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5.2.5 Power supply and power switching
The battery voltage is regulated in switchable regulators I302, I303 and I401.
The used supply voltage for RF-components is 2.8 V, except dual-band TX-
module.The power on/off switching is controlled from baseband-processor
using output-enable pin of each regulator.
5.2.6 Antenna and antenna connector
The RF-signal from antenna front-end switch X403 is applied to the antenna
connector V2. The antenna connector is SMA-type and the nominal impedance
is 50 ohm. Antenna itself is a helical type dualband antenna.
4c2300gb.fm
Product:TGP71EU & TGP73EU /
08.02.2002
OC2300
11
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