Gain Block Boosts 4 GHz

April 8, 2010
Model GSA804 is a linear gain block from GraSen Technology with nearly flat gain of typically 12.5 dB from 1 MHz to 4 GHz. It is based on an InGaP/GaAs heterojunction-bipolar-transistor (HBT) process and Darlington pair configuration internally matched ...

Model GSA804 is a linear gain block from GraSen Technology with nearly flat gain of typically 12.5 dB from 1 MHz to 4 GHz. It is based on an InGaP/GaAs heterojunction-bipolar-transistor (HBT) process and Darlington pair configuration internally matched to 50 ?. It achieves a noise figure of 4.5 dB, output third-order-intercept point of +40 dBm, and output power at 1-dB compression of +20 dBm. It is suitable for test equipment and wireless communications applications. According to Stan Gray, the firm's Chief Technical Officer (CTO) and Chief Operating Officer (COO), "A unique feature of this new gain block's operational performance is the elimination of external equalization or optimization, which can significantly reduce external components required for typical applications." The gain block is available in an SOT-89 package (as model GSA804-89) and in a surface-mount 0805 package (as model GSA804-12).

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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