本論文提出一個可供選擇之全積體化離散時間二階一位元三角積分調變器控制之低切換雜訊直-直流轉換器，作為功率放大器之電源供應模組，包含此轉換器完整之暫態小訊號模型與電路設計。轉換器以TSMC 0.35um 3.3V CMOS製程設計與製造。其回授控制器DT-SDM2可操作於1M Hz取樣頻率。使用離散時間二階一位元三角積分調變器之控制方式，相較於傳統脈波寬度調變控制方式，具有優異的雜訊抑制能力。由於應用端之功率放大器主要重視其電源供應模組轉換效率、頻寬以及開關切換頻率引起的雜訊問題，故本論文實現之DT-SDM2控制直-直流轉換器，藉由控制方式之雜訊抑制能力及直-直轉換器的高轉換效率，以符合應用端之功率放大器對其電源供應模組的需求。

This paper presents an integrated low switching noise DC-DC converter using a discrete time second order one-bit delta-sigma modulator (DT-SDM2) to control as supply modulator for power amplifier. The context includes the description of small signal analysis and circuit design flow. This converter fabricated on standard TSMC 0.35um 3.3V CMOS process. The operating frequency is 1MHz. Using DT-SDM2 to control, compared to traditional pulse width modulator (PWM) has grate noise suppressing ability. Due to the application for power amplifier, the efficiency, bandwidth, and the problem of sitching noise for supply modulator is the most important issue to condider. The presented DT-SDM2 converter relys on the noise spread ability of controller and the high efficiency of DC-DC converter to conform to the application for the need of power amplifier.

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