CS5330A
CS5331A
8-Pin, Stereo A/D Converter for Digital Audio
Features
General Description
The CS5330A / 31A is a complete stereo analog-to-
digital converter which performs anti-alias filtering,
sampling and analog-to-digital conversion generating
18-bit values for both left and right inputs in serial form.
The output sample rate can be infinitely adjusted be-
tween 2 and 50 kHz.
The CS5330A / 31A operates from a single +5V supply
and requires only 150 mW for normal operation, mak-
ing it ideal for battery-powered applications.
The ADC uses delta-sigma modulation with 128X over-
sampling, followed by digital filtering and decimation,
which removes the need for an external anti-alias filter.
The linear-phase digital filter has a passband to
21.7 kHz, 0.05 dB passband ripple and >80 dB stop-
band rejection. The device also contains a high pass
filter to remove DC offsets.
The device is available in a 0.208" wide, 8-pin surface
mount package.
ORDERING INFORMATION:
Model
Temp. Range
CS5330A-KS -10° to 70°C
CS5331A-KS -10° to 70°C
CS5330A-BS -40° to +85°C
CS5331A-BS -40° to +85°C
MCLK
4
Voltage Reference
Serial Output Interface
8
LP Filter
S/H
DAC
Digital Decimation
Filter
Comparator
DAC
7
VA+
High
Pass
Filter
Digital Decimation
Filter
Comparator
SCLK
2
LRCK
3
1
SDATA
•
•
•
•
•
•
•
Single +5 V Power Supply
18-Bit Resolution
94 dB Dynamic Range
Linear Phase Digital Anti-Alias Filtering
0.05dB Passband Ripple
80dB Stopband Rejection
Low Power Dissipation: 150 mW
Power-Down Mode for Portable
Applications
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
Package Type
8-pin plastic SOIC
8-pin plastic SOIC
8-pin plastic SOIC
8-pin plastic SOIC
AINL
High
Pass
Filter
AINR
5
S/H
LP Filter
AGND
6
Cirrus Logic, Inc.
Crystal Semiconductor Product Division
P.O. Box 17847, Austin, TX 78760
(512) 445-7222 FAX: (512) 445-7581
http://www.crystal.com
Copyright
©
Cirrus Logic, Inc. 1999
(All Rights Reserved)
MAR ’99
DS138F2
1
CIRRUS [ CIRRUS LOGIC ]
