GX20
6 – 24
CONFIDENTIAL
IC831 VHIPF08123B-1L (PF08123B): RF POWER AMP.
IC881 VHIHD155173-1L (HD155173): AUTO POWER CONTROL
Pin No.
Terminal name
Input/Output
Description of terminal
1
Pin GSM
Input
Input power from TXVCO (GSM)
2
Vapc
Input
Power control voltage from APCIC
3
Vdd1
–
Power supply
4
Pout GSM
Output
Output power (GSM)
5
Pout DCS
Output
Output power (DCS/PCS)
6
Vdd2
–
Power supply
7
Vctl
Input
Band select switch
8
Pin DCS
Input
Input power from TXVCO (DCS/PCS)
9
GND
–
Ground
Pin No.
Terminal name
Input/Output
Description of terminal
1
VAPC1
Output
APC voltage output terminal (GSM900)
2
IN1(-)
Input
Output amp negative terminal (GSM900)
3
IN(+)
Input
Output amp positive terminal
4
VCC1
Input
Power supply
5
DACin
Input
DAC voltage input terminal
6
AMPIB
Input
DAC amp input terminal
7
AMPO
Output
DAC amp output terminal
8
Mode SW
Input
Mode switch
9
VCC2
Input
Power supply
10
PS
Input
Power save switch
11
GND2
–
Ground
12
RFin1
Input
GSM900 signal input terminal
13
RFin2
Input
DCS/PCS signal input terminal
14
GND1
–
Ground
15
IN2(-)
Input
Output amp negative terminal (DCS/PCS)
16
VAPC2
Output
APC voltage output terminal (DCS/PCS)
Pin DCS
Pin GSM
Pout GSM
Pout DCS
Bias circuit
Vctl
Vdd1
Vdd2
Vapc
7
8
1
6
5
4
2
3
Содержание GX20
Страница 38: ...GX20 2 32 CONFIDENTIAL Figure 64 Contact points Figure 65 Turning power on Points Push ...
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