RF3159 Просмотр технического описания (PDF) - RF Micro Devices
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RF3159 Datasheet PDF : 26 Pages
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RF3159
• Multimode Operation
When a GSM TDMA frame contains bursts of different modulation types (EDGE, GSM), a linear EDGE power amplifier must be
ramped down, the mode changed, and the power ramped back up again during the guard period between bursts. This requires
precise timing of control signals with less room for margin when compared to multiple timeslots with the same modulation. The
RF3159 is designed to operate in different modes in adjacent timeslots provided that the control signals are properly applied.
The system must be capable of controlling the RF input drive timing separately from the VMODE and VRAMP control signals. Fail-
ure to provide the proper timing will produce switching transients.
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Rev A0 DS070102
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