ment of signals below 1500 Hz. The CK5320 Chipset is
tions which require a high dynamic range A/D converter.
anti-alias filtering.
to produce highly accurate conversions. The
鈭單?/div>
modula-
tor oversamples, virtually eliminating the need for
external analog anti-alias filters. The CS5322 linear-
phase FIR digital filter decimates the output to any one
of seven selectable update periods: 16, 8, 4, 2, 1, 0.5
and 0.25 milliseconds. Data is output from the digital fil-
ter in a 24-bit serial format.
ORDERING INFORMATION*
Chip Sets
Kits
CS5320-KL & CS5322-KL CK5320-KL1
CS5321-BL & CS5322-KL CK5321-KL1
CS5321-BL & CS5322-BL CK5321-BL1
A/D Converter Chipset
l
Dynamic Range
-
130 dB @ 25 Hz Bandwidth
-
121 dB @ 411 Hz Bandwidth
l
Delta-Sigma
Architecture
-
Fourth-Order Modulator
-
Variable Oversampling: 64X to 4096X
-
Internal Track-and-Hold Amplifier
l
CS5321
Signal-to-Distortion: 115 dB
l
Clock Jitter Tolerant Architecture
l
Input Voltage Range: +4.5 V
l
Flexible Filter Chip
-
Hardware or Software Selectable Options
-
Seven Selectable Filter Corners (-3 dB)
Frequencies: 25, 51, 102, 205, 411, 824 and
1650 Hz
l
Low
Power Dissipation: <100 mW
* Refer to Table 5
CS5320/21
V
dd1
V
ss1
V
dd2
V
ss2
LPWR
OFST
MSYNC
AINR
AIN+
AIN-
MDATA
VREF+
VREF-
AGND
DGND
HBR
VD+
DGND
CSEL
H/S
TDATA
PWDN
USEOR
DGND
Analog
Modulator
MFLG
MCLK
MDATA
Digital
Filter
RESET
VD+
SYNC
CS5322
CLKIN
CS R/W
RSEL
SCLK
SID
SOD
ERROR
DRDY
ORCAL
DECA
DECB
DECC
Preliminary Product Information
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
漏
Cirrus Logic, Inc. 1999
(All Rights Reserved)
OCT 鈥?9
DS454PP1
1