82C931 Datasheet, PDF (25/64 Pages) List of Unclassifed Manufacturers – Plug and Play Integrated Audio Controller

82C931
931-AD Mode Signal Descriptions (cont.)
3.3.1.5 Codec/Mixer Interface Signals (cont.)
Signal Name
AUXL
AUXR
OUTL
OUTR
MIXOUTL
MIXOUTR
CINL
CINR
VREF1
VREF2
OSCI
OSCO
Pin No.
94
1
92
93
91
89
90
88
2
86
7
8
Signal/Pin
Type (Drive)
I-Analog
I-Analog
O-Analog
O-Analog
O-Analog
O-Analog
I-Analog
I-Analog
O-Analog
O-Analog
I-Analog
O-Analog
Signal Description
Auxiliary Input Left
Auxiliary Input Right
Output Left
Output Right
Mixer Output Left
Mixer Output Right
ADC Filter Pin Left
ADC Filter Pin Right
Analog Common: Normally connected to AGND with a 0.1µF ceramic
capacitor in parallel with a 10µF electrolytic capacitor.
Voltage Reference: Nominal 1.85V reference available externally. Not
meant for current sourcing or sinking. Normally connected to AVS with
a 0.1µF ceramic capacitor in parallel with a 10µF electrolytic capacitor.
Oscillator Input: A 14.318MHz crystal oscillator is to be connected
across this pin and the OSCO pin.
Oscillator Output: See OSCI.
3.3.1.6 Serial Audio Interface Signals
Signal Name
SADI
SADO
SCLK
FSYNC
Pin No.
19
20
21
22
Signal/Pin
Type (Drive)
I-TTL
O-TTL
I/O-TTL
I/O-TTL
Signal Description
Serial Audio Data Input
Serial Audio Data Output
Serial Audio Clock
Serial Audio Synchronization
3.3.1.7 Power and Ground Pins
Signal Name
VCC
GND
AVCC
AGND
Pin No.
18, 58, 67
17, 27, 40, 57,
66
3, 6, 87
4, 5, 85
Signal/Pin
Type (Drive)
P
G
Signal Description
Power Connection
Ground Connection
P
Analog Power Connection
G
Analog Ground Connection
912-3000-035
Revision: 2.1
OPTi
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