Avance Logic ALS100, User Manual, Page: 36 / 48

ALS100/L/M User’s Guide 10070 1.0
26 AS9539 PC Motherboard Sound System Design
AS9539 PC Motherboard Sound System Design
The AS9539 sound system design is intended to be incorporated into the PC
motherboard and therefore no sound card is available for the evaluation of this
design.
The AS9539 sound system design is based on the ALS100 Integrated Audio
Subsystem ASIC and is a 16-bit ISA Plug and Play design with a Game/MIDI
port, audio inputs from ATAPI IDE/ Sony and Mitsumi CD-ROM audio con-
nectors, a Wavetable connector, and Microphone In and Line In jacks, and an
output from a Line Out jack. The AS9539 sound system design contains a
Yamaha OPL3 FM Synthesizer and has Wave Blaster compatible upgrade ca-
pability.
The AS9539 sound system design includes the Audio I/O and Game/MIDI Port
riser card. The riser card contains jacks for Microphone In, Line In, and Line
Out and a connector for the Game/MIDI port and plugs onto the motherboard.