Directional Detector Eyes High-Volume Handset Apps

Designed for mobile phones operating over frequencies from 650 MHz to 2.4 GHz, the DD01-92 direct channel detector has been developed as a low-cost integrated device for high-volume applications. Offered in a six-lead SC-70 package, the device incorporates a directional coupler and two GaAs Schottky diodes on a monolithic GaAs chip. It generates a dc voltage of approximately 200 mV with a 1.8-GHz input signal of 10 mW and can handle power levels up to 4W. The directional detector device is available on tape-and-reel and is priced at $0.38 each/50,000.