FIELD: technique for generating electrical oscillations.
SUBSTANCE: technique for generating electrical oscillations; devices for direct digital frequency synthesis. Invention is provided to increase the accuracy of frequency setting. For this, a device is proposed that contains two digital adders, which, together with a clocked reference oscillator register, form an accumulator, as well as a pair of permanent memories for storing digital images of the generated signals, a digital-to-analogue converter, and a low-pass filter. Adding to the device the second of the named adders, a logical block and a multiplexer makes it possible to organize a second battery operation mode with a counting module reduced by one, thereby changing the frequency tuning step.
EFFECT: increase in the accuracy of frequency setting.
3 cl, 3 dwg
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