Kontron
10
JFLEX-DUALDVI User’s Guide
4.
MODULE FUNCTIONS
4.1
AC ’97 Sound Controller
The JFLEX-DualDVI 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.
The ALC650 also supports an AC’97 2.2 compliant S/PDIF out function which
allows easy connection from the PC to consumer electronic products, such as
AC3 decoder/speaker and mini disk.
All major operating systems support the interface.
The ALC650 provides:
•
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-duple x CODEC with independent and variable sampling rate
•
1 analog line-level stereo input with 5 -bit volume control:
LINE_IN, (CD_IN is
possible)
•
Power management capabilities
Line-In Connector X2
Line-Out Connector X1
Pin
Signalname
1
GND
2
L_IN Left
3
L_IN Right
Pin
Signalname
1
GND
2
L_OUT Left
3
L_OUT Right
