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DSA Has 7-b Control To 8 GHz

June 10, 2013
A 7-b digital step attenuator provide precision attenuation to 31.75 dB from 9 kHz to 8 GHz.

Model PE43704 is a compact 7-b digital step attenuator (DSA) from Peregrine Semiconductor, supporting monotonic attenuation to as much as 31.75-dB attenuation from 9 kHz to 8 GHz in 0.25-. 0.5-, or 1.0-dB steps. The 7-b DSA is based on the company’s HaRP™ UltraCMOS silicon CMOS semiconductor technology, achieving high linearity with an input third-order intercept point (IIP3) of +61 dBm at 8 GHz. The DSA maintains monotonic attenuation performance of 0.25 dB through 6 GHz and 1 dB through 8 GHz. It has fast settling time of 2 μs. The component, with electrostatic-discharge (ESD) protection of 2 kV per the human body model (HBM), offers support for 1.8 and 3.3 V control logic. The serial-addressable DSA features multiple programming modes—including serial, direct parallel, and latched parallel modes—for ease of design into a wide range of systems. It is available in a 32-lead, 5 x 5 mm QFN surface-mount housing.

Peregrine Semiconductor Corp., 9380 Carroll Park Dr., San Diego, CA 92121; (858) 731-9400, FAX: (858) 731-9499.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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