CS5336 CS5338 CS5339
16-Bit, Stereo A/D Converters for Digital Audio
Semiconductor Corporation
Features
General Description
The CS5336, CS5338 & CS5339 are complete analog-
to-digital converters for stereo digital audio systems.
They perform sampling, analog-to-digital conversion and
anti-aliasing filtering, generating 16-bit values for both
left and right inputs in serial form. The output word rate
can be up to 50 kHz per channel.
Complete CMOS Stereo A/D System
Delta-Sigma A/D Converters
•
Digital Anti-Alias Filtering
S/H Circuitry and Voltage Reference
Adjustable System Sampling Rates
including 32kHz, 44.1 kHz & 48kHz
•
•
The ADCs use delta-sigma modulation with 64X over-
sampling, followed by digital filtering and decimation,
which removes the need for an external anti-alias filter.
Low Noise and Distortion
>90 dB S/(N+D)
The CS5336 & CS5338 have an SCLK which clocks out
data on rising edges. The CS5339 has an SCLK which
clocks out data on falling edges.
Internal 64X Oversampling
•
•
The CS5336 has a filter passband of dc to 22kHz. The
CS5338 & CS5339 have a filter passband of dc to 24
kHz. The filters have linear phase, 0.01 dB passband
ripple, and >80 dB stopband rejection.
Linear Phase Digital Anti-Alias Filtering
0.01dB Passband Ripple
80dB Stopband Rejection
The ADC’s are housed in a 0.6" wide 28-pin plastic DIP,
and also in a 0.3" wide 28-pin SOIC surface mount
package. Extended temperature range versions of the
CS5336 are also available.
Low Power Dissipation: 400 mW
Power-Down Mode for Portable
Applications
•
•
Evaluation Board Available
ORDERING INFORMATION:
See Page 3-59
S C LK
15
L/R
14
IC LK A
23
APD
6
A C A L
7
O C LK D IC LKD
21 20
F SYN C
17
16
28
SD ATA
VREF
Voltage Reference
12
13
Serial O utput Interface
CM O D E
SM O D E
2
3
A IN L
LP Filter
ZER O L
Digital Decim ation
Filter
S/H
Com parator
11
D AC
T S T
27
26
AIN R
Digital Decim ation
Filter
LP Filter
Z ER O R
8
S/H
N C
N C
Com parator
1
Calibration
Microcontroller
Calibration
S R A M
A GN D
22
D AC
4
5
25
VL+
24
LG N D
9
10
18
V D +
19
VA+
VA-
D C A L D P D
D GN D
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
(512) 445-7222 FAX: (512) 445-7581
AUG ’93
DS23F1
3-39