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Demodulator Runs 100 To 1000 MHz

Oct. 28, 2010

The single-chip model ADRF6850 demodulator from Analog Devices includes a 60-dB variable-gain amplifier (VGA) for handling narrowband as well as wideband signals from 100 to 1000 MHz at signal bandwidths to 250 MHz. The device features an input 1-dB compression point of +12 dBm and an input third-order intercept point of +22.5 dBm. It also packs a fractional-N phase-lock loop (PLL) synthesizer with voltage-controlled oscillator (VCO) and two baseband analog-to-digital-converter (ADC) drivers in an LFCSP housing measuring just 8 x 8 mm.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.