Features
Analog Passthrough Input
–
Four Stereo Line Input Jacks
–
Channel Mixer
Analog Output
–
Stereo Headphone Jack w/ HP Detect
Capability
–
Speaker Output via Differential Stereo
PWM Terminals and Audio Jacks
8- to 96-kHz S/PDIF Interface
–
Optical and RCA S/PDIF Input Jacks
–
CS8416 Digital Audio Receiver
I/O Stake Headers
–
External Control Port Accessibility
–
External DSP Serial Audio I/O Accessibility
Multiple Power Supply options via Battery or
External Power Supplies.
1.8 V to 3.3 V Logic Interface
FlexGUI S/W Control - Windows
–
Pre-Defined & User-Configurable Scripts
S/PDIF Input
http://www.cirrus.com
Evaluation Board for CS43L22
®
Compatible
Reset
USB
µ controller
Oscillator
PLL
(socket)
FPGA
(CS8416)
Clk/Data
SRC
PSIA Input
(CS8421)
Header
Copyright © Cirrus Logic, Inc. 2007
Description
Using the CDB43L22 evaluation board is an ideal way
to evaluate the CS43L22. Use of the board requires an
analog/digital signal source, an analyzer and power
supplies. A Windows PC-compatible computer is also
required in order to configure the CDB43L22.
System timing can be provided by the CS8416, by the
CS43L22 with supplied master clock, or via an I/O stake
header with a DSP connected. 1/8th inch audio jacks
are provided for the analog passthrough inputs and
HP/Line outputs. Two pairs of banana jacks and an ad-
ditional pair of 1/8th inch audio jacks are provided to
monitor the stereo differential speaker PWM output
from the CS43L22. Digital input connections are via
RCA phono or optical connectors to the CS8416
(S/PDIF Rx).
The Windows-based software GUI provided makes
configuring the CDB43L22 easy. The software commu-
nicates through the PC's USB port to configure the
board and FPGA registers so that all features of the
CS43L22 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
CDB43L22
2
I
C Interface
CS43L22
External System
Input Header
(All Rights Reserved)
CDB43L22
Analog
Passthrough
Input
Speaker
Outputs
Analog Output
(Line + Headphone)
Reset
Evaluation Board
OCTOBER '07
DS792DB1
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