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17
S ound Interface
1 6 B
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. The ALC650 incorporates 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
®
17.1
C onnector
7 9 B
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
2
3
4
5
6
To find this connector on the board and for mating connector information see Appendix E: Connector
Layout.
Kontron User's Guide
coolMonster/PM
RECHTS
ASGND
LINKS
AUXAR_C
Auxiliary A input right. Normally intended for connection to
an internal or external CD-ROM analog output.
MIC_C
AUXAL_C
Auxiliary A input left. Normally intended for connection to an
internal or external CD-ROM analog output.
40
Function
Line-level stereo output right.
Analog ground.
Line-level stereo output left.
Mono Microphone input.
17 16BSound Interface
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