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1.发明公开Controlled oscillator circuit for controlling an oscillator for use within a phase-locked loop 失效用于控制锁相环中使用的振荡器控制的振荡器电路
公开(公告)号：EP0741453A2
公开(公告)日：1996-11-06
申请号：EP96106750.1
申请日：1996-04-29
申请人： MOTOROLA, INC.
IPC分类号： H03K3/03
摘要： The output frequency (14) of an oscillator circuit (10) can be controlled by replacing at least one of the reactive components (40), such as a capacitor or inductor, with a synthesized element (22). The synthesized element creates a signal that corresponds to the response of the reactive component it is replacing. The synthesized element may be a current source (44), such as a field effect transistor, that is capable of operating at low voltages.
摘要翻译： 诸如电容器或电感器，具有合成元件（22）：振荡电路（10）的输出频率（14）可以通过更换反应性组分（40）中的至少一个进行控制。 合成的元件创建的信号做了对应于所要替换的无功分量的响应。 合成元件可以是电流源（44）：如场效应晶体管，确实能够在低电压下工作的。
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公开(公告)号：EP0730346A3
公开(公告)日：1996-09-18
申请号：EP96102455.1
申请日：1996-02-19
申请人： MOTOROLA, INC.
CPC分类号： H03K3/356113 , H03K5/249
摘要： A comparator (10) provides a high speed comparison between at least two input signals and includes at least two stages (12) and (14). Each stage (12 and 14) includes a pair of transistors (24), a complimentary pair of transistors (28) and an enabling transistor (26). The stages are coupled to provide positive feedback. A controller (15) operably couples to the enabling transistors. When the first input signal (16) is at a higher voltage level than the second input signal (18), the first comparison output (20) goes low. Conversely, when the second input signal (18) is at a higher voltage level than the first input signal (16), the second comparison output goes low. When the first comparison output (20) goes low, the second enabling transistor (34) is disabled by the controller (15). When the second comparison output goes low, the first enabling transistor (26) is disabled by the controller (15).
摘要翻译： 比较器（10）提供至少两个输入信号之间的高速比较并且包括至少两个级（12）和（14）。 每个级（12和14）包括一对晶体管（24），一对互补的晶体管（28）和启动晶体管（26）。 这些阶段相结合以提供积极的反馈。 控制器（15）可操作地耦合到启用晶体管。 当第一输入信号（16）处于比第二输入信号（18）更高的电压电平时，第一比较输出（20）变低。 相反，当第二输入信号（18）处于比第一输入信号（16）更高的电压电平时，第二比较输出变低。 当第一比较输出（20）变低时，第二启动晶体管（34）被控制器（15）禁止。 当第二比较输出变低时，第一启动晶体管（26）被控制器（15）禁止。
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3.发明公开Method and apparatus for a low power comparator 失效Verfahren und Vorrichtungfüreinen Komparator mit geringer Verlustleistung
公开(公告)号：EP0730346A2
公开(公告)日：1996-09-04
申请号：EP96102455.1
申请日：1996-02-19
申请人： MOTOROLA, INC.
CPC分类号： H03K3/356113 , H03K5/249
摘要： A comparator (10) provides a high speed comparison between at least two input signals and includes at least two stages (12) and (14). Each stage (12 and 14) includes a pair of transistors (24), a complimentary pair of transistors (28) and an enabling transistor (26). The stages are coupled to provide positive feedback. A controller (15) operably couples to the enabling transistors. When the first input signal (16) is at a higher voltage level than the second input signal (18), the first comparison output (20) goes low. Conversely, when the second input signal (18) is at a higher voltage level than the first input signal (16), the second comparison output goes low. When the first comparison output (20) goes low, the second enabling transistor (34) is disabled by the controller (15). When the second comparison output goes low, the first enabling transistor (26) is disabled by the controller (15).
摘要翻译： 比较器（10）在至少两个输入信号之间提供高速比较，并且包括至少两个级（12）和（14）。 每个级（12和14）包括一对晶体管（24），一对互补晶体管（28）和使能晶体管（26）。 这些阶段耦合以提供积极的反馈。 控制器（15）可操作地耦合到使能晶体管。 当第一输入信号（16）处于比第二输入信号（18）更高的电压电平时，第一比较输出（20）变低。 相反，当第二输入信号（18）处于比第一输入信号（16）更高的电压电平时，第二比较输出变低。 当第一比较输出（20）变低时，第二使能晶体管（34）被控制器（15）禁用。 当第二比较输出变低时，第一使能晶体管（26）被控制器（15）禁用。
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4.发明公开Digital-to-analog data converter with internal reference and method of operation thereof 失效Digital-Analog-Wandler mit interner Referenzquelle und Betriebsverfahrenhierfür
公开(公告)号：EP0860950A2
公开(公告)日：1998-08-26
申请号：EP98102769.1
申请日：1998-02-18
申请人： MOTOROLA, INC.
IPC分类号： H03M1/06
摘要： A data converter (10) includes an operational amplifier (14), a first reference input element (18), a second reference input element (22), voltage references 40, and a control element (34). The control element (34) generates control signals (36, 38) based on a digital input. The first reference input element (18) provides a sampled first reference signal (16) to a first input node (13), the sampling of the first temperature variant signal being based on the control signals. The second reference input element (22) provides a sampled difference of the second and third reference signals (20 & 21) to the first input node, the sampling of the second and third temperature variant signals being based on the control signals. The operational amplifier (14) integrates the inputs to perform a digital-to-analog conversion that is substantially temperature invariant.
摘要翻译： 数据转换器（10）包括运算放大器（14），第一参考输入元件（18），第二参考输入元件（22），电压基准40和控制元件（34）。 控制元件（34）基于数字输入产生控制信号（36,38）。 第一参考输入元件（18）向第一输入节点（13）提供采样的第一参考信号（16），第一温度变化信号的采样基于控制信号。 第二参考输入元件（22）将第二和第三参考信号（20和21）的采样差提供给第一输入节点，第二和第三温度变化信号的采样基于控制信号。 运算放大器（14）对输入进行积分以执行实质上温度不变的数模转换。
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5.发明公开Controlled oscillator circuit for controlling an oscillator for use within a phase-locked loop 失效用于控制锁相环中使用的振荡器控制的振荡器电路
公开(公告)号：EP0741453A3
公开(公告)日：1998-01-21
申请号：EP96106750.1
申请日：1996-04-29
申请人： MOTOROLA, INC.
IPC分类号： H03K3/03
摘要： The output frequency (14) of an oscillator circuit (10) can be controlled by replacing at least one of the reactive components (40), such as a capacitor or inductor, with a synthesized element (22). The synthesized element creates a signal that corresponds to the response of the reactive component it is replacing. The synthesized element may be a current source (44), such as a field effect transistor, that is capable of operating at low voltages.
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