Example: confidence
Logarithmic Amplifier
Found 3 free book(s)
TDA7052A/AT 1 W BTL mono audio amplifier with DC …
www.nxp.comThe maximum gain of the amplifier is fixed at 35.5 dB. The DC volume control stage has a logarithmic control characteristic. The total gain can be controlled from 35.5 dB to −44 dB. If the DC volume control voltage is below 0.3 V, the device switches to the mute mode. The amplifier is short-circuit proof to ground, VP and across the load.
Photodiode/Phototransistor Application Circuit - PhysLab
physlab.orgFigure 5 shows a logarithmic photocurrent amplifier using an operating amplifier. The circuit uses a logarith-mic diode for the logarithmic conversion of photocur-rent into an output voltage. In dealing with a very wide irradiation intensity range, linear amplification results in a saturation of output because of the limited linear
Simple RF-Power Measurement - QSL.net
www.qsl.netFrom June 2001 QST © ARRL 1/