Stanford Research Systems DS335, Руководство пользователя

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Introduction 2-3
DS335 Synthesized Function Generator
amplitude. The post amplifier attenuators allow internal signal levels to
remain as large as possible, minimizing output noise and signal degradation.
Square waves and waveform sync signals are generated by discriminating
the function waveform with a high-speed comparator. The output of the
comparator passes to the SYNC OUTPUT and, in the case of square waves,
to the amplifier input. Generating square waves by discriminating the sine
wave signal produces a square wave output with rise and fall times much
faster than allowed by either of the signal filters.