168_MHz_BANDPASS

Published:2009/6/25 22:31:00 Author:May | From:SeekIC

Gain stage provides gain of 6 dB from 162 to 174 MHz. Skirt slope immediately outside passband decreases at 80 db/MHz. Uses dispersive-design surface-acous-tic-wave bandpass filter with 168-MHz center frequency, 7% bandwidth, and extremely steep skirt response. Parallel inductor at collector ter-minal matches capacitance of acoustic-wave device, and tapped inductor matches output terminal of filter to 50 ohms. Used in spread-spectrum communication receiver. Article cov-ers design and construction of filter on quartz substrate.-T.F.Cheek, Jr.,R.M.Hays,Jr.,and C.S.Hartmann, A Wide-Band Low-Shape-Fac-tor Amplifier Module Using an Acoustic Sur-face-Wave Bandpass Filter, IEEE Joumal of Solid-State Circuits, Feb. 1973, p 66-70.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/168_MHz_BANDPASS.html

Print this Page | Comments | Reading(3)