Since 2011 Peregrine has been perfecting its product line of digitally tunable capacitors (DTCs), which enable RF circuits to perform optimally at many different frequencies. Peregrine’s UltraCMOS® DTCs support a wide range of applications in a variety of end markets, including antenna and filter tuning, and impedance matching between circuits. With a form factor five times smaller than competing technologies, UltraCMOS DTCs integrate high-Q tunable capacitors with a built-in low-voltage serial interface. Typical capacitance values range from 0.5 pF to 10 pF, with typical tuning ratios ranging from 3:1 to 6:1. The 5-bit, 32-state digitally controlled variable capacitors provide a monolithically integrated impedance tuning solution that enable wide-band tunable networks, minimize mismatch losses, improve system efficiency and reduce radio complexity. In addition to high power handling, Peregrine’s DTCs feature high linearity and a fast switching speed.
Peregrine’s DTCs are used for tunable filters and matching networks to RFID, antenna tuning and other wireless communications where tunability and optimal system performance is critical.