CS4330/31/33
8 Pin Stereo D/A Converter for Digital Audio
Features
Description
The CS4330, CS4331 and CS4333 are complete, stereo
digital-to-analog output systems including interpolation,
1-bit D/A conversion and output analog filtering in an 8-
pin package. These devices differ in the serial interface
format used to input audio data.
The CS4330, CS4331 and CS4333 are based on delta-
sigma modulation, where the modulator output controls
the reference voltage input to an ultra-linear analog low-
pass filter. This architecture allows for infinite adjustment
of sample rate between 2 kHz and 50 kHz while main-
taining linear phase response simply by changing the
master clock frequency.
The CS4330, CS4331 and CS4333 contain on-chip dig-
ital de-emphasis, operate from a single +3 V or +5 V
power supply, and consume only 60mW of power with a
3 V power supply. These features make them ideal for
portable CD players and other portable playback
systems.
ORDERING INFORMATION
See page 21.
I
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Complete Stereo DAC System:
Interpolation, D/A, Output Analog Filtering
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18-Bit Resolution
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94 dB Dynamic Range
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0.003% THD
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Low Clock Jitter Sensitivity
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Single +3 V or +5 V Power Supply
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Filtered Line Level Outputs
Linear Phase Filtering
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On-Chip Digital De-emphasis
DEM/SCLK
2
LRCK
SDATA
3
1
Serial Input
Interface
De-emphasis
AGND
6
VA+
7
Voltage Reference
Interpolator
Delta-Sigma
Modulator
DAC
Analog
Low-Pass
Filter
AOUTL
8
Interpolator
Delta-Sigma
Modulator
4
MCLK
DAC
Analog
Low-Pass
Filter
AOUTR
5
Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
Copyright
©
Cirrus Logic, Inc. 1997
(All Rights Reserved)
MAY ‘97
DS136F1
1
CIRRUS [ CIRRUS LOGIC ]
