Creative Sound Blaster AUD_EXT pinout

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