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HFA3683A - 2.4GHz RF/IF Converter and Synthesizer

General Description

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.

Key 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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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HFA3683A TM Data Sheet June 2000 File Number 4634.5 2.4GHz RF/IF Converter and Synthesizer The HFA3683A is a monolithic SiGe half-duplex RF/IF transceiver designed to operate in the 2.4GHz ISM band. The receive chain 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.