LIN_LOG_SWEEP

Published:2009/7/14 0:30:00 Author:May | From:SeekIC

Sweep rate and center frequency are adjustable in versatile sweep generator providing sweep-frequency output and both linear and logarithmic voltages representing output frequency. Optical Electronics 3329 voltage-to-frequency transducer generates sweep voltage at frequency determined by external resistors, capacitor, and input voltage from 10K pot. Sweep waveform is triangular; for sawtooth waveform, change one of 100K timing resistors to 10K. Second 3329 delivers frequency-varying sine wave to 9110B buffer. 10K pot determines center frequency. Stable log f output is obtained with 2457 log module, Frequency and sweep rates can be range-switched from DC to 100 kHz by changing timing capacitor.- Improved Sweep Generator, Optical Electronics, Tucson, AZ, Application Tip 10209.



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