PCM1725U Datasheet, PDF (1/14 Pages) Texas Instruments – Stereo Audio DIGITAL-TO-ANALOG CONVERTER

Not Recommended For New Designs
®
PCM1725
PCM1725
TM _{Stereo Audio}
DIGITAL-TO-ANALOG CONVERTER
16 Bits, 96kHz Sampling
FEATURES
q COMPLETE STEREO DAC: Includes Digital
Filter and Output Amp
q DYNAMIC RANGE: 95dB
q MULTIPLE SAMPLING FREQUENCIES:
16kHz to 96kHz
q 8X OVERSAMPLING DIGITAL FILTER
q SYSTEM CLOCK: 256f_S / 384f_S
q NORMAL OR I²S DATA INPUT FORMATS
q SMALL 14-PIN SOIC PACKAGE
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 I²S 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.
SBAS067
BCKIN
LRCIN
DIN
Serial
Input
I/F
FORMAT
DM
Mode
Control
I/F
8X Oversampling
Digital Filter
Multi-level
Delta-Sigma
Modulator
DAC
Multi-level
Delta-Sigma
Modulator
DAC
Low-pass
Filter
Low-pass
Filter
256f_S/384f_S
Power Supply
V_OUTL
CAP
V_OUTR
SCKI
V_CC
GND
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone] • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
© 1997 Burr-Brown Corporation
PDS-1₁373C
®
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