Peregrine Semiconductor has introduced the UltraCMOS PE42721 75-Ohm RF switch for designers of digital TV (DTV) tuner modules, cable TV (CATV) signal switching and distribution systems, multi-tuner digital video recorders (DVRs) and set-top boxes. The switch is ideal for integration where broadband-TV devices must accommodate multiple RF inputs for cable, satellite and terrestrial reception while avoiding interference between these signals. China, Japan, Korea and Latin being the main geographical areas.
The PE42721 switch features isolation so high that only this one tuner chip is needed in each device, which reduces the overall tuner footprint and cost of the system. It also delivers exceptional linearity and electrostatic-discharge (ESD) performance because it pairs the high isolation with low insertion loss, which improves the signal fidelity by reducing the signal-to-noise ratio (SNR).
Samples and volume-production parts are available now and priced at $0.45 each in 10K-quantity orders. Evaluation kit boards are $95.
