PCM1744U Datasheet, PDF (1/13 Pages) Texas Instruments – 24 Bits, 96kHz, Sampling Stereo Audio DIGITAL-TO-ANALOG CONVERTER

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PCM1744
PCM1744
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TM _{24 Bits, 96kHz,}
Sampling Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q COMPLETE STEREO DAC: Includes Digital
Filter and Output Amp
q DYNAMIC RANGE: 95dB
q MULTIPLE SAMPLING FREQUENCIES:
Up to 96kHz
q 8x OVERSAMPLING DIGITAL FILTER
q SYSTEM CLOCK: 256f_S / 384f_S
q 24-BIT I²S DATA INPUT FORMAT
q SMALL 14-PIN SOIC PACKAGE
DESCRIPTION
The PCM1744 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 PCM1744 accepts
24-bit input data in a I²S format.
The digital filter performs an 8x interpolation function
and includes de-emphasis at 44.1kHz. The PCM1744
can accept digital audio sampling frequencies from
16kHz to 96kHz, always at 8X oversampling.
The PCM1744 is ideal for low-cost, CD-quality con-
sumer audio applications.
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
SCKI
Power Supply
V_CC
GND
V_OUTL
CAP
V_OUTR
SBAS130
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© 1999 Burr-Brown Corporation
PDS-1₁553A
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PCM1744 ^{Printed in U.S.A. September, 1999}