CS5334 CS5335
20-Bit, Stereo A/D Converter for Digital Audio
Features
General Description
100 dB
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.
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.
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.
ORDERING INFORMATION:
Model
Temp. Range Package Type
CS5334-KS
-10° to 70°C 20-pin Plastic SSOP
CS5335-KS
-10° to 70°C 20-pin Plastic SSOP
MCLK
18
•
CS5334 Range:
Dynamic
•
CS5335 Range:
Dynamic
THD+N: -95 dB
THD+N: -90 dB
105 dB
•
128X Oversampling
•
Fully Differential Inputs
Digital Anti-Alias Filtering
•
Linear Phasepassband (fs = 48kHz)
21.7 kHz
•
High Pass Filter - DC offset removal
•
Peak Signal Level Detector Graph Modes
High Resolution and Bar
VA+
85 dB stop band attenuation
0.0025 dB pass band ripple
VD+
3
6
RST
OVFL
2
FRAME SCLK
LRCK
10
8
12
7
CMOUT
15
Voltage Reference
9
Serial Output Interface
SDATA
DIF0
DIF1
20
19
AINL-
AINL+
16
17
LP Filter
S/H
DAC
Digital Decimation
Filter
Comparator
High Pass
Filter
AINR-
AINR+
14
13
S/H
LP Filter
Digital Decimation
Filter
High Pass
Filter
Comparator
DAC
4
AGND
5
DGND
PU
11
1
HP DEFEAT
Preliminary Product Information
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
This document contains information for a new product. Crystal
Semiconductor reserves the right to modify this product without notice.
Copyright
©
Crystal Semiconductor Corporation 1996
(All Rights Reserved)
NOV ’96
DS237PP2
1
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