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+3.3V
+3.3V
EEPROMVCC
VI/O
VCC
VAUX
ANALOG_IA_POWER
AD7
AD15
AD19
IRING#
C/BE3#
AD25
INTA#
AD31
PCIRESET#
DRESET#
IRDY#
AD12
AD20
AD23
V_TXSIN
AD3
M_CLK
AD6
AD24
SERR#
AD10
IASLEEP
OH#
TRDY#
C/BE0#
M_TXSIN
TXA1
DEVSEL#
AD2
C/BE1#
AD22
RXA
TXA2
V_CTRL
RINGWAKE#
AD26
M_SCLK
V_SCLK
DRESET#
AD1
AD9
AD18
AD21
V_RXOUT
AD16
PAR
AD29
AD4
AD11
AD13
C/BE2#
AD28
AD30
AD17
PERR#
AD0
AD5
AD14
STOP#
M_RXOUT
FRAME#
IDSEL
M_CTRL
DSPKOUT
SROMIN
GNT#
V_STROBE
VC
PCICLK
AD8
AD27
REQ#
M_STROBE
VREF
PCIPME#
SROMCLK
SROMCS
SPEAKMUTE
SROMOUT
+
C31
10uF
C30
0.1uF
C28
0.1uF
L2
R15
1M
Y1
28.224MHz
C32
27pF
5%
C33
27pF
5%
+
C29
10uF
R16
0
R13
1k
R14
4.7k
IN1
INSULATOR
for Y1
R12
10K
D1
BAS16
U2
R6793
59
89
71
87
79
88
80
117
93
130
57
78
70
90
116
91
67
95
131
118
132
123
94
92
96
127
128
45
133
83
21
17
134
18
82
19
136
137
138
139
111
114
112
3
4
5
12
106
107
108
110
6
8
9
22
10
11
23
24
26
27
28
33
31
32
1
36
37
38
39
41
42
43
44
85
124
126
129
144
13
14
15
16
99
101
103
104
119
120
121
122
140
46
72
86
52
76
48
74
50
77
47
49
69
60
61
62
66
64
63
56
58
65
53
68
54
55
100
102
105
135
97
81
125
40
34
30
25
115
20
143
142
141
113
98
84 7
235
51
109
75
73
29
AVDD
V_RXOUT
VDD
V_TXSIN
VDD
V_SCLK
SET3V#
GPOH1/VpciEN
M_SCLK
AD31
AGNDV
AGND
AGND
V_STROBE
GPOH0/VauxEN
M_STROBE
AGNDM
M_CLK
AD30
GPOL1
AD29
INTA#
M_TXSIN
M_RXOUT
M_CTRL
GNT#
REQ#
GPOL0/DRESET#
AD28
SDXTAL1/XIN
PAR
STOP#
AD27
PERR#
SDXTAL2/XOUT
SERR#
AD26
AD25
AD24
CBE3#
INPUT4/EXT_L#
INPUT7/VauxDET
INPUT5/LCS_L#/RH_L#
AD23
AD22
AD21
CBE2#
INPUT0/RINGWAKE#
INPUT1
INPUT2/LCS#
INPUT3/IRING#
AD20
AD19
AD18
CBE1#
AD17
AD16
AD15
AD14
AD13
AD12
AD11
CBE0#
AD9
AD8
VIO1
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
PME#
PCIRST#
PCICLK
CLKRUN#
IDSEL
FRAME#
IRDY#
TRDY#
DEVSEL#
RESETEN/GPIO14
GPIO3
CID#/GPIO1
OH#/GPIO0
SROMCS
SROMOUT
SROMIN
SROMCLK
VIO2
SLEEPO/GPIO15
MCTRLSIN
V_CTRL
VCTRLSIN
MRXOUT
VRXOUT
MTXSIN
VTXSIN
MSTROBE
VSTROBE
VSCK
DSPKOUT
SPKOUT
TXA1
TXA2
RXA
VC
VREF
TELIN
TELOUT
MIC_V
IASLEEP
RESET#
AGND
AGND
GPIO8
VOICE#/GPIO2
VDD
VDD
VDD
VDD
VpciDET
VDD
VDD
VDD
VDD
VDD
VDD
GND
GND
GND
GND
GND
GND VDD
VDDGND
VCLKIN
NC
MSCK
MCLKIN
AD10
R10
1k
U3
93LC46B/SN
8
6
4
2
7
1
3
5
VDD
PE
DO
SK
PRE
CS
DI
GND
AD[0..31]
REQ#
STOP#
INTA#
OH#
C/BE3#
PERR#
TXA2
TXA1
IRING#
C/BE2#
DEVSEL#
IDSEL
C/BE0#
PAR
IRDY#
RXA
PCICLK
GNT#
DSPKOUT
RINGWAKE#
SERR#
FRAME#
TRDY#
PCIRESET#
C/BE1#
PCIPME#
SPKOUT
MIC_V
SPEAKMUTE
Ferrite
For Layout: Place Vref and VC
Components near U7 (R6793)
R16 Not Installed = +5V IA Operation
R16 Installed = +3.3V IA Operation
Figure 3. Bus Interface/Codec (BIC) (R6793: 144-Pin TQFP) Hardware Interface Signals