公开(公告)号：AU2003280465A1

公开(公告)日：2004-01-19

申请号：AU2003280465

申请日：2003-06-26

Applicant: QUALCOMM INC

Inventor： KEEHR EDWARD ,  WANG SEAN ,  BAZARJANI SEYFOLLAH

IPC: H03H19/00 ,  H03M3/00

Abstract: A digital to analog converter augmented with Direct Charge Transfer (DCT) techniques. A digital to analog converter augmented with DCT and CDS techniques. A digital to analog converter augmented with Postfilter Droop Compensation.

公开(公告)号：BR0312079A

公开(公告)日：2007-05-29

申请号：BR0312079

申请日：2003-06-26

Applicant: QUALCOMM INC

Inventor： KEEHR EDWARD ,  WANG SEAN ,  BAZARJANI SEYFOLLAH

IPC: H03H19/00 ,  H03M3/00

Abstract: A digital to analog converter augmented with Direct Charge Transfer (DCT) techniques. A digital to analog converter augmented with DCT and CDS techniques. A digital to analog converter augmented with Postfilter Droop Compensation.

公开(公告)号：WO2004004120A3

公开(公告)日：2004-09-23

申请号：PCT/US0320403

申请日：2003-06-26

Applicant: QUALCOMM INC

Inventor： KEEHR EDWARD ,  WANG SEAN ,  BAZARJANI SEYFOLLAH

IPC: H03H19/00 ,  H03M3/00

CPC classification number: H03H19/004 ,  H03M3/344 ,  H03M3/502

Abstract: Switched-capacitor filter for filtering the output signal of a digital-to-analog converter augmented with Direct Charge Transfer (DCT) techniques. A digital-to-analog converter augmented with DCT and correlated double sampling (CDS) techniques. A digital to analog converter augmented with Postfilter Droop Compensation. In one embodiment, an electronic system includes a digital-to-analog converter (DAC) having a DAC output (Vin); and an analog postfilter having a postfilter input coupled to the DAC output; said analog postfilter (300) including a first direct charge transfer coupled filter said postfilter employing the CDS technique.

Abstract translation: 用于对直流电荷转换（DCT）技术进行增益的数/模转换器的输出信号进行滤波的开关电容滤波器。 数字 - 模拟转换器增强了DCT和相关双采样（CDS）技术。 数字到模拟转换器通过后置滤波器下垂补偿增强。 在一个实施例中，电子系统包括具有DAC输出（Vin）的数模转换器（DAC）; 以及具有耦合到DAC输出的后滤波器输入的模拟后滤波器; 所述模拟后置滤波器（300）包括采用所述CDS技术的所述后置滤波器的第一直接电荷转移耦合滤波器。