Sharp GX30 Service Manual - Page 125

Sound IC audio L-channel input

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Pin No. 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89* 90* 91* 92* 93 94 95 96 97 98 99 100 101 102 103 104 105* 106* 107* 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 Terminal name AOUT3R MCLK CSFS AGND3 LIGHT1 ABBRESET DGND LIGHT2 LIGHT3 VCORE VCOREIN LGND VMIC VCORE VMEMIN AIN2P AIN1P CRST VMEMIN VMEMSEL VBAT5 VBAT4 VRTCIN DBBON SGND AOUT2N SPWR AOUT2P NC_R12 AIN3L AIN3R AIN2N AIN1N RESET VMEM VMEM VBACK VBACKSEL VSIM VRTC SGND AOUT2N SPWR AOUT2P LDOEN KEYOUT KEYON IBIAS AGND4 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 AGND0 Input/Output Output Input Input - Output Input - Output Output Output Input - Output Output Input Input Input Output Input Input Input Input Input Input - Output Input Output - Input Input Input Input Output Output Output Output Input Output Output - Output Input Output Output Output Input Output CONFIDENTIAL Description of terminal Headset receiver audio R-channel output Master clock Control serial port framing signal Analog audio ground Charge LED control Reset input Digital ground USB charge enable Key-pad LED control Digital core supply 1.72 - 1.9 V Digital core regulator input Light driver ground Microphone supply 2.4 - 2.6 V Digital core supply 1.72 - 1.9 V Memory interface regulator input Headset mic audio positive input Mic audio positive input Power-on reset capacitor Memory interface regulator input Memory supply voltage selection Back-up battery regulator input SIM interface regulator input Real-time clock regulator input Digital BB supply regulator on signal AOUT2P/N ground Not used Not used Not used Not used Sound IC audio L-channel input Sound IC audio R-channel input Headset mic audio negative input Mic audio negative input Reset output Memory interface supply 2.75 - 3.05 V Memory interface supply 2.75 - 3.05 V Back-up battery supply 2.72 - 3.05 V Back-up battery supply voltage selection SIM interface supply 2.75 - 2.95 V Real-time clock supply 1.6 - 2.0 V AOUT2P/N ground Not used Not used Not used Regulator enable output Power-on key output Power-on key input Regulator bias current reference Power management analog ground Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply Thermal ground for power supply 6 - 5 GX30

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GX30
6 – 5
CONFIDENTIAL
64
AOUT3R
Output
Headset receiver audio R-channel output
65
MCLK
Input
Master clock
66
CSFS
Input
Control serial port framing signal
67
AGND3
–
Analog audio ground
68
LIGHT1
Output
Charge LED control
69
ABBRESET
Input
Reset input
70
DGND
–
Digital ground
71
LIGHT2
Output
USB charge enable
72
LIGHT3
Output
Key-pad LED control
73
VCORE
Output
Digital core supply 1.72 - 1.9 V
74
VCOREIN
Input
Digital core regulator input
75
LGND
–
Light driver ground
76
VMIC
Output
Microphone supply 2.4 - 2.6 V
77
VCORE
Output
Digital core supply 1.72 - 1.9 V
78
VMEMIN
Input
Memory interface regulator input
79
AIN2P
Input
Headset mic audio positive input
80
AIN1P
Input
Mic audio positive input
81
CRST
Output
Power-on reset capacitor
82
VMEMIN
Input
Memory interface regulator input
83
VMEMSEL
Input
Memory supply voltage selection
84
VBAT5
Input
Back-up battery regulator input
85
VBAT4
Input
SIM interface regulator input
86
VRTCIN
Input
Real-time clock regulator input
87
DBBON
Input
Digital BB supply regulator on signal
88
SGND
–
AOUT2P/N ground
89*
AOUT2N
Output
Not used
90*
SPWR
Input
Not used
91*
AOUT2P
Output
Not used
92*
NC_R12
–
Not used
93
AIN3L
Input
Sound IC audio L-channel input
94
AIN3R
Input
Sound IC audio R-channel input
95
AIN2N
Input
Headset mic audio negative input
96
AIN1N
Input
Mic audio negative input
97
RESET
Output
Reset output
98
VMEM
Output
Memory interface supply 2.75 - 3.05 V
99
VMEM
Output
Memory interface supply 2.75 - 3.05 V
100
VBACK
Output
Back-up battery supply 2.72 - 3.05 V
101
VBACKSEL
Input
Back-up battery supply voltage selection
102
VSIM
Output
SIM interface supply 2.75 - 2.95 V
103
VRTC
Output
Real-time clock supply 1.6 - 2.0 V
104
SGND
–
AOUT2P/N ground
105*
AOUT2N
Output
Not used
106*
SPWR
Input
Not used
107*
AOUT2P
Output
Not used
108
LDOEN
Output
Regulator enable output
109
KEYOUT
Output
Power-on key output
110
KEYON
Input
Power-on key input
111
IBIAS
Output
Regulator bias current reference
112
AGND4
–
Power management analog ground
113
AGND0
–
Thermal ground for power supply
114
AGND0
–
Thermal ground for power supply
115
AGND0
–
Thermal ground for power supply
116
AGND0
–
Thermal ground for power supply
117
AGND0
–
Thermal ground for power supply
118
AGND0
–
Thermal ground for power supply
119
AGND0
–
Thermal ground for power supply
120
AGND0
–
Thermal ground for power supply
121
AGND0
–
Thermal ground for power supply
122
AGND0
–
Thermal ground for power supply
123
AGND0
–
Thermal ground for power supply
124
AGND0
–
Thermal ground for power supply
125
AGND0
–
Thermal ground for power supply
126
AGND0
–
Thermal ground for power supply
127
AGND0
–
Thermal ground for power supply
Pin No.
Terminal name
Input/Output
Description of terminal