Cirrus Logic CDB5451A - Manual

Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright © Cirrus Logic, Inc. 2001
(All Rights Reserved) http://www.cirrus.com
CDB5451A
CDB5451A Evaluation Board and Software
Nov ‘03
DS458DB3
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 Evaluation Board
VA-
VA+
GAIN
OW RS
SE
RESET
FSO
SDO
CLK
CPD
V
REF
IN OUT
CS5451A
VIN1+
VIN1-
IIN1+
IIN1-
VIN2+
VIN2-
IIN2+
IIN2-
VIN3+
VIN3-
IIN3+
IIN3-
Voltage
Reference
V
REF
Charge
Pump
Circuitry
3 V
Regulator
Reset Circuit
Control Switches
Crystal
4.096 MHz
+5 VIN VA+ VA- VD+ GND
XIN
Serial-to-
Parallel
Interface DB2
5
To PC
(Not Populated)
Header