Kontron coolMonster/PM, Руководство пользователя

Страница: 40 / 90

17 16BSound Interface
Kontron User's Guide
coolMonster/PM
40
17
16B
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. 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
79B
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 Function
1 RECHTS Line-level stereo output right.
2 ASGND Analog ground.
3 LINKS Line-level stereo output left.
4 AUXAR_C Auxiliary A input right. Normally intended for connection to
an internal or external CD-ROM analog output.
5 MIC_C Mono Microphone input.
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.