LG LG-E425, Service Manual

Page: 14 / 201

2. PERFORMANCE
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2) WCDMA transmitter specification
LGE Internal Use Only
2) WCDMA transmitter specification
Item Specification
Transmit Frequency
Band1 : 1920 MHz ~ 1980 MHz
Band8 : 880 ~ 915 MHz
Maximum Output Power +24 dBm / 3.84 MHz, +1 / -3 dB
Frequency Error within ±0.1 PPM
Open Loop Power Control
Normal Conditions : within ±9 dB,
Extreme Conditions : within ±12 dB
Minimum Transmit Power < -50 dBm /3.84 MHz
Occupied Bandwidth < 5 MHz at 3.84 Mcps (99% of power)
Adjacent Channel Leakage
Power Ratio (ACLR)
> 33 dB @ ±5 MHz,
> 43 dB @ ±10 MHz
Spurious Emissions
|f-fc| > 12.5 MHz
< -36 dBm / 1 kHz RW @ 9 kHz ≤ f < 150 kHz
< - 36 dBm / 10 kHz RW @ 150 KHz ≤ f < 30 MHz
< -36 dBm / 100 kHz RW @ 30 MHz ≤ f < 1 GHz
< -30 dBm / 1 MHz RW @ 1 GHz
≤
f < 12.75 GHz
< -60 dBm / 3.84 MHz RW @ 869 MHz
≤
f
≤
894 MHz
< -60 dBm / 3.84 MHz RW @ 1930 MHz
≤
f
≤
1900 MHz
< -60 dBm / 3.84 MHz RW @ 2110 MHz
≤
f
≤
2155 MHz
< -67 dBm / 100 kHz RW @ 925 MHz
≤
f
≤
935 MHz
< -79 dBm / 100 kHz RW @ 935 MHz < f ≤ 960 GHz
< -71 dBm / 100 kHz RW @ 1805 MHz ≤ f ≤ 1880 MHz
< -41 dBm / 300 kHz RW @ 1884.5 MHz < f < 1919.6 MHz
Transmit Intermodulation
< -31 dBc @ 5 MHz & < -41 dBc @ 10 MHz
when Interference CW Signal Level = -40 dBc
Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm
Peak Code Domain Error < -15 dB at Pout ≥ -20 dBm
WCDMA(FDD1) TX : 1920 – 1980 MHz
WCDMA(FDD8) TX : 880 - 915 MHz