CMI-8738 Datasheet, PDF (4/28 Pages) C-Media Electronics – C3DX PCI-Based HRTF 3D Extension Positional Audio Chip

Ver. 1.2
ANALOG PIN DESCRIPTION
CMI-8738/PCI-SX AUDIO Specification
PIN DESCRIPTION
AVDD
61,81
AGND
60,82
XADOUTL-R 64,65
XADCHL-R 66,67
XLFILT
68
XRFILT
69
XVREF
63
+5V
GND
AO1
AI/O
AI/O
AI/O
AI
XINTVREF
XCDL-R
XCDGND
XLNL-R
XAUXL-R
XPCSPKIN
XMICIN
XREARL-R
XGPBIO
XMBCSZ
NC
62
AI
71,72,70
AI
75,76
AI
77,78
AI
79
AI
80
AI
73,74
AI/O
87
O
85
I
57-59,86,98,101-108,113,118,1 -
23
Analog power
Analog ground
Line out
ADC filter
Left channel DAC filter
Right channel DAC filter
Reference Voltage (no use, left it
floating)
Reference Voltage
CD audio differential input
Line in or Rear speaker out
Aux. Line in
PC beep signal
Microphone in
Rear speaker out
General purpose I/O pin
Audio chip select (low:enable)
Reserved
C-MEDIA ELECTRONICS INC. Tel:[phone] Fax:[phone] URL : www.cmedia.com.tw
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