In order to perform this harmonic reduction, a pure sine wave must first be applied to the Class-D amplifier system. Using the ternary modulated bitstreams described earlier, two pulse density ...
Fig 1. This shows the spectra of both waveforms when the Class D output is issuing silence (no audio, duty cycle = 50%) with a switching frequency of 333 kHz. Fig 2. The blue line shows the energy ...
The recent availability of high speed/high frequency mixed-signal semiconductor processes has enabled the introduction of fully wireless LAN (WLAN) integrated transmitters, and in particular, ...