Cirrus Logic CDB5581 User Manual
Adc evaluation board
Copyright
Cirrus Logic, Inc. 2009
(All Rights Reserved)
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:
.
ORDERING INFORMATION
CDB5581 Evaluation
Board
OCT ‘09
DS796DB3