Sharp GX20 Service Manual - Page 134

IC102, AD6521ACA: ANALOG BASEBAND, Pin No., Terminal name, Input/Output, Description of terminal

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GX20 IC102 (AD6521ACA): ANALOG BASEBAND Pin No. 1 2 3* 4 5 6 7 8 9 10 11 12 13 14* 15 16 17 18 19* 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Terminal name DVDD1 DGND1 IDACREF AUXADC4 AUXADC2 AUXADC1 REFOUT REFCAP AVDD2 AFCDAC TDO TDI AGND4 IDACOUT AUXADC3 AUXADC5 AUXADC6 AGND2 NC (REFCAP2) QRXN TCK TMS QTXN QRXP VSDO VSFS QTXP IRXN VSDI BSOFS ITXN IRXP BSDO BSIFS ITXP AVDD1 DVDD2 Input/Output - - Output Input Input Input Input/Output Output - Output Output Input - Output Input Input Input - Output Input Input Input Output Input Output Output Output Input Input Output Output Input Output Output Output - - 38 BSDI Input 39 AGND1 - 40 VINAUXN Input 41 ASDI Input 42 ASFS Input 43 RAMPDAC Output 44 VINAUXP Input 45 ASDO Output 46 MCLK Input 47 ARSM Input 48 RXON Input 49 DGND3 - 50* BUZZER Output 51 AGND3 - 52 AVDD3 - 53* NC (MICCAP) Output 54 VINNORP Input 55 RESET Input 56 MCLKEN Output 57 ATSM Input 58 TXON Input 59 DVDD3 - 60 VOUTAUXN Output 61 VOUTNORN Output 62 VOUTNORP Output CONFIDENTIAL Description of terminal Digital core power supply (1.6V AVDD1/2) Digital ground Current DAC bias resistor connection, rset Auxiliary A/D converter input 4 (MVBAT) Auxiliary A/D converter input 2 (Camera thermal sensor) Auxiliary A/D converter input 1 (Jack detection) Buffered reference output/external bias voltage input Reference filter capacitor connection Auxiliary analog power supply (2.4V to 2.6V) Automatic frequency control signal output Test data output Test data input Analog substrate ground Current DAC output for battery charging Auxiliary A/D converter Input 3 (Battery sense) Auxiliary A/D converter Input 5 (Battery thermal sensor) Auxiliary A/D converter Input 6 Auxiliary analog ground Reserved for reference filter capacitor Differential analog input for quadrature receive signal Test clock Test mode select Differential analog output for quadrature transmit signal Differential analog input for quadrature receive signal Voiceband serial port data output Voiceband serial port input/output framing signal Differential analog output for quadrature transmit signal Differential analog input for in-phase receive signal Voiceband serial port data input Baseband serial port output framing signal Differential analog output for in-phase transmit signal Differential analog input for in-phase receive signal Baseband serial port data output Baseband serial port input framing signal Differential analog output for in-phase transmit signal Baseband Analog Power Supply (2.4V to 2.6V) Digital Interface Power Supply (The greater of DVDD1 or DVDD3 or AVDD3-0.2V, to maximum 3.3V) Baseband serial port data input Baseband analog ground Differential voiceband auxiliary input Auxiliary serial port data input Auxiliary serial port input/output framing signal Power ramping control signal output Differential voiceband auxiliary input (Jack mic audio input) Auxiliary serial port data output Master clock input Advance baseband receive state machine Baseband receive section power-on input Digital ground Buzzer output Voiceband analog ground Voiceband analog power supply (2.4 V to 2.7 V) Reserved for microphone Differential voiceband normal input (Mic audio input) Active low reset signal input Master clock enable Advance baseband transmit state machine Baseband transmit section power-on input Digital core power supply (1.6 V to AVDD1/2) Differential voiceband auxiliary output Differential voiceband normal output (Earpiece audio output) Differential voiceband normal output (Earpiece audio output) 6 - 2

