Fliesler Meyer LLP
Extendable N-channel digital pulse-width/pulse-frequency modulator
A multichannel digital pulse width modulator/digital pulse frequency modulator uses a single ring oscillator that is shared by multiple channels. The ring oscillator has taps that can be used for least significant bit (LSB) precision of the generated PWM signal. The ring oscillator also produces a ring clock that is used to synchronize logic in the channels. Since the logic in the channels are synchronized by the ring clock, the channels can each independently produce different frequency PWM (or PFM) signals and still share the same ring oscillator.
EXAR Corporation
H H
H03K H03K
inventional inventional
Zdravko Eric Jingquan Zhenyu
Lukic Iozsef Chen Zhao