Cirrus Logic CDB5571 - Manual

Copyright  Cirrus Logic, Inc. 2009
(All Rights Reserved)
www.cirrus.com
CDB5571
100 kSps, 16-bit, High-throughput
ΔΣ
ADC
Evaluation Board
Features
 Analog Input Channels to the CS5571 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 CDB5571 is a versatile tool designed for evaluating the func-
tionality and performance of the CS5571 ADC (Analog-to-Digital
Converter). The SPI serial port on the CDB5571 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 CS5571 delta-sigma ADC produces fully settled conversions to
full specified accuracy at 100 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
CDB5571 includes two single-ended analog inputs multiplexed into
the CS5571. The multiplexer can be switched at the CS5571 ADC
sample speed and the ADC will produce fully settled conversion data
for each input channel.
All evaluation board functionality for evaluating the CS5571 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
CDB5571 Evaluation Board
OCT ‘09
DS768DB4