Instruction Manual
XUP Virtex-II Pro Development System www.xilinx.com 41
UG069 (v1.0) March 8, 2005
Using the AC97 Audio CODEC and Power Amp
R
Figure 2-12: AC97 Audio CODEC
PC_BEEP
RESET
LINE_IN_R
LINE_IN_L
MIC1
MIC2
CD_4
CD_GND
CD_L
VIDEO_R
VIDEO_L
AUX_R
AUX_L
PHONE_IN
MONO_OUT
SPDIF
SDATA_OUT
SDATA_IN
SYNCH
BIT_CLOCK
CS0
CS1
AMP_PWR_DWN
LNLVL_OUT_R
LNLVL_OUT_L
LINE_OUT_R
LINE_OUT_L
47
46
45
6
10
8
5
11
41
39
38
35
12
24
23
21
22
20
19
18
17
16
15
14
13
37
48
R167 56R2 1%
R168 56R2 1%
R18
R169
3K3
R170
3K3
GND
R15
3K3
VCC3V3
AUDIO_RESET_Z
C31C30C29
C32
C28C27C26
AUDIO_5V
AUDIO_GND
BEEP_TONE
C33
R16
6K8
R17
4K7
1UF
AUDIO_GND
BEEP_TONE_IN
AUDIO_LINE_IN_RIGHT
AUDIO_LINE_IN_LEFT
MIC_IN
MIC_POWER
MONO
1UF
R19
C34
C35
C36
C38
C37
C40 C41 C42
R21
1M0
Y1
24.576 MHz
22PF 22PF
GND GND
AUDIO_5V
C44
100NF
10UF 16V
C45
10K
AUDIO_GND
AUDIO_GND
AUDIO_GND
1UF
1UF
C43
C39
R20
47NF
100NF
270PF
270PF
47K
AUDIO_GND
10UF 16V
0.1UF0.1UF
1UF
VCC3V3
AC97_SDATA_IN
AC97_BIT_CLOCK
AC97_SDATA_OUT
AC97_SYNCH
AUDIO_AMP_SHUTDOWN
AUDIO_LINE_OUT_RIGHT
AUDIO_LINE_OUT_LEFT
AUDIO_RIGHT
AUDIO_LEFT
10K
10UF 16V
0.1UF 0.1UF
0.1UF
AUDIO_GND
AFILT1
AFLT2
FILT_L
FILT_R
CX3D
RX3D
VREF_OUT
VREF
XTAL_IN
XTAL_OUT
29
30
31
32
34
33
28
27
2
3
AVSS0
AVSS1
AVDD0
AVDD1
NC0
NC1
NC2
DVDD0
DVDD1
DVSS0
DVSS1
26
42
25
38
44
43
40
1
9
4
7
AC97 CODEC
U9
AUDIO MIXER AND CODEC
UG069_14_101804