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Demod/Mod Unit Runs 400 to 3600 MHz

Aug. 13, 2015
This miniature demodulator/modulator covers 400 to 3600 MHz and features low-power operation with low distortion.

Model PV5870, a compact quadrature demodulator/modulator developed by ParkerVision, is now available with support from supplier RFMW Ltd. The direction-conversion quadrature demodulator/modulator is designed for use in communications systems requiring excellent linearity while also operating with extremely low power consumption, across an input range of 400 to 3600 MHz.

The miniature demodulator/modulator comes in a 20-lead QFN package measuring only 4 {MULT} 4 mm and draws just 23-mA current from a +3-V dc supply. It’s designed to maintain excellent linearity while consuming only one-tenth or less of the power of demodulations with similar functionality. Even with the low power consumption, however, the model PV5870 offers low noise figure with an approximate 6-dB improvement over competing devices covering a similar frequency range.

The demodulator controls amplitude and phase control across a frequency range of 400 to 3600 MHz as a demodulator, allowing for adjustment of second- and third-order demodulation products through controls and adjustments. The unit contains fully differential RF, local oscillator (LO), and baseband interfaces, with baseband output ports that are designed for direct connection to baseband filters or amplifiers.

The unit achieves sideband suppression of better than –40 dBc and carrier leakage of better than –40 dBm for 900-MHz applications. It can operate from a +1.8-V dc power supply while providing an output third-order-intercept point of +21 dBm and an output second-order-intercept point of +60 dBm. It also boasts +7.5-dBm output power at 1-dB compression at 900 MHz.

RFMW Ltd. (ParkerVision stocking distributor), 188 Martinvale Lane, San Jose, CA 95119; (408) 414-1450, E-mail: [email protected].

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