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RF9938

Part Number	RF9938
Manufacturer	RF Micro Devices
Description	PCS UPCONVERTER/BPSK MODULATOR
Published	Apr 16, 2005
Detailed Description	RF9938 6 Typical Applications • CDMA/TDMA/DCS1900 PCS Systems • PHS 1500/ WLAN 2400 Systems • General Purpose Upconverte...
Datasheet	RF9938 PDF File

Overview

RF9938 6 Typical Applications • CDMA/TDMA/DCS1900 PCS Systems • PHS 1500/ WLAN 2400 Systems • General Purpose Upconverter • BPSK Modulation • Micro-Cell PCS Base Stations • Portable Battery-Powered Equipment PCS UPCONVERTER/BPSK MODULATOR Product Description The RF9938 is a complete upconverter designed for PCS applications.
The IC contains a double-balanced mixer stage and an output buffer amplifier stage.
This device may also be used to directly BPSK modulate a carrier.
The mixer is a Gilbert cell with emitter degeneration resistors to provide high IP3.
The output stage is a class-B, push-pull configuration to reduce the overall current and still provide a good 50 Ω output match.
The unit...

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