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LG Electronics Inc.
1.2.3 RFR6500 – LNA part (U105)
noise figure, high gain, high intercept point and high reverse isolation. The frequency selectivity characteristic of
mobile phone is mostly determined by LNA.
The specification of VX9700 LNA is described below:
Low gain
Middle gain
High gain
Units
Cellular
PCS
Cellular
PCS
Cellular
PCS
Gain
-19
-20
3
-3
14
15
dB
Noise Figure
20
20
4.5
6
1.3
1.1
dB
Input IP3
10
10
5
10
7
3
dBm
Parameter
1.2.4 GPS LNA(U107)
The characteristics of Low Noise Amplifier (LNA) are low noise figure, high gain, high intercept point and high
reverse isolation. The frequency selectivity characteristic of mobile phone is mostly determined by LNA.
The specification of VX9700 GPS LNA is described below
dBm
+7
IIP3
dBm
3.4
1dB compression point
dB
0.77
Noise Figure
dB
13.1
Gain
Units
GPS Band
Parameter
1.2.5 RX RF SAW FILTER(F101, F107)
The main function of RX RF SAW filter is to attenuate mobile phone spurious frequency, attenuate noise amplified
by the LNA and suppress second harmonic originating in the LNA.
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Summary of Contents for VX9700
Page 26: ... 25 132 LG Electronics Inc VX9700 28 Powering Down Restart Z 3 X B O X C O M ...
Page 59: ... 58 132 LG Electronics Inc VX9700 Waveform Waveform F106 pin2 DP2 pin2 Z 3 X B O X C O M ...
Page 154: ...CON104 Z 3 X B O X C O M ...
Page 156: ...Z 3 X B O X C O M ...
Page 159: ...CON809 SW101 SW102 Z 3 X B O X C O M ...
Page 160: ...CON808 Z 3 X B O X C O M ...
Page 162: ...CON809 SW104 Z 3 X B O X C O M ...
Page 163: ...CON808 Z 3 X B O X C O M ...
Page 165: ...SW1 CON2 Z 3 X B O X C O M ...
Page 166: ...CON1 Z 3 X B O X C O M ...
Page 167: ... 15 132 LG Electronics Inc VX9700 Appendix 3 Part List VX9700 Part List Z 3 X B O X C O M ...
Page 168: ... 16 132 LG Electronics Inc VX9700 Appendix 4 Components Layout Z 3 X B O X C O M ...
Page 174: ...Z 3 X B O X C O M ...