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AM Radio Amplifier with Filter
Using the CPH3910
Application Note
Overview
This application note explains about ON Semiconductor’s
CPH3910 which is used as a Low Noise Amplifier (LNA) for
AM Radio.
The CPH3910 is a silicon junction field effect transistor best
suited for high-frequency applications which is assembled in
the 3-pin surface mount package.
For information about the performance, please refer to the
datasheet of this product.
The evaluation board is adjusted to provide +9.5dB gain in
AM band (520 to 1720 kHz) and reduce gain to −80dB in FM
band (76 to 108 MHz).
A standard material FR4 is used for the printed circuit board
(PCB).
http://onsemi.com
© Semiconductor Components Industries, LLC, 2014 1 Publication Order Number:
October 2014- Rev. 0 ANDCPH3910_1/D
