公开(公告)号：WO0191304A3

公开(公告)日：2003-08-28

申请号：PCT/US0116370

申请日：2001-05-21

Applicant: ANALOG DEVICES INC

Inventor： FERGUSON PAUL F JR ,  HAURIE XAVIER S ,  TEMES GABOR C

IPC: H03F3/70 ,  H03M1/68 ,  H03M1/80 ,  H03M1/08

CPC classification number: H03M1/682 ,  H03M1/46 ,  H03M1/806

Abstract: Systems and methods receive a digital signal and generate an analog signal indicative thereof. In one embodiment, a system includes a DAC that receives a multi-bit digital signal, generates at least two analog signals each indicative of the multi-bit digital signal, and filters two or more of the at least two analog signals. In another embodiment, a system includes a DAC that receives digital input signals at an input data rate and outputs analog signals indicative of the digital signals to a signal conditioning stage at an output data rate different than the input data rate.

Abstract translation: 系统和方法接收数字信号并产生指示其的模拟信号。 在一个实施例中，系统包括DAC，其接收多位数字信号，产生每个指示多位数字信号的至少两个模拟信号，以及对至少两个模拟信号中的两个或更多个进行滤波。 在另一个实施例中，系统包括DAC，其以输入数据速率接收数字输入信号，并以与输入数据速率不同的输出数据速率将指示数字信号的模拟信号输出到信号调节级。

公开(公告)号：WO0191303A3

公开(公告)日：2003-03-13

申请号：PCT/US0116259

申请日：2001-05-21

Applicant: ANALOG DEVICES INC

Inventor： HAURIE XAVIER S ,  FERGUSON PAUL F JR

IPC: H03M1/66 ,  H03F3/70 ,  H03M1/80

CPC classification number: H03M1/804

Abstract: Systems, methods, and integrated circuits employ switch capacitor technology for digital to analog conversion. In one embodiment a DAC receives a multi-bit digital signal. The DAC has a switch capacitor network with a plurality of sub DACs. Each of the sub DACs receives an associated bit of the multi-bit digital signal. The capacitance within each of the sub DACs receives an amount of charge in response to the associate bit. At least two of the sub DACs share charge with one another, and the network outputs at least one analog signal indicative of a sum of values of each bit in the multi-bit digital signal.

Abstract translation: 系统，方法和集成电路采用开关电容技术进行数模转换。 在一个实施例中，DAC接收多位数字信号。 DAC具有具有多个子DAC的开关电容器网络。 每个子DAC接收多位数字信号的关联位。 每个子DAC内的电容响应于关联位而接收一定量的电荷。 至少两个子DAC彼此共享电荷，并且网络输出表示多位数字信号中每个位的值的和的至少一个模拟信号。

公开(公告)号：WO0191302A3

公开(公告)日：2004-05-13

申请号：PCT/US0116257

申请日：2001-05-21

Applicant: ANALOG DEVICES INC

Inventor： FERGUSON PAUL F JR ,  HAURIE XAVIER S

IPC: H03M1/74 ,  H03M1/80 ,  H03M1/12

CPC classification number: H03M1/806

Abstract: Systems, methods, apparatus, and handset employing digital to analog conversion, analog to digital conversion and/or switched capacitor techniques.

Abstract translation: 采用数模转换，模数转换和/或开关电容技术的系统，方法，装置和手机。