®
PCM
49%
172
8
FPO
PCM1728
24-Bit, 96kHz Sampling
CMOS Delta-Sigma Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
TM
FEATURES
q
ENHANCED MULTI-LEVEL DELTA-SIGMA DAC
q
SAMPLING FREQUENCY (f
S
): 16kHz - 96kHz
q
INPUT AUDIO DATA WORD:
16-, 20-, 24-Bit
q
HIGH PERFORMANCE:
THD+N: –96dB
Dynamic Range: 106dB
SNR: 106dB
Analog Output Range: 0.62 x V
CC
(Vp-p)
q
8x OVERSAMPLING DIGITAL FILTER:
Stop Band Attenuation: –82dB
Passband Ripple:
±
0.002dB
q
MULTI FUNCTIONS:
Digital De-emphasis
Soft Mute
Zero Flag
q
+5V SINGLE SUPPLY OPERATION
q
SMALL 28-LEAD SSOP PACKAGE
DESCRIPTION
The PCM1728 is designed for mid- to high-grade
digital audio applications which achieve 96kHz sam-
pling rates with 24-bit audio data. PCM1728 uses a
newly developed, enhanced multi-level delta-sigma
modulator architecture that improves audio dynamic
performance and reduces jitter sensitivity in actual
applications. The internal digital filter operates at 8X
oversampling at a 96kHz sampling rate.
The PCM1728 has superior audio dynamic perfor-
mance, 24-bit resolution, and 96kHz sampling, mak-
ing it ideal for mid- to high-grade audio applications
such as CD, DVD, and musical instruments.
AGND2L
V
CC2
R
AGND2L
V
CC2
L
BCKIN
LRCIN
DIN
Serial
Input
I/F
DAC
8X Oversampling
Digital Filter with
Function
Controller
Enhanced
Multi-level
Delta-Sigma
Modulator
DAC
Low-pass
Filter
V
OUT
L
EXTL
I
2
S
DM1
DM0
IW0
IW1
MUTE
RST
Crystal/OSC
Mode
Control
I/F
Low-pass
Filter
V
OUT
R
EXTR
ZERO
SCK
Open Drain
Power Supply
XTI
XTO
CLKO
V
CC1
AGND1
V
DD
DGND
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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1998 Burr-Brown Corporation
PDS-1453A
Printed in U.S.A. April, 1998
SBAS096
ETC [ ETC ]
