公开(公告)号：US5994961A

公开(公告)日：1999-11-30

申请号：US986481

申请日：1997-12-08

申请人： Gerald Lunn ,  Ka Hung Derek Wong ,  Jeff Ortiz ,  On Au-Yeung

发明人： Gerald Lunn ,  Ka Hung Derek Wong ,  Jeff Ortiz ,  On Au-Yeung

IPC分类号： H03F1/30 ,  H03F3/45 ,  H03G1/00 ,  H03G1/04 ,  H03G7/06

CPC分类号： H03G1/0023 ,  H03F1/302 ,  H03F3/45103 ,  H03G1/04 ,  H03G7/06 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45398 ,  H03F2203/45702

摘要： A gain control signal (VCTRL) is provided to a temperature compensating circuit (12) which produces a differential temperature compensating gain control signal (VDT). A gain compensating circuit (14) receives the differential temperature compensating gain control signal (VDT) and provides a differential gain and temperature compensating gain control signal (VDTG) to an amplifier (16). The differential gain and temperature compensating gain control signal (VDTG) varies the gain of the amplifier (16) to be substantially linear with respect to variation of the gain control signal (VCTRL) and to compensate for variation in temperature.

摘要翻译： 增益控制信号（VCTRL）被提供给产生差分温度补偿增益控制信号（VDT）的温度补偿电路（12）。 增益补偿电路（14）接收差分温度补偿增益控制信号（VDT），并向放大器（16）提供差分增益和温度补偿增益控制信号（VDTG）。 差分增益和温度补偿增益控制信号（VDTG）使放大器（16）的增益相对于增益控制信号（VCTRL）的变化基本上是线性的并且补偿温度变化。