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Copyright

(All Rights Reserved)

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

Preliminary Product Information

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

CDBCapture+

Data Capture and Interface Board for a PC

Features

converters.

and Altera programmable logic device

data analysis.

histogram, and DNL analysis options.

equipment.

pin serial ribbon cable or S/PDIF Link.

CDBCAPTURE and the CDBCAPTAUDIO

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+

Signal

Source

Power Supply Inputs

CRYSTAL ADC CDBXXXX EVALUATION BOARD

CDBCapture+

+5 V Power Supply Input

RS232

Cable

IBM Compatible PC

Evaluation

Software

Input

Serial

Cable

S/PDIF

Link

NOV ‘98

DS327F1