Patent ID: 6317067
Filing Date: 2001-11-13
Classification: H03M

Abstract:
A digital-to-analog converter arrangement comprising:a digital-to-analog converter of a first type, including a pulse density modulator and a filter coupled to the pulse density modulator, the first digital-to-analog converter being responsive to a first portion of a digital input value to provide a pulse density modulated signal to the filter and the filter being responsive to the pulse density modulated signal to provide a first analog signal;a second digital-to-analog converter of a second type including a static digital-to-analog converter, the second digital-to-analog converter being responsive to a second portion of the digital input value to provide a second analog signal; anda combiner coupled to both the first and the second digital-to-analog converters and responsive to both the first and second analog signals to provide an analog output signal corresponding to both the first and second portions of the digital input value.