Features: • Complete Receiver Front-End• Analog RF Gain Control• Single 3.6V Power Supply• Digitally Selectable LNA Inputs• Digitally Selectable Buffered LO Output• 1500MHz to 2500MHz OperationApplication• CDMA/TDMA/DCS1900 PCS Systems• PHS 1500/WLAN...
RF9936: Features: • Complete Receiver Front-End• Analog RF Gain Control• Single 3.6V Power Supply• Digitally Selectable LNA Inputs• Digitally Selectable Buffered LO Output̶...
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The RF9936 is a monolithic integrated receiver front-end for PCS applications. The IC RF9936 contains all of the required components to implement the RF functions of the receiver front-end except for the passive filtering and LO generation. RF9936 contains two LNAs (low-noise amplifiers), a double-balanced Gilbert cell mixer, a balanced IF output, an LO isolation buffer amplifier, and an LO output buffer amplifier for providing the buffered LO signal as an output. On-chip digital logic is used to enable the appropriate LNA. The LNAs share a common output that permits insertion of a bandpass filter between the LNA output and the Mixer section. Analog gain adjustment is provided which allows 10dB variation in gain. The IC RF9936 is designed to operate from a single 3.6V power supply.