system clock. The DAC contains a 3rd-
鈭單?/div>
modulator, a digital interpolation filter, and
an analog output amplifier. The PCM1726 accepts
16-bit input data in either normal or I
2
S formats.
The digital filter performs an 8X interpolation func-
tion and includes soft mute. The PCM1726 can accept
standard digital audio sampling frequencies as well as
one-half and double sampling frequencies.
The PCM1726 is ideal for applications which combine
compressed audio and video data such as DVD, DVD-
ROM, set-top boxes and MPEG sound cards.
BCKIN
LRCIN
DIN
Serial
Input
I/F
8X Oversampling
Digital Filter
with Function
Controller
Multi-level
Delta-Sigma
Modulator
DAC
Low-pass
Filter
V
OUT
L
CAP
Multi-level
Delta-Sigma
Modulator
Low-pass
Filter
V
OUT
R
MUTE
FORMAT
LRPL
Mode
Control
I/F
DAC
ZERO
BPZ-Cont.
Open Drain
RSTB
256f
S
/384f
S
Power Supply
SCKI
V
CC
AGND V
DD
DGND
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111
Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏 1996 Burr-Brown Corporation
PDS-1345B
Printed in U.S.A. March, 1997