Analog Devices Inc. ADMV4540 K-Band Quadrature Demodulator is a highly integrated quadrature demodulator with an integrated synthesizer ideally suited for next-generation K-band satellite communication. The RF front end of the ADMV4540 consists of two Low Noise Amplifier (LNA) paths, each with an optimal cascaded, 5dB, double-sideband noise figure at maximum gain while minimizing external components. The dual paths allow support for antenna polarization. Selection of the LNA path can be made through the Serial Peripheral Interface (SPI).
