ADMV4540 Description
The ADMV4540 is a highly integrated quadrature demodulator with integrated synthesizer ideally suited for next generation K band satellite munication. The RF front end of the ADMV4540 consists of two low noise amplifier (LNA) paths, each with an optimal cascaded, 5 dB, double sideband noise figure at maximum gain, while minimizing external ponents. The dual paths allow support for antenna polarization.
ADMV4540 Key Features
- Fractional-N synthesizer with low phase noise VCO
- K band quadrature demodulator
- Programmable via 4-wire SPI
- RF operating frequency range: 17 GHz to 22 GHz
- LO internal frequency range: 17 GHz to 21.5 GHz
- Double sideband noise figure: 5 dB at maximum conversion gain
- Output integrated phase noise, 1 kHz to 10 MHz: <1°
- Maximum conversion gain of >50 dB
- Conversion gain control range of >50 dB
- IM3 of -54 dBc at -30 dBm posite input level, ΔfRF = 1 MHz