Peregrine Semiconductor released four new DuNE digitally tuneable capacitors (DTCs). The PE64906, PE64907, PE64908 and PE64909 feature a capacitance range of 0,6–7,7 pF and support power handling up to 34 dBm into 50 Ω (30 Vpk RF).
The monolithic DTCs include integrated bias generation, RF filtering and bypassing, control interface and ESD protection of 2 kV HBM, all incorporated into a 2 x 2 mm package. They provide an easy-to-use solution for antenna tuning and impedance matching applications, as well as tuneable filters and phase shifters in the RFID, military radio, test and measurement, machine-to-machine (M2M) and wireless infrastructure markets.
The devices support a frequency range of 100–3000 MHz and provide high tuning accuracy, linear step size and temperature stability. HaRP technology enhancements enable high linearity of IIP3 > +65 dBm at 50 Ω, with harmonic performance of 2fo/3fo = -40/-40 dBm @ 34 dBm RF (900 MHz), and 32 dBm RF (1900 MHz).
The devices feature direct battery voltage operation, with consistent performance enabled by on-chip voltage regulation. Low supply and standby currents of 140 and 24 μA (VDD = 2,75 V) respectively, help to extend battery life in portable devices. The ICs are controlled through a 3-wire, SPI-compatible interface.
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