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IF Gain Block Builds On SiGe

Sept. 18, 2012
Model LTC6431-15 is an intermediate-frequency (IF) gain block from Linear Technology with broad frequency range from 20 to 1700 MHz and beyond.

Model LTC6431-15 is an intermediate-frequency (IF) gain block from Linear Technology with broad frequency range from 20 to 1700 MHz and beyond. The single-ended gain block delivers 15.5-dB power gain and has a 3.33-dB noise figure at 240 MHz. It achieves +20.6-dBm output power at 1-dB compression. It is unconditionally stable, with input and output ports matched to 50 Ω power consumption is only 90 mA from a single +5-VDC supply.

“The LTC6431-15 is Linear Technology’s first RF-style gain block, and unique in achieving GaAs-level performance using a SiGe process,” explains Erik Soule, the company’s Vice President of Signal Conditioning & High Frequency Products. “The result is outstanding AC performance, excellent repeatability, and stability over temperature, supply voltage, frequency, and output power.” The model LTC6431-15 gain block is supplied in a 4 x 4 mm QFN-24 package.

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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