LG Electronics U250 service manual Transmitter Wcdma Mode, Specification

2. PERFORMANCE

2) Transmitter - WCDMA Mode

No	Item			Specification
1	Maximum Output Power	Class 3 : +24dBm(+1/-3dB)
2	Frequency Error	±0.1ppm
3	Open Loop Power control in uplink	±9dB@normal, ±12dB@extreme
		Adjust output(TPC command)
		cmd	1dB	2dB	3dB
		+1	+0.5/1.5	+1/3	+1.5/4.5
4	Inner Loop Power control in uplink	0	-0.5/+0.5	-0.5/+0.5	-0.5/+0.5
		-1	-0.5/-1.5	-1/-3	-1.5/-4.5
		Group (10 equel command group)
		+1	+8/+12	+16/+24
5	Minimum Output Power	-50dBm(3.84MHz)
		Qin/Qout : PCCH quality levels
6	Out-of-synchronization handling of output power	Toff@DPCCH/Ior : -22 -> -28dB
		Ton@DPCCH/Ior : -24 -> -18dB
7	Transmit OFF Power	-56dBm(3.84MHz)
8	Transmit ON/OFF Time Mask	±25us
		PRACH,CPCH,uplinlk compressed mode
		±25us
9	Change of TFC	Power varies according to the data rate
		DTX : DPCH off
		(minimize interference between UE)
10	Power setting in uplink compressed	±3dB(after 14slots transmission gap)
11	Occupied Bandwidth(OBW)	5MHz(99%)
		-35-15*(∆f-2.5)dBc@∆f=2.5~3.5MHz,30k
12	Spectrum emission Mask	-35-1*(∆f-3.5)dBc@∆f=3.5~7.5MHz,1M
		-39-10*(∆f-7.5)dBc@∆f=7.5~8.5MHz,1M
		-49dBc@∆f=8.5~12.5MHz,1M

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