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Only for training and service purposes
LGE Internal Use Only
RFT6150 Cellular and PCS CDMA RF Specifications
Parameter
Condition
Min.
Type.
Max.
Units
Rated Output Power
Average CDMA Cellular
Average CDMA PCS
7
9
dBm
dBm
Min Output Power
Average CDMA Cellular
Average CDMA PCS
-75
-75
dBm
dBm
RX band noise power
CDMA Cellular
CDMA PCS
-136
-133
dBm/Hz
ACPR
Cellular: Fc
±
885kHz
PCS : Fc
±
1.25MHz
-56
-57
dBc/30kHz
3.1.3.2 Power Amplifier(U103,U104)
The power amplifier that can be used in the PCS and CDMA mode has linear amplification capability and high
efficiency. For higher efficiency, it is made up of one MMIC (Monolithic Microwave Integrated Circuit) for which
RF input terminal and internal interface circuit are integrated onto one IC after going through the AlGaAs/GaAs HBT
(heterojunction bipolar transistor) process. The module of power amplifier is made up of an output end interface
circuit including this MMIC. The maximum power that can be inputted through the input terminal is +10dBm and
conversion gain is about 26.5dB. RF transmit signals that have been amplified through the power amplifier are sent to
the duplexer.
.
3.1.4 Description of Frequency Synthesizer Circuit
3.1.4.1 Voltage Control Temperature Compensation Crystal Oscillator (VCTCXO, X100)
The temperature variation of mobile phone can be compensated by VCTCXO. The reference frequency of a mobile
phone is 19.2 MHz. The receiver frequency tuning signals called TRK_LO_ADJ from MSM as 0.5 V~2.5 V DC via
R and C filter in order to generate the reference frequency of 19.2 MHz and input it into the frequency synthesizer.
Frequency stability depending on temperature is
±
2.0 ppm.
Z3X-BOX.COM
Содержание VX8350
Страница 132: ...1 Assembly and Disassembly Diagram Z 3 X B O X C O M 131 ...
Страница 133: ...Z 3 X B O X C O M Internal Use Only 132 ...
Страница 134: ...Z 3 X B O X C O M Internal Use Only 133 ...
Страница 135: ...2 Block and Circuit Diagram Z 3 X B O X C O M 134 ...
Страница 149: ...3 Part List Z 3 X B O X C O M 148 ...
Страница 160: ...4 Components Layout Z 3 X B O X C O M 159 ...
Страница 164: ...F100 F101 F102 cam3 cam4 CON100 CON102 Z 3 X B O X C O M Internal Use Only 163 ...
Страница 165: ...CON2 Z 3 X B O X C O M Internal Use Only 164 ...
Страница 167: ...CON103 Z 3 X B O X C O M Internal Use Only 166 ...
Страница 168: ...VX8350 CAM_REV1 0 SPKY 0047501 SW100 CON102 Z 3 X B O X C O M Internal Use Only 167 ...
Страница 169: ...CON103 Z 3 X B O X C O M Internal Use Only 168 ...
Страница 170: ...VX8350 F_VOL REV1 0 SPKY 0047701 SW100 SW101 SW102 SW100 SW101 SW102 CON102 Z 3 X B O X C O M Internal Use Only 169 ...
Страница 171: ...5 BGA Pin Map Z 3 X B O X C O M 170 ...