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Old 07-28-08, 08:43 AM   #21
nekrosoft13
I'm Geralt
 
Join Date: Oct 2005
Location: Chicagoland, once a year in Poland
Posts: 24,366
Default Re: Audio plug on GTX 2xx cards

AUD_EXT connector pin assignments

Note

ADC stands for Analog-to-Digital Converter

Pin Name Description
1 VCC +5V power supply
2 VCC +5V power supply
3 GND Ground
4 AC97CLK 24.5 MHz clock output
5 GND Ground
6 GP_SPDIFIN#2 SPDIF input signal
7 GND Ground
8 GND Ground
9 SPDIFO#3 SPDIF Out signal
10 GPO1 General Purpose Output #1
11 GPO2 General Purpose Output #2
12 GND Ground
13 GPO0 General Purpose Output #0
14 GND Ground
15 GP_SPDIFIN1 SPDIF Input signal
16 GND Ground
17 SPDIFO#0 SPDIF Out signal

18 GND Ground
19 SPDIFO#1 SPDIF Out signal
20 GND Ground
21 GND Ground
22 SPDIFO#2 SPDIF Out signal
23 GPI0 Digital Input (GP Input 0; Reserved)
24 GPI1 Digital Input, (GP Input 1; Reserved)
25 OUTMIDI MIDI Output
26 GND Ground
27 INMIDI MIDI Input
28 GND Ground
29 KEY
30 KEY
31 ADCSDO2 I2S audio data input.
32 GND Ground
33 ADCSDO1 I2S audio data input.
34 GND Ground
35 ADCSDO0 I2S audio data input.
36 GND Ground
37 I2SCLK I2S serial bit clock.

38 GND Ground
39 I2SFS Frame sync.
40 GND Ground

CD_IN/AUX_IN connector pin assignments

Pin Description I/O
1 Left Channel In
2 Ground -
3 Ground -
4 Right Channel In

VOL_CTRL connector pin assignments (for PCI cards)

Pin Description I/O
1 VOLDECB In
2 GND -
3 VOLINCB In
4 GND -

CD_SPDIF In connector pin assignments

Pin Description I/O
1 GND -
2 SPDIF In

SPDIF_EXT connector pin assignments
For 12-pin SPDIF connector

Pin Description
1 SPDIFO0
2 GND
3 KEY
4 VCC
5 GND
6 SPDIFIN
7 NC
8 NC
9 SPDIFO1
10 GND
11 SPDIFO2
12 SPDIFO3

SPDIF_CONN connector pin assignments
For 6-pin SPDIF connector

Pin Description
1 SPDIFO0
2 GND
3 KEY
4 VCC
5 NC
6 NC

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