Output amplitude control circuit for digital to analog converter circuit for arbitrary signal generators and tone signal sources

摘要

The control circuit has several digital to analog (D/A) converters (2), with a digital input signal received by an input signal converter circuit (3), which transmits first and second digital signals with a predetermined relation to the digital input signal, and with different values. Several switches (4) selectively connect to the D/A converters and apply the first or the second digital signal from the converter circuit to the D/A converters. The converter outputs are processed by an adder (5). A control circuit (6) is coupled to the switches to regulate their operation for change of the relation of the two signals.