
Features
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
Low Noise and Distortion
>90 dB S/(N+D)
Internal 64X Oversampling
Linear Phase Digital Anti-Alias Filtering
0.01dB Passband Ripple
80dB Stopband Rejection
Low Power Dissipation: 400 mW
Power-Down Mode for Portable
Applications
Evaluation Board Available
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.
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.
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.
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.
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.
ORDERING INFORMATION:
See Page 3-59
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
(512) 445-7222 FAX: (512) 445-7581
AUG ’93
DS23F1
3-39
16-Bit, Stereo A/D Converters for Digital Audio
Semiconductor Corporation
AINR
S/H
AGND
DAC
AINL
S/H
DAC
Serial Output Interface
Voltage Reference
VREF
Calibration
SRAM
Comparator
Comparator
LP Filter
LP Filter
ZEROL
ZEROR
27
26
2
3
1
28
VD+
18
DGND
19
17
VA-
5
VL+
25
VA+
4
SMODE
13
NC
22
NC
8
TST
11
SCLK
15
APD
6
ACAL
7
ICLKA
23
DPD
10
DCAL
9
LGND
24
Digital Decimation
Filter
Digital Decimation
Filter
Calibration
Microcontroller
L/R
14
FSYNC
SDATA
CMODE
16
12
ICLKD
20
OCLKD
21
CS5336 CS5338 CS5339