HFA3683A - Intersil Corporation

HFA3683A 2.4GHz RF/IF Converter and Synthesizer

PIN 2 4 6 8 9 10 11 13 17 19 21 22 23 24 NAME LNA_VCC1 RX_IN BIAS1_VCC1 H/L PE2 PE1 TX_VCC1 TXA_OUT TX_VCC1 TXA_IN LE DATA CLK REF_BY Low Noise Amplifier Positive Power Supply. Low Noise Amplifier RF Input, internally DC coupled and requires an external blocking capacitor. A shunt capacitor to ground matches the input for return loss and optimum NF. Bias Posit.

Features

a low noise, gain selectable amplifier (LNA) followed by a down-converter mixer. An up-converter mixer and a high performance preamplifier compose the transmit chain. The remaining circuitry comprises a high frequency Phase Locked Loop (PLL) synthesizer with a three wire programmable interface for local oscillator applications. A reduced filter count is realized by multiplexing the receive and transmit IF paths and by sharing a common differential matching network. Furthermore, both transmit and receive RF amplifiers can be directly connected to mixers. The inherent image rejection of both the tra.