The sine and square wave generator (ICL8038、SN7473、MC1445L)

Published:2011/6/14 1:34:00 Author:Borg | Keyword: wave generator | From:SeekIC

Generally, when measuring the dynamic range and distortion of the linear amplifier, we need the sine wave; when measuring the transient state, frequency character and phase distortion, we need the square wave. This circuit has three working states, i.e sine wave output, square wave output or the auto-changed sine/square wave output. In the figure, ICL8038 is a multi-wave generator, whose output sine waves and square waves are imposed on the two poles of the video amplifier MC1445l. The square waves, which are outputed by the generator, are imposed on the counting pole of the TTL four point frequency circuit (SN7473).



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