ESUBX_SUB_transfer_function_V_F_converter

Published:2009/7/23 23:43:00 Author:Jessie | From:SeekIC

Fig. 12-15 This circuit responds exponentially to the input voltage and is ideally suited for electronic music synthesizers. The circuit has a 1-V-in/octave-offrequency-out scale factor, with exponential conformity with 0.13% over a 10-Hz to 20-kHz range, and 150 ppm/℃ drift. Both a pulse output and a ramp output are available (the ramp is used where substantial power at the fundamental frequency is required). To trim, ground the Q3 base and adjust the 2-kΩ potentiometer so that the A3 inverting input is 100 mV above the noninverting input. Remove the ground at Q3. Linear Technotogy Linear Applications Handbook 1990, p AN14-15.



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