
DESCRIPTION
The PCM1741 is a CMOS, monolithic, integrated circuit
which includes stereo Digital-to-Analog Converters
(DACs) and support circuitry in a small SSOP-16 package.
The data converters utilize Texas Instrument’s enhanced
multilevel delta-sigma architecture that employs fourth-
order noise shaping and 8-level amplitude quantization to
achieve excellent dynamic performance and improved toler-
ance to clock jitter. The PCM1741 accepts industry standard
audio data formats with 16- to 24-bit data, providing easy
interfacing to audio DSP and decoder chips. Sampling rates
up to 100kHz are supported. A full set of user-program-
mable functions are accessible through a 3-wire serial
control port that supports register write functions.
Copyright © 2000, Texas Instruments Incorporated
SBAS175
Printed in U.S.A. December, 2000
BURR-BROWN [ BURR-BROWN CORPORATION ]
