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CS4231A Datasheet, PDF (57/76 Pages) List of Unclassifed Manufacturers – PARALLEL INTERFACE MULTIMEDIA AUDIO CODEC
Semiconductor Corporation
CDB4231/4248
CS4231/4248 Evaluation Board
Features
• PC ISA Plug-In Card
• Serial Audio Data Port Header for
CS4231A Support
• Mono In / Mono Out Support
• Microphone Pre-Amplifier
• Line Out / Headphone Circuit
• Microsoft Windows™ 3.1 Software
Support
General Description
The CDB4231/4248 evaluation board supports all the
features of the CS4231A, CS4231, and CS4248. The
DMA, IRQ, and base address are all selectable via on-
board jumpers. Four stereo jacks provide MIC in,
AUX1 in, LINE in, and Line/Headphone out. In addi-
tion, on-board headers provide an internal analog
CD-ROM interface via the AUX2 inputs, and support
for the mono in and mono out capabilities of the
CS4231. The CDB4231 also includes a serial port
header to support the expanded features of the
CS4231A.
Software that runs under Microsoft Windows™ 3.1 is
also provided along with an extensive diagnostics pro-
gram.
ORDERING INFORMATION: CDB4231, CDB4248
Speaker Speaker
Out
In
Base Address
J18
Address
Decode
Digital
Patch
Area
INT
DMA DMA
PLAY CAPTURE
CS4231A/
CS4231/
CS4248
PC Bus
CDROM IN (Aux2)
A = 1/2
A = 1/2
Line In
A=8
Mic In
A = 1/2
Aux1 In
A=2
Line/Head-
phone Out
Crystal Semiconductor Corporation
P.O. Box 17847, Austin, TX 78760
(512) 445 7222 Fax: (512) 445 7581
SEP ’95
DS111DB7
57