Transmitter with delay mismatch compensation

A method for controlling a transmitter device, wherein the transmitter device comprises a digital and an analog part, a digital modulator, first and second digital-to-analog converters and a filter unit coupled between the digital modulator and one of the first and second digital-to-analog converters, the method comprising:

• digitally modulating received bits;
• storing pre-defined compensation filter values configured to compensate for different analog delay mismatches;
• and
• providing to the filter unit selected compensation filter values of the stored compensation filter values, the selected compensation filter values corresponding to a determined delay mismatch of the analog part.

A transmitter device, comprising:

• a digital part and an analog part;
• a digital modulator arranged in the digital part and configured to receive bits and digitally modulate the received bits;
• a first digital-to-analog converter and a second digital-to-analog converter;
• a digital filter unit arranged in the digital part and coupled between the digital modulator and one of the first and second digital-to-analog converters;
• a table unit coupled to the digital filter unit and configured to store predefined compensation filter values for the digital filter unit, the compensation filter values being configured to compensate different analog delay mismatches;
• and
• means for determining a delay mismatch of the analog part and providing the determined delay mismatch to the table unit, wherein the digital filter unit is configured to receive from the table unit selected compensation filter values of the compensation filter values stored in the table unit, the selected compensation filter values corresponding to the determined delay mismatch of the analog part.