Analog Devices Releases High Performance Integrated RF Demodulator For Next-Generation Communication Systems

The ADRF6801 RF demodulator integrates ADI’s leading fractional-N PLL (phase-locked loop) synthesiser and low-phase-noise VCO (voltage controlled oscillator) with a high dynamic range demodulator. The ADRF6801 also includes other value-added features, such as an RF balun, three LDOs (low-dropout regulators), and the necessary baseband buffer amplifiers. This unique combination provides radio designers with a highly integrated solution without any compromise in performance. Furthermore, the ADRF6801 demodulator enables radio developers to shrink circuit board area, reduce the bill of materials, reduce risk and shorten product development time, thereby lowering total system cost. The ADRF6801 expands upon the capabilities of ADI’s recently announced RF ICs, including the ADRF660x mixers and ADRF670x modulators.

Operating over a frequency range from 750 MHz to 1150 MHz, the ADRF6801 demodulator features a noise figure of 14.3 dB, input IP3 (third order intercept) of 25 dBm , and a P1dB (input compression point) of 12.5 dBm. The ADRF6801 supports the SPI/I2C serial interface for PLL programming and the device provides the option of selecting between an external LO (local oscillator) source or an internally generated LO signal.