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GX20
6 – 2
CONFIDENTIAL
IC102
(AD6521ACA): ANALOG BASEBAND
Pin No.
Terminal name
Input/Output
Description of terminal
1
DVDD1
–
Digital core power supply (1.6V AVDD1/2)
2
DGND1
–
Digital ground
3*
IDACREF
Output
Current DAC bias resistor connection, rset
4
AUXADC4
Input
Auxiliary A/D converter input 4 (MVBAT)
5
AUXADC2
Input
Auxiliary A/D converter input 2 (Camera thermal sensor)
6
AUXADC1
Input
Auxiliary A/D converter input 1 (Jack detection)
7
REFOUT
Input/Output
Buffered reference output/external bias voltage input
8
REFCAP
Output
Reference filter capacitor connection
9
AVDD2
–
Auxiliary analog power supply (2.4V to 2.6V)
10
AFCDAC
Output
Automatic frequency control signal output
11
TDO
Output
Test data output
12
TDI
Input
Test data input
13
AGND4
–
Analog substrate ground
14*
IDACOUT
Output
Current DAC output for battery charging
15
AUXADC3
Input
Auxiliary A/D converter Input 3 (Battery sense)
16
AUXADC5
Input
Auxiliary A/D converter Input 5 (Battery thermal sensor)
17
AUXADC6
Input
Auxiliary A/D converter Input 6
18
AGND2
–
Auxiliary analog ground
19*
NC (REFCAP2)
Output
Reserved for reference filter capacitor
20
QRXN
Input
Differential analog input for quadrature receive signal
21
TCK
Input
Test clock
22
TMS
Input
Test mode select
23
QTXN
Output
Differential analog output for quadrature transmit signal
24
QRXP
Input
Differential analog input for quadrature receive signal
25
VSDO
Output
Voiceband serial port data output
26
VSFS
Output
Voiceband serial port input/output framing signal
27
QTXP
Output
Differential analog output for quadrature transmit signal
28
IRXN
Input
Differential analog input for in-phase receive signal
29
VSDI
Input
Voiceband serial port data input
30
BSOFS
Output
Baseband serial port output framing signal
31
ITXN
Output
Differential analog output for in-phase transmit signal
32
IRXP
Input
Differential analog input for in-phase receive signal
33
BSDO
Output
Baseband serial port data output
34
BSIFS
Output
Baseband serial port input framing signal
35
ITXP
Output
Differential analog output for in-phase transmit signal
36
AVDD1
–
Baseband Analog Power Supply (2.4V to 2.6V)
37
DVDD2
–
Digital Interface Power Supply
(The greater of DVDD1 or DVDD3 or AVDD3-0.2V, to maximum 3.3V)
38
BSDI
Input
Baseband serial port data input
39
AGND1
–
Baseband analog ground
40
VINAUXN
Input
Differential voiceband auxiliary input
41
ASDI
Input
Auxiliary serial port data input
42
ASFS
Input
Auxiliary serial port input/output framing signal
43
RAMPDAC
Output
Power ramping control signal output
44
VINAUXP
Input
Differential voiceband auxiliary input (Jack mic audio input)
45
ASDO
Output
Auxiliary serial port data output
46
MCLK
Input
Master clock input
47
ARSM
Input
Advance baseband receive state machine
48
RXON
Input
Baseband receive section power-on input
49
DGND3
–
Digital ground
50*
BUZZER
Output
Buzzer output
51
AGND3
–
Voiceband analog ground
52
AVDD3
–
Voiceband analog power supply (2.4 V to 2.7 V)
53*
NC (MICCAP)
Output
Reserved for microphone
54
VINNORP
Input
Differential voiceband normal input (Mic audio input)
55
RESET
Input
Active low reset signal input
56
MCLKEN
Output
Master clock enable
57
ATSM
Input
Advance baseband transmit state machine
58
TXON
Input
Baseband transmit section power-on input
59
DVDD3
–
Digital core power supply (1.6 V to AVDD1/2)
60
VOUTAUXN
Output
Differential voiceband auxiliary output
61
VOUTNORN
Output
Differential voiceband normal output (Earpiece audio output)
62
VOUTNORP
Output
Differential voiceband normal output (Earpiece audio output)