Service manual

GX30
6 – 4
CONFIDENTIAL
IC103 (AD6535): ANALOG BASEBAND
Pin No. Terminal name Input/Output Description of terminal
1* TDI Input Not used
2 VCXOEN Input VCXO supply
3 VBAT3 Input External interface regulator input
4* VEXT Output Not used
5 VCHG Input Charge supply
6 GATEDRIVE Output Charge DAC (FET) output control
7 ISENSE Input Charge current sense input
8 TEMP2 Input Temp sensor input for battery
9* AUXADC2 Input Not used
10 REFBB Output Baseband transmit & receive voltage reference
11 AGND2 – Analog baseband ground
12 IP Input/Output I-channel positive input/output
13 IN Input/Output I-channel negative input/output
14 QN Input/Output Q-channel positive input/output
15 QP Input/Output Q-channel negative input/outpu
16* RSVD_A16 – Not used
17* TMS Input Not used
18* TCK Input Not used
19 VBAT3 Input External interface regulator input
20* VEXT Output Not used
21 CHGOSC Input Charge oscillator capacitor
22 BATTYPE Input Battery type identification input
23 CHGDACREF Output Charge DAC reference
24 VBATSENSE Input Battery voltage sense input
25 TEMP1 Input Temp sensor input for camera
26 AUXADC1 Input Auxiliary ADC input for temp. sensor adjustment
27 REFOUT Output Voltage reference output
28 PA Output Power amplifier control output
29 AGND0 – Analog ground
30 AFCDAC Output Automatic frequency control DAC output
31 REF Output Voltage reference
32 AGND1 – Analog ground
33* TDO Output Not used
34* GPI Input Not used
35 VBAT1 Input Voltage controlled crystal oscillator regulator input
36* RSVD_C16 – Not used
37 INT Output Digital BB interrupt
38 ASDO Output Audio serial port data output
39 REFCHG Output Voltage reference output
40 VVCXO Output Voltage controlled crystal oscillator supply 2.71 - 2.79 V (VT)
41 ASDI Input Audio serial port data input
42 BSDO Output Baseband serial port data output
43 VUSB Output USB interface supply 3.0 - 3.6 V
44 VAPPGATE Output Application regulator pass device gate control
45 BSIFS Input Baseband serial port input framing signal
46 ASFS Output Audio serial port framing signal
47 VUSBIN Input USB interface regulator input
48 VAPP Output Application supply 2.75 - 3.3 V
49 BSOFS Output Baseband serial port output framing signal
50 BSDI Input Baseband serial port data input
51 VBAT2 Input Analog baseband regulator input
52* NC_G16 – Not used
53 CSDO Output Control serial port data output
54 CSDI Input Control serial port data input
55 VBAT2 Input Analog baseband regulator input
56 VABB Output Analog baseband supply
57 ASM Input Advanced state machine
58 MCLKEN Output Master clock enable
59 AOUT1P Output Receiver audio positive output
60 AOUT3L Output Headset receiver audio L-channel output
61 RXON Input Baseband receive section control
62 TXON Input Baseband transmit section control
63 AOUT1N Output Receiver audio negative output