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WIRELESS COMMUNICATIONS DIVISION
GND/LNA Gain GND/LNA Gain Mixer Vdd
TQ5635
DATA SHEET
LNA Out
1 GND
Active Bias MXR In
3 V PCS LNA/Mixer Receiver IC
RF In
LNA
GND
Mixer GND LO Vdd
Features
? ? Single 3.0 V Operation ? ? Adjustable Gain/IP3/Current ? ? Low Current Operation ? ? Few external components ? ? QFN 3x3 mm, 16 Pin Leadless Plastic Package ? ? High Input IP3 ? ? Low Noise Figure
LNA Bias
active bias
LO Buffer IF Amp
LO In
LNA Vdd
GND
IF Out
GIC
Product Description
The TQ5635 is an LNA-Downconverter optimized for use in the Korea CDMA PCS bands. The integrated LNA has a single high gain mode that provides over 15 dB of gain, and features very low NF and excellent IP3. An external resistor controls LNA bias, making LNA Idd adjustable.