PCM1732 Datasheet, PDF (1/18 Pages) Burr-Brown (TI) – 24-Bit, 96kHz, Stereo Audio DIGITAL-TO-ANALOG CONVERTER With HDCD Decoder

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49%
PCM1732
FPO
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TM _{24-Bit, 96kHz, Stereo Audio}
DIGITAL-TO-ANALOG CONVERTER
With HDCD^® Decoder
FEATURES
DESCRIPTION
q ENHANCED MULTI-LEVEL ∆Σ DAC
The PCM1732 is designed for mid- to high-grade
q INPUT AUDIO DATA WORD: 16-, 20-, 24-Bit
q SAMPLING FREQUENCY (f_s): 16kHz - 96kHz
q SYSTEM CLOCK: 256, 384, 512, 768f_S
q HIGH PERFORMANCE:
THD+N: –96dB
Dynamic Range: 104dB
SNR: 104dB
digital audio applications which achieve 96kHz sam-
pling rates with 24-bit audio data, such as High Defi-
nition Compatible Digital (HDCD) CD players, DVD
players, mini-disc players and AV receivers.
PCM1732 uses a newly-developed “enhanced, multi-
level delta-sigma modulator” architecture that im-
proves audio dynamic performance and reduces jitter
q AUDIO OUTPUT LEVEL: 0.57 x V_CC (Vp-p)
q 8x OVERSAMPLING DIGITAL FILTER WITH
HDCD DECODER:
Stopband Attenuation: –120dB
Passband Ripple: ±0.00001dB
HDCD Filter Optimized for 44.1kHz to 48kHz
sensitivity.
The internal digital filter operates at 8x oversampling
at a 96kHz sampling rate, with –120dB stopband
attenuation.
and 88.2kHz to 96kHz
q MULTI-FUNCTIONS:
Digital De-emphasis
Soft Mute
Digital Attenuation
Zero Detect
Digital Gain Scaling
Reversible Output Phase
BCKIN
LRCIN
DIN
Serial
Input
I/F
HDCD
Hidden
Code
Recovery
HDCD
Amplitude
Decoding
PCM1732
q +5V SINGLE-SUPPLY OPERATION
q SMALL SO-28 PACKAGE
NOTE: An HDCD license from Pacific Microsonics, Inc. is
required to purchase the PCM1732.
ML/I²S
MC/DEM
MD/FSS
CS/IWO
MODE
Mode
Control
I/F
HDCD
8x
Oversampling
Digital Filter
Enhanced
Multi-Level
∆Σ
Modulator
BPZ Control
DAC
DAC
Low-Pass
Filter
Low-Pass
Filter
V_OUTL
EXTL
V_OUTR
EXTR
ZERO
HDCD^® is a registered trademark of Pacific Microsonics, Inc.
MUTE
RST
SCK
Crystal/OSC
Power-On Reset
Power Supply
Open
Drain
HDCD^® technology is provided under license from Pacific Microsonics
Inc. The PCM1732’s design is covered by the following patents:
In the USA: 45,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274
5,854,600, 5,864,311, 5,872,531.
In Australia: 669,114.
Other patents pending.
XTI
XTO
CLKO V_CC1 AGND1 V_DD DGND
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© 1999 Burr-Brown Corporation
PDS-1522B
Printed in U.S.A. August, 1999