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GX15
IC102 VHIQ5RW45BF-1L (Q5RW45B): 4.5 V REGULATOR
Pin No.
Terminal name
1
GND
2
VDD
3
VOUT
4
CE
IC103 (AD6537B): ANALOGUE BASEBAND
Pin No.
Terminal name
1*
TDI
2
VCXOEN
3
VBAT3
4
VEXT
5
VCHG
6
GATEDRIVE
7
ISENSE
8*
TEMP2
9
AUXADC2
10
REFBB
11
AGND2
12
IP
13
IN
14
QN
15
QP
16*
NC_A16
17*
TMS
18*
TCK
19
VBAT3
20
VEXT
21*
NC_B05
22
BATTYPE
23*
NC_B07
24
VBATSENSE
25
TEMP1
26
AUXADC1
27
REFOUT
28
PA
29
AGND0
30
AFCDAC
31
REF
32
AGND1
33*
TDO
34*
GPI
35
VBAT1
36*
NC_C16
37
INT
38
ASDO
39
REFCHG
CONFIDENTIAL
Input/Output
–
Earth
–
Power supply
Output
Output
Input
Chip enable
VDD
2
VREF
4
CE
Input/Output
Input
Not used
Input
VCXO supply
Input
External interface regulator input
Output
External interface supply
Input
Charge supply
Output
Charge DAC (FET) output control
Input
Charge current sense input
Input
Not used
Input
Auxiliary ADC input for hands free kit (earphone) detection
Output
Baseband transmit & receive voltage reference
–
Analogue baseband earth
Input/Output
I-channel positive input/output
Input/Output
I-channel negative input/output
Input/Output
Q-channel positive input/output
Input/Output
Q-channel negative input/output
–
Not used
Input
Not used
Input
Not used
Input
External interface regulator input
Output
External interface supply
–
Not used
Input
Battery type identification input
–
Not used
Input
Battery voltage sense input
Input
Temperature sensor input
Input
Auxiliary ADC input for temp. sensor adjustment
Output
Voltage reference output
Output
Power amplifier control output
–
Analogue earth
Output
Automatic frequency control DAC output
Output
Voltage reference
–
Analogue earth for voltage reference
Output
Not used
Input
Not used (Pull down)
Input
Voltage controlled crystal oscillator regulator input
–
Not used
Output
Digital BB interrupt
Output
Audio serial port data output
Output
Voltage reference output
Description of terminal
3
+
-
CURRENT LIMIT
1
Description of terminal
6 – 2
VOUT
GND
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