CDBCapture+
Data Capture and Interface Board for a PC
Features
l
Versatile
General Description
The CDBCapture+ interface board is a development tool
that interfaces a Crystal
®
analog to digital converter to a
PC-compatible computer. Digital data is collected in a
high speed digital SRAM, then transferred to the PC over
a serial COM port. Evaluation software is included to an-
alyze the data and demonstrate the analog to digital
converter’s performance.
The CDBCapture+ interface board is designed to be
easily interfaced to Crystal evaluation boards. Applica-
tion software is loaded via the PC’s serial COM port. The
software adjusts the CDBCapture+ interface board for
the appropriate signal timing and polarity, coding format
and number of bits, thus allowing the same hardware to
be used with a variety of Crystal ADCs.
Evaluation software is included with the CDBCapture+
interface board. The software was developed with Lab-
Windows
®
, a software development system for
instrument control, data acquisition, and analysis appli-
cations. The evaluation software permits time domain,
frequency domain, histogram, and DNL analysis.
ORDERING INFORMATION
CDBCapture+
measurement tool used for the
evaluation of Crystal
®
analog to digital
converters.
l
Updatable via on-board RAM-based DSP
and Altera programmable logic device
l
Easy interface to a PC compatible computer.
l
LabWindows
®
based evaluation software for
data analysis.
l
Includes time domain, FFT, noise distribution
histogram, and DNL analysis options.
l
Can be used to evaluate the ADC in your
equipment.
l
Interfaces to an ADC evaluation board via 10-
pin serial ribbon cable or S/PDIF Link.
l
Enhanced Replacement for the
CDBCAPTURE and the CDBCAPTAUDIO
Power Supply Inputs
S/PDIF
Link
+5 V Power Supply Input
RS232
Cable
IBM Compatible PC
Source
Signal
Input
Serial
Cable
CRYSTAL ADC CDBXXXX EVALUATION BOARD
CDBCapture+
Evaluation
Software
Preliminary Product Information
Cirrus Logic, Inc.
Crystal Semiconductor Products Division
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
©
Cirrus Logic, Inc. 1998
(All Rights Reserved)
NOV ‘98
DS327F1
1
CIRRUS [ CIRRUS LOGIC ]
