24-Bit, 96kHz, Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
With HDCD
®
Decoder
49%
FPO
PCM1732
®
TM
FEATURES
● ENHANCED MULTI-LEVEL ∆Σ DAC
● INPUT AUDIO DATA WORD: 16-, 20-, 24-Bit
● SAMPLING FREQUENCY (f
s
): 16kHz - 96kHz
● SYSTEM CLOCK: 256, 384, 512, 768f
S
● HIGH PERFORMANCE:
THD+N: –96dB
Dynamic Range: 104dB
SNR: 104dB
● AUDIO OUTPUT LEVEL: 0.57 x V
CC
(Vp-p)
● 8x OVERSAMPLING DIGITAL FILTER WITH
HDCD DECODER:
Stopband Attenuation: –120dB
Passband Ripple:
±
0.00001dB
HDCD Filter Optimized for 44.1kHz to 48kHz
and 88.2kHz to 96kHz
● MULTI-FUNCTIONS:
Digital De-emphasis
Soft Mute
Digital Attenuation
Zero Detect
Digital Gain Scaling
Reversible Output Phase
● +5V SINGLE-SUPPLY OPERATION
● SMALL SO-28 PACKAGE
© 1999 Burr-Brown Corporation
For most current data sheet and other product
information, visit www.burr-brown.com
®
DESCRIPTION
The PCM1732 is designed for mid- to high-grade
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
sensitivity.
The internal digital filter operates at 8x oversampling
at a 96kHz sampling rate, with –120dB stopband
attenuation.
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
HDCD
®
is a registered trademark of Pacific Microsonics, Inc.
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.
Serial
Input
I/F
Mode
Control
I/F
HDCD
Hidden
Code
Recovery
HDCD
8x
Oversampling
Digital Filter
Enhanced
Multi-Level
∆Σ
Modulator
Crystal/OSC
XTI
SCK
XTO CLKO V
CC1
AGND1 V
DD
DGND
HDCD
Amplitude
Decoding
V
OUT
L
V
CC2
L
V
CC2
R
AGND2R
AGND2L
EXTL
PCM1732
Open
Drain
DAC
Low-Pass
Filter
Low-Pass
Filter
BPZ Control
V
OUT
R
EXTR
ZERO
DAC
ML/I
2
S
MC/DEM
MD/FSS
CS/IWO
MODE
MUTE
RST
LRCIN
DIN
BCKIN
Power Supply
Power-On Reset
NOTE: An HDCD license from Pacific Microsonics, Inc. is
required to purchase the PCM1732.
FL8380
FL8385
harman/kardon
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