Delay-Line Sharing Based: A New 600-MHz 16-bit Resolution CMOS DPWM Circuit

نویسندگان

  • Yu-Cherng Hung
  • Kuei-Ching Tsai
چکیده

This paper presents a new circuit design for digital pulse-width modulators (DPWM). In this paper, we improve the structure of hybrid DPWM by utilization of the separation of MSB/LSB group. In addition, a delay line element is shared by MSB/LSB group to reduce the power consumption. The new DPWM prototype circuit operates at 600 MHz clock frequency and has 1.1-mW power consumption. An experimental chip is fabricating by using a standard 0.18 micron CMOS process. The layout area is 461 um × 370 um. Post-layout simulation shows the new DPWM with advantages of smaller chip area and low power consumption especially for PWM with high resolution requirement.

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تاریخ انتشار 2010