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Provided to transmit power amplifier is a circuit diagram of frequency 40 ~ 500KHZ
Date:2021/10/18 21:55:56 Hits:
This power amplifier is mainly provided to provide sufficient signaling power to the 40-500kHz frequency to meet the transmit power of the communication machine, the transmission level.
The technical indicators are as follows: 1. Working frequency: 40 ~ 500kHz, frequency characteristic deviation does not exceed the positive loss of 0.5 dB; 2, gain and adjustment range: pi = 0dB, s = 37 positive and negative 3DB; 3, the maximum loss of power is less than or equal to 43DBM (20W); 4, input, output impedance: 75 o'clock, unbalanced, reflection coefficient P less than or equal to 15%; 5, hour intervail Dressing: (dual sound test) is less than or equal to 60 dB.
Circuit principle:
Circuit debug:
Be
(Transfer from electronic enthusiast sites)
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