The frequency shift key control modem circuit of XR-2207

Published:2011/6/19 7:49:00 Author:Seven | Keyword: frequency shift, key control modem | From:SeekIC

XR-2207 is a voltage control oscillating (VCO) function generator circuit, the modem circuit shown in the figure can generate rectangle wave and triangular wave (but it can't generate the sine wave).



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