Sharp GX20, Руководство по обслуживанию

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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 RAMPDACOutput 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)