Quadrature demodulators enable ‘unprecedented’ levels of dynamic range
1 min read
Analog Devices has introduced two quadrature demodulators that it claims feature the industry's highest dynamic range and integration.
The ADRF6806 and ADRF6807 rf ICs are designed for a range of broadband communication applications such as cellular infrastructure and microwave point to point radios.
The ADRF6806 operates in the 50 to 525HHz range and the ADRF6807 operates in the 700 to 1050MHz range.
Both demodulators integrate an IQ demodulator with a high performance phase locked loop, a low noise voltage controlled oscillator and two low drop out regulators.
According to ADI, the devices are the only quadrature demodulators to combine three rf functions into a single device. They use a high performance mixer core that ADI claims results in 'exceptional' input IP3 and input P1dB, with a low output noise floor. The SPI port is designed to allow the user to control the fractional N PLL functions, the demodulator LO divider functions, multiple optimisation functions, low power mode and also allow for an externally applied LO.
