CDB5581【PDF 1/26 页】BOARD EVAL FOR CS5581 ADC

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CDB5581

200 kSps, 16-bit, High-throughput ΔΣ ADC

Evaluation Board

Features

? Analog Input Channel to the CS5581 ADC

? Pre-configured to require a minimum number of external

connections to your data acquisition system.

? All functionality accessible through the connector interface

and board-level options.

? On-board 4.096 V Reference

? Pre-configured for Master mode SPI? communication to a

data capture system.

General Description

The CDB5581 is a versatile tool designed for evaluating the func-

tionality and performance of the CS5581 ADC (Analog-to-Digital

Converter). The SPI serial port on the CDB5581 evaluation board

is configured in Master mode and will start transmitting data after

power-up upon reset. This evaluation board is designed to connect

to your data capture system or will interface to the CapturePlus II

data acquisition system available from Cirrus Logic.

The CS5581 delta-sigma ADC produces fully settled conversions to

full specified accuracy at 200 kSps. This ability to produce fully set-

tled conversions for every sample makes it suitable for converting

multiplexed input signals. To help evaluate this feature, the CDB5581

includes two single-ended analog inputs multiplexed into the

CS5581. The multiplexer can be switched at the CS5581 ADC sam-

ple speed and the ADC will produce fully settled conversion data for

each input channel.

All evaluation board functionality for evaluating the CS5581 ADC is

accessed through the connector interface and board-level options.

Schematics in PADS? PowerLogic? format are available for

download at:

http://www.cirrus.com/en/products/pro/detail/P1120.html .

ORDERING INFORMATION

CDB5581

Evaluation Board

www.cirrus.com

OCT ‘09

DS796DB3

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