Analog Devices Inc. (ADI) introduced the ADRF6806 and ADRF6807 quadrature demodulators featuring the industry’s highest dynamic range and integration, which is effective for a wide range of broadband communication applications such as cellular infrastructure and microwave point-to-point radios.
The latest members of ADI’s RF IC portfolio, the ADRF6806 demodulator operates in the 50 to 525 MHz range, and the ADRF6807 demodulator operates in the 700 to 1050 MHz range. Both demodulators integrate an IQ demodulator with a high performance phase-locked loop (PLL), a low noise voltage-controlled oscillator (VCO), and two low drop-out regulators (LDO). The ADRF6806 and ADRF6807 are the industry’s only quadrature demodulators to combine three RF functions into a single device, thereby simplifying design and reducing board space and bill of materials cost. The ADRF6806 and ADRF6807 use a high performance mixer core that results in an exceptional input IP3 and input P1dB, with a very low output noise floor for excellent dynamic range. The SPI port allows 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.
The ADRF6806 and ADRF6807 demodulators are designed on an advanced silicon-germanium BiCMOS process and are available in a compact 6 × 6 mm LFCSP package.
The ADRF6806 and ADRF6807 can be designed into circuits with ADI’s ADL5561 and ADL5562 IF VGAs, ADL5535 and ADL5536 IF amplifiers and more.