CDB5451A
CDB5451A Evaluation Board and Software
Features
Direct Shunt Sensor and Current
Transformer Interface for 3-Phase Power
On-Board Voltage Reference
On-board crystal for XIN
Digital Interface to PC
Lab Windows/CVI
™
Evaluation Software
-
-
-
-
Real-Time RMS calculation
Fast Fourier Transform (FFT) Analysis
Time Domain Analysis
Noise Histogram Analysis
General Description
The CDB5451A is an inexpensive tool designed to eval-
uate the functionality/performance of the CS5451A 6-
channel A/D Converter. In addition to this data sheet, the
CS5451A Data Sheet is required in conjunction with the
CDB5451A Evaluation Board.
Six terminal block connectors serve as inputs to the
CS5451A’s six analog input pairs. The CDB5451A in-
cludes an optional voltage reference source for
CS5451A. A 4.096MHz crystal is provided as a source
for the CS5451A XIN pin, or an external clock source can
be supplied by the user. Digital output data from the
CS5451A is transferred to the user’s IBM-compatible PC
via the included 25-pin parallel port cable.
The CDB5451A includes PC software, allowing the user
to perform data capture (includes option for time domain
analysis, histogram analysis, and frequency domain
analysis). The software also allows real-time RMS calcu-
lation/analysis to be performed simultaneously on all six
channels.
ORDERING INFORMATION
CDB5451A
VA-
VA+
+5 VIN
GND
VD+
Evaluation Board
Charge
Pump
Circuitry
3V
Regulator
(Not Populated)
Control Switches
VIN1+
VIN1-
IIN1+
IIN1-
VIN2+
VIN2-
IIN2+
IIN2-
VIN3+
VIN3-
IIN3+
IIN3-
CPD
VA-
VA+
GAIN
OW RS
RESET
FSO
SDO
CLK
SE
Reset Circuit
Serial-to-
Parallel
Interface
Crystal
4.096 MHz
DB25
To PC
CS5451A
XIN
IN
V
REF
OUT
Header
V
REF
Voltage
Reference
Preliminary Product Information
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
©
Cirrus Logic, Inc. 2001
(All Rights Reserved)
Nov ‘03
DS458DB3
1
CIRRUS [ CIRRUS LOGIC ]
