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KONTRON
17. Sound Interface
The coolMONSTER/PM uses a Realtek ALC650 sound codec. The ALC650
is an 18-bit, full duplex AC'97 2.2 compatible stereo audio
CODEC designed for PC multimedia systems, including host/soft
audio
and
AMR/CNR
based
designs.
proprietary converter technology to achieve a high SNR, greater
than 90 dB.
All major operating systems support the interface.
The ALC650 features:
†
High-performance CODEC with high S/N ratio (>90 dB)
†
18-bit ADC and 20-bit DAC resolution
†
Compliant with AC'97 2.2 Specifications
†
18-bit stereo full-duplex CODEC with independent and
variable sampling rate
†
One analog line-level stereo input with 5-bit volume
control: LINE_IN, (CD_IN is possible)
†
Stereo Output with 5-bit volume control
†
MIC input
†
Power-management capabilities
†
Embedded 50mW/20ohm OP at front LINE output
CMP/VC and CMP/VE User's Guide
47
The
ALC650
incorporates
Power Interface
17.1 Connector
The sound connector is available through Connector X8 (6 pins).
The following table shows the pin-out of the connector.
Header
Pin
Signal Name
1
RECHTS
2
ASGND
3
LINKS
4
AUXAR_C
Auxiliary A input right. Normally intended for connection
to an internal or external CD-ROM analog output.
5
MIC_C
6
AUXAL_C
Auxiliary A input left. Normally intended for connection
to an internal or external CD-ROM analog output.
To find this connector on the board and for mating connector
information see Appendix E: Connector Layout.
17.2 Configuration
From the BIOS Setup Utility you can set the onboard legacy AC97
audio controller to Disabled or Enabled (default). Refer to I/O
Device Configuration submenu in the Appendix B: BIOS operation
for more details.
You can download available drivers for the sound controller from
the
Kontron
Web
site
or
use
manufacturer Realtek. Search for ALC650 drivers for the required
operating.
17.3 Technical Support for Sound
If problems occur, you can solve some of them by using the
latest drivers for the Sound controller. Kontron provides you
with the latest tested drivers, which can differ from newer
ones. For further technical support, contact either Kontron, or
obtain
support
information
and
from Realtek.
Power Interface
48
KONTRON
Function
Line-level stereo output right.
Analog ground.
Line-level stereo output left.
Mono Microphone input.
the
drivers
provided
by
the
downloadable
software
updates
CMP/VC and CMP/VE User's Guide
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