CS5334 CS5335
20-Bit, Stereo A/D Converter for Digital Audio
Features
General Description
The CS5334 and CS5335 are 2-channel, single +5V
supply, pin compatable analog-to-digital converters for
digital audio systems. The CS5334 and CS5335 perform
sampling, analog-to-digital conversion and anti-alias fil-
tering, generating 20-bit values for both left and right
inputs in serial form. The output word rate can be up to
50 kHz per channel.
CS5334
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Dynamic Range: 100 dB
THD+N: -90 dB
CS5335
Dynamic Range: 105 dB
THD+N: -95 dB
The CS5334 and CS5335 use 4th-order, delta-sigma
modulation with 128X oversampling followed by digital
filtering and decimation, which removes the need for an
external anti-alias filter. These ADCs use a differential
architecture which provides excellent noise rejection.
128X Oversampling
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•
Fully Differential Inputs
Linear Phase Digital Anti-Alias Filtering
21.7 kHz passband (fs = 48kHz)
85 dB stop band attenuation
The CS5334 and CS5335 have a filter passband to
21.7kHz. The filter has linear phase, 0.0025 dB pass-
band ripple, and >85 dB stopband rejection. An on-chip
high pass filter is also included to remove DC offsets.
0.0025 dB pass band ripple
High Pass Filter - DC offset removal
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ORDERING INFORMATION:
Peak Signal Level Detector
Model
CS5334-KS
CS5335-KS
Temp. Range Package Type
-10° to 70°C 20-pin Plastic SSOP
-10° to 70°C 20-pin Plastic SSOP
High Resolution and Bar Graph Modes
VD+
RST
OVFL
2
FRAME SCLK
LRCK
12
MCLK
VA+
8
7
3
10
6
18
Voltage Reference
CMOUT
SDATA
DIF0
15
9
Serial Output Interface
20
19
DIF1
AINL-
AINL+
16
LP Filter
Digital Decimation
High Pass
Filter
17
Filter
S/H
Comparator
DAC
Digital Decimation
Filter
High Pass
Filter
AINR-
AINR+
14
13
LP Filter
S/H
Comparator
DAC
11
1
5
4
AGND
DGND
HP DEFEAT
PU
This document contains information for a new product. Crystal
Semiconductor reserves the right to modify this product without notice.
Preliminary Product Information
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
NOV ’96
DS237PP2
Copyright Crystal Semiconductor Corporation 1996
(All Rights Reserved)
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