Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 2000
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
CS4340
24-Bit, 96 kHz Stereo DAC for Audio
Features
l
Complete Stereo DAC System: Interpolation,
D/A, Output Analog Filtering
l
101 dB Dynamic Range
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91 dB THD+N
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Low Clock Jitter Sensitivity
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+3 V to +5 V Power Supply
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Filtered Line Level Outputs
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On-Chip Digital De-emphasis for 32, 44.1,
and 48 kHz
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30 mW with 3 V supply
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Popguard
®
Technology for Control of Clicks
and Pops
Description
The CS4340 is a complete stereo digital-to-analog sys-
tem including digital interpolation, fourth-order delta-
sigma digital-to-analog conversion, digital de-emphasis
and switched capacitor analog filtering. The advantages
of this architecture include: ideal differential linearity, no
distortion mechanisms due to resistor matching errors,
no linearity drift over time and temperature and a high
tolerance to clock jitter.
The CS4340 accepts data at audio sample rates from
2 kHz to 100 kHz, consumes very little power, and oper-
ates over a wide power supply range. The features of the
CS4340 are ideal for DVD players, CD players, set-top
box and automotive systems.
ORDERING INFORMATION
CS4340-KS
16-pin SOIC, -10 to 70 °C
CS4340-BS
16-pin SOIC, -40 to 85 °C
CDB4340
Evaluation Board
I
∆Σ
DAC
Analog Filter
Serial
Input
Interface
Interpolation
Filter
Analog Filter
MUTEC
AOUTL
AOUTR
RST
LRCK
SDATA
MCLK
∆Σ
External
Mute Control
SCLK/DEM1
DAC
Interpolation
Filter
De-emphasis
DEM0
DIF0 DIF1
NOV ‘00
DS297PP3
PS212W
subwoofer
34
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