CDB42406
Evaluation Board For CS42406
Features
Single-ended analog inputs and outputs
CS8406 S/PDIF digital audio transmitter
CS8416 S/PDIF digital audio receiver
Header for optional external configuration of
CS42406
Header for external DSP serial audio I/O
3.3 V to 5.0 V Logic Interface
14 Pre-defined Board Setup Options
Demonstrates recommended layout and
grounding arrangements
Windows compatible software interface to
configure CS42406 and intra-board
connections
Description
The CDB42406 demonstration board is an excellent
means for evaluating the CS42406 CODEC. Evaluation
requires an analog/digital signal source and analyzer,
and power supplies. Optionally, a Windows PC compat-
ible computer may be used to evaluate the CS42406
DAC in control port mode.
System timing can be provided by the CS42406, by the
CS8416 phase-locked to its S/PDIF input, by an I/O
stake header or by an on-board oscillator. RCA phono
jacks are provided for the CS42406 analog outputs and
inputs. Digital data I/O is available via RCA phono or op-
tical connectors to the CS8416 and CS8406. 14 pre-
defined board setup options are selectable using a 4-po-
sition DIP switch.
The Windows software provides a GUI to make configu-
ration of the DAC easy. The software communicates
through the PC’s parallel port to configure the control
port registers so that all features of the CS42406 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.
ORDERING INFORMATION
CDB42406
I
Evaluation Board
DAC Control Port
S/P DIF
Output
CS8406 S/PDIF
Transmitter
DAC/A DC
Setup
2-Ch.
Single-Ended
A nalog Inputs
Board
S etup
I
2
C/SPI
CP LD
Clock/Data
Router
PCM Clock/
Data
CS42406
S/P DIF
Input
CS8416 S/PDIF
Receiver
DSP I/O Header
M aster Clock*
6-Ch.
Single-Ended
A nalog Outputs
Crystal
Oscillator
*M aster Clock is selectable between one of the following:
1) S/PDIF R eceiver,
2) C rystal oscillator, or
3) D SP I/O Header.
All selections are buffered.
Cirrus Logic, Inc.
www.cirrus.com
Copyright Cirrus Logic, Inc. 2003
(All Rights Reserved)
AUG ‘03
DS614DB1
1
CIRRUS [ CIRRUS LOGIC ]
