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IF and RF Digital Attenuators Feature High Resolution

Thu, 12/31/2009 - 5:11am

IF and RF digital attenuatorsHittite Microwave has introduced two SMT packaged high resolution 6-Bit and 7-bit digital attenuators for automotive, broadband, cellular/3G, WiMAX/4G, military and test & measurement equipment applications from DC to 6 GHz. The HMC792LP4E digitally controlled GaAs MMIC digital attenuator operates from DC to 6 GHz, and can be programmed to provide up to 15.75 dB attenuation with 0.25 dB resolution. The HMC792LP4E delivers insertion loss as low as 2.2 dB, and IP3 up to +55 dBm in any state. It also features a flexible CMOS/ TTL compatible control interface which accepts serial, parallel, or latched parallel control inputs. The HMC759LP3E 7-bit BiCMOS digital attenuator operates from 10 MHz to 300 MHz, and can be programmed to provide up to 31.75 dB attenuation in 0.25 dB steps. It exhibits desirable attenuation accuracy, and provides P1dB and output IP3 of up to +21 dBm and +40 dBm respectively. The HMC759LP3E features a CMOS/TTL compatible serial control interface, user selectable power up states, and a serial output port for cascading other Hittite serially controlled components.

Hittite Microwave Corporation
978-250-3343, www.hittite.com 
 

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