Out in Front: December 7, 1995

In 1.9-GHz personal-communications systems, such as cellular phones, Sony’s new switches offer spdt operation for use in functions such as transmit/receive switchover. Unlike the two power supplies comparable devices require for switching and biasing, the CXG1008N and CXG1012N operate from a single 3V bias supply.

The high-isolation CXG1008N provides 57- and 43-dB isolation at 1 and 2 GHz, respectively, with 0.8-dB insertion loss at 2 GHz. The device handles 10-mW power. The CXG1012N handles 400-mW power at 3V and 1W at 4V. Its isolation values are 35 dB and 23 dB at 1 and 2 GHz, respectively, and its corresponding insertion losses are 0.4 and 0.5 dB. Both GaAs JFET ICs come in eight-pin plastic SSOPs and cost $5 (10,000). -- by Bill Schweber

Sony Semiconductor Co of America, San Jose, CA. (800) 288-7669.