Patent ID: 8860592

Claim:
A signal generating circuit, comprising: an analog signal generator comprising an output and a control input, the analog signal generator configured to generate at the output an analog output signal in accordance with a timing parameter; an analog-to-digital converter (ADC) comprising an input and an output, the input coupled to the output of the analog signal generator, the ADC configured to generate a sequence of signal values dependent on the analog signal received at the input; a configurable digital signal generator comprising an output and a control input, the digital signal generator configured to generate a digital output signal in accordance with signal parameters received at the control input; a control circuit comprising an input coupled to the output of the ADC, a first control output coupled to the control input of the analog signal generator, and a second control output coupled to the control input of the digital signal generator, the control circuit configured in a calibration routine to have the analog signal generator generate an analog output signal, to determine the timing parameter of the analog output signal based on an output signal of the ADC received at the input of the control circuit, and to set signal parameters of the digital signal generator dependent on the determined timing parameter of the analog signal generator.