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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
ZZVX[W
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
3.4 Crystal(26 MHz, X102)
Figure. 3.4.1 Crystal Oscillator External Connection
The X-GOLDTM110 RF-Subsystem contains a fully
integrated 26 MHz digitally controlled crystal
oscillator,
designed for 8 pF crystals. The only external part
of the oscillator is the crystal itself. Overall pulling
range of the
DCXO is approximately
·
55 ppm, controllable
by a 13-bit tuning word DCXO_AFC[16:4].
The 26 MHz reference clock can also be applied
to external components like Bluetooth or GPS, via
the buffered output signal FSYS1.
3. TECHNICAL BRIEF
3.5 RF Subsystem of PMB8810 (U101)
Figure. 3-5-1 Block DIAGRAM of RF Subsystem
ZZVX[W
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
3.4 Crystal(26 MHz, X102)
Figure. 3.4.1 Crystal Oscillator External Connection
The X-GOLDTM110 RF-Subsystem contains a fully
integrated 26 MHz digitally controlled crystal
oscillator,
designed for 8 pF crystals. The only external part
of the oscillator is the crystal itself. Overall pulling
range of the
DCXO is approximately
·
55 ppm, controllable
by a 13-bit tuning word DCXO_AFC[16:4].
The 26 MHz reference clock can also be applied
to external components like Bluetooth or GPS, via
the buffered output signal FSYS1.
3. TECHNICAL BRIEF
3.5 RF Subsystem of PMB8810 (U101)
Figure. 3-5-1 Block DIAGRAM of RF Subsystem