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器件3D模型￥ 11.141
PCM1725U/2KG4 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DA转换器
封装:
SOIC-14
描述:
97dB SNR 立体声 DAC 14-SOIC
Pictures:
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PCM1725U/2KG4数据手册
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®
1
PCM1725
Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
16 Bits, 96kHz Sampling
TM
PCM1725
DESCRIPTION
The PCM1725 is a complete low cost stereo audio
digital-to-analog converter (DAC), operating off of a
256f
S
or 384f
S
system clock. The DAC contains a 3rd-
order ∆Σ modulator, a digital interpolation filter, and
an analog output amplifier. The PCM1725 accepts
16-bit input data in either normal or I
2
S formats.
The digital filter performs an 8X interpolation function
and includes de-emphasis at 44.1kHz. The PCM1725
can accept digital audio sampling frequencies from
16kHz to 96kHz, always at 8X oversampling.
The PCM1725 is ideal for low-cost, CD-quality con-
sumer audio applications.
®
FEATURES
● COMPLETE STEREO DAC: Includes Digital
Filter and Output Amp
● DYNAMIC RANGE: 95dB
● MULTIPLE SAMPLING FREQUENCIES:
16kHz to 96kHz
● 8X OVERSAMPLING DIGITAL FILTER
● SYSTEM CLOCK: 256f
S
/384f
S
● NORMAL OR I
2
S DATA INPUT FORMATS
● SMALL 14-PIN SOIC PACKAGE
PCM1725
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
Serial
Input
I/F
Mode
Control
I/F
8X Oversampling
Digital Filter
SCKI
256f
S
/384f
S
V
CC
GND
Multi-level
Delta-Sigma
Modulator
V
OUT
L
CAP
DAC
Multi-level
Delta-Sigma
Modulator
Low-pass
Filter
Low-pass
Filter
V
OUT
R
DAC
FORMAT
LRCIN
DIN
BCKIN
DM
Power Supply
© 1997 Burr-Brown Corporation PDS-1373C Printed in U.S.A. January, 1998
SBAS067
Not Recommended For New Designs
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