Cirrus Logic CDB5345 - Manual

Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
Cirrus Logic, Inc.
www.cirrus.com
CDB5345
Evaluation Board for CS5345
Features
z Single-ended Analog Inputs
z Single-ended Analog Outputs
z CS8406 S/PDIF Digital Audio Transmitter
z Header for Optional External Software
Configuration of CS5345
z Header for External PCM Serial Audio I/O
z 3.3 V Logic Interface
z Pre-defined Software Scripts
z Demonstrates Recommended Layout and
Grounding Arrangements
z Windows ® Compatible Software Interface
to Configure CS5345 and Inter-board
Connections
ORDERING INFORMATION
CDB5345 Evaluation Board
Description
The CDB5345 evaluation board is an excellent means
for evaluating the CS5345 ADC. Evaluation requires an
analog signal source and analog/digital analyzer, and
power supplies. A Windows
®
PC compatible computer
must be used to evaluate the CS5345.
System timing for the I²S, Left-Justified and Right-Justi-
fied interface formats can be provided by the CS5345,
the CS8406, or by a PCM I/O stake header with an ex-
ternal source connected.
RCA phono jacks are provided for the CS5345 analog in-
puts and outputs. Digital data input is available via RCA
phono or optical connectors to the CS8406.
The Windows
®
software provides a GUI to make config-
uration of the CDB5345 easy. The software
communicates through the PC’s serial port to configure
the control port registers so that all features of the
CS5345 can be evaluated. The evaluation board may
also be configured to accept external timing and data
signals for operation in a user application during system
development.
I
CS5345
FPGA
CS8406
Passive Input Filter
Active Input Filter
Header
Microphone Input
Active Output Filter
Canned
Oscillator
Control Port Interface
Test Points
M
U
X
Master Clock
Sub-clocks and Data
FEB ‘05
DS658DB1