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1. 发明申请

US20020093380A1 Low noise amplifier 失效
标题翻译：低噪声放大器
公开(公告)号：US20020093380A1
公开(公告)日：2002-07-18
申请号：US09990200
申请日：2001-11-21
申请人： STMICROELECTRONICS S.r.l.
发明人： Giovanni Cali
IPC分类号： H03F003/45
CPC分类号： H03F3/45089 , H03F2200/372 , H03F2203/45511 , H03F2203/45528 , H03F2203/45684 , H03F2203/45696 , H03F2203/45722 , H03G1/0023
摘要： It is shown a low noise amplifier comprising a first circuit block suitable for converting a first amplifier input voltage signal into current, a second circuit block adapted to divide the current coming from said first block, said second block being controlled by a second voltage signal, said first and second blocks conferring a variable voltage gain to the amplifier. The amplifier comprises at least one first and at least one second resistors and a feedback network, said at least one first resistor connected with one first output terminal of said second block and with a supply voltage, and said at least one second resistor being connected between said at least one first and at least one second output terminals of said second block, and said feedback network being coupled with said at least one first terminal and with said first circuit block, and said at least one second terminal being coupled with at least one output terminal of said low noise amplifier. (FIG. 3).
摘要翻译：示出了一种低噪声放大器，包括适于将第一放大器输入电压信号转换为电流的第一电路块，适于分割来自所述第一块的电流的第二电路块，所述第二块由第二电压信号控制，所述第一和第二块赋予放大器可变电压增益。所述放大器包括至少一个第一和至少一个第二电阻器和反馈网络，所述至少一个第一电阻器与所述第二模块的一个第一输出端子连接并具有电源电压，并且所述至少一个第二电阻器连接在所述第二块的至少一个第一和至少一个第二输出端，并且所述反馈网络与所述至少一个第一端子和所述第一电路块耦合，并且所述至少一个第二端子与至少一个所述低噪声放大器的输出端子。（图3）。

2. 发明申请

US20030231063A1 Device for converting a differential signal to a single signal 有权
标题翻译：用于将差分信号转换为单个信号的装置
公开(公告)号：US20030231063A1
公开(公告)日：2003-12-18
申请号：US10463010
申请日：2003-06-17
申请人： STMICROELECTRONICS S.r.l.
发明人： Giovanni Cali , Roberto Pelleriti , Felice Torrisi
IPC分类号： H03F003/45
CPC分类号： H03F3/45085 , H03F3/45089 , H03F2203/45296 , H03F2203/45392 , H03F2203/45394 , H03F2203/45702
摘要： A device converts a differential signal (Vin1, Vin2) to a single signal (Vout). The device includes at least one pair of transistors (Q1, Q2) having equal transconductance gain (gm) and arranged according a differential stage configuration. The transistors (Q1, Q2) have the differential signal (Vin1, Vin2) in input at the drivable terminals, have first non drivable terminals coupled respectively to first terminals of a first (R1) and a second (Rout) passive elements having second terminals connected with a first supply voltage (VDD), second non drivable terminals coupled to a second supply voltage (VEE) lower than the first supply voltage (VDD). The first terminal of the second passive element (Rout) is the output terminal (OUT) of the device. The last includes a transistor (Q3) having a first non drivable terminal connected with the output terminal (OUT) of the device, a second non drivable terminal coupled with the second supply voltage (VEE) and the drivable terminal connected with the first terminal of the first passive element (R1). The further transistor (Q3) has such a transconductance gain (gm3) that the product of the transconductance gain (gm3) by the first passive element (R1) is unitary.
摘要翻译：器件将差分信号（Vin1，Vin2）转换为单个信号（Vout）。该器件包括至少一对晶体管（Q1，Q2），其具有相等的跨导增益（gm），并根据差分级配置进行布置。晶体管（Q1，Q2）在可驱动端子处输入的差分信号（Vin1，Vin2）具有分别耦合到第一（R1）和第二（Rout）无源元件的第一非驱动端子，第一端子具有第二端子与第一电源电压（VDD）连接，第二不可驱动端子耦合到低于第一电源电压（VDD）的第二电源电压（VEE）。第二无源元件（Rout）的第一个端子是器件的输出端（OUT）。最后一个包括具有与该装置的输出端（OUT）连接的第一不可驱动端子的晶体管（Q3），与第二电源电压（VEE）耦合的第二不可驱动端子和与第一端子连接的可驱动端子第一无源元件（R1）。另外的晶体管（Q3）具有跨导增益（gm3），第一无源元件（R1）的跨导增益（gm3）乘积是一体的。

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