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公开(公告)号：US20080246543A1
公开(公告)日：2008-10-09
申请号：US11732357
申请日：2007-04-03
IPC分类号： H03F3/45
CPC分类号： H03F3/45192 , H03F3/45632 , H03F2203/45082 , H03F2203/45101 , H03F2203/45292 , H03F2203/45681
摘要： A differential amplifier includes a differential input pair (2A) coupled to a folded cascode stage (2B) and a common mode feedback circuit (34) including a tracking circuit (30A) coupled to first (Vout−) and second (Vout+) outputs of the folded cascode stage (2B). The first and second outputs are coupled to first terminals of first (31A) and second (31B) tracking capacitors which have second terminals on which a first common mode output signal (VCM1) is produced and also are coupled to first terminals of third (32A) and fourth (32B) tracking capacitors, respectively, which have second terminals on which a second common mode output signal (VCM2) is produced. The first and third tracking capacitors are discharged by first (27A) and second (27B) switches that directly couple the first and second outputs to first and second inputs of a common mode feedback amplifier (4). A desired common mode output voltage (VCM-IN) is applied to a third input of the common mode feedback amplifier. The switches are opened to cause the first and second common mode output voltages to be generated, causing a common mode feedback control signal (VCMFB) to be generated for biasing the folded cascode stage.
摘要翻译： 差分放大器包括耦合到折叠共源共栅级（2B）的差分输入对（2A）和包括耦合到第一（Vout）的跟踪电路（30A）的共模反馈电路（34） SUP>）和第二（Vout + SUP））输出。 第一和第二输出耦合到具有第二端子的第一（31A）和第二（31B）跟踪电容器的第一端子，第二端子产生第一共模输出信号（V SUB CM1） 也分别耦合到第三（32A）和第四（32B）个跟踪电容器的第一端子，它们具有产生第二共模输出信号（V SUB CM2）的第二端子。 第一和第三跟踪电容器通过将第一和第二输出直接耦合到共模反馈放大器（4）的第一和第二输入的第一（27A）和第二（27B）开关放电。 所需的共模输出电压（V SUB-IN IN）被施加到共模反馈放大器的第三输入端。 打开开关以产生第一和第二共模输出电压，从而产生用于偏置折叠共源共栅级的共模反馈控制信号（V SUB CMBB）。
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公开(公告)号：US20120239841A1
公开(公告)日：2012-09-20
申请号：US13049694
申请日：2011-03-16
IPC分类号： G06F13/14
CPC分类号： G06F13/4282
摘要： A method is provided. A communication is received by an input pin of an IC over a single-wire bus, where the communication includes a command byte. If the command byte is an initialization command byte, a self-addressing operation is performed to identify a bus address for the IC. Alternatively, if the command byte is a data movement command byte, a data movement operation is performed. When data movement operation is performed, the bus interface of the IC is set from the transparent mode to the operational mode if an operation address from the command byte matches the bus address so that a register identified in the command byte can be accessed and data movement with the register can be performed.
摘要翻译： 提供了一种方法。 通过单线总线的IC的输入引脚接收通信，其中通信包括命令字节。 如果命令字节是初始化命令字节，则执行自寻址操作以识别IC的总线地址。 或者，如果命令字节是数据移动命令字节，则执行数据移动操作。 当执行数据移动操作时，如果来自命令字节的操作地址与总线地址匹配，则IC的总线接口从透明模式设置为操作模式，使得可以访问在命令字节中识别的寄存器和数据移动 可以执行寄存器。
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公开(公告)号：US09003096B2
公开(公告)日：2015-04-07
申请号：US13049694
申请日：2011-03-16
CPC分类号： G06F13/4282
摘要： A method is provided. A communication is received by an input pin of an IC over a single-wire bus, where the communication includes a command byte. If the command byte is an initialization command byte, a self-addressing operation is performed to identify a bus address for the IC. Alternatively, if the command byte is a data movement command byte, a data movement operation is performed. When data movement operation is performed, the bus interface of the IC is set from the transparent mode to the operational mode if an operation address from the command byte matches the bus address so that a register identified in the command byte can be accessed and data movement with the register can be performed.
摘要翻译： 提供了一种方法。 通过单线总线的IC的输入引脚接收通信，其中通信包括命令字节。 如果命令字节是初始化命令字节，则执行自寻址操作以识别IC的总线地址。 或者，如果命令字节是数据移动命令字节，则执行数据移动操作。 当执行数据移动操作时，如果来自命令字节的操作地址与总线地址匹配，则IC的总线接口从透明模式设置为操作模式，使得可以访问在命令字节中识别的寄存器和数据移动 可以执行寄存器。
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