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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 3.3-V ISDN U-interface line driver with a new I/sub Q/-control circuit
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A 3.3-V ISDN U-interface line driver with a new I/sub Q/-control circuit

机译:具有新I / sub Q /控制电路的3.3V ISDN U接口线路驱动器

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摘要

In this work, we propose a new quiescent current (I/sub Q/) control circuit applicable to line drivers for digital subscriber line (DSL) applications. The line driver consists of preamplifier, error amplifiers, output transistors, and I/sub Q/ control circuits. A new method is proposed for controlling I/sub Q/ values in order to obtain high linearity performance. It also helps to determine the minimum off-current value of the class-AB output stage to reduce crossover distortion. The line driver is implemented for ISDN U-interface applications. It is fabricated in a 0.35-/spl mu/m CMOS technology for a single power supply voltage of 3.3 V, and a total harmonic distortion of less than -64 dB is achieved.
机译:在这项工作中,我们提出了一种适用于数字用户线(DSL)应用的线驱动器的新型静态电流(I / sub Q /)控制电路。线路驱动器由前置放大器,误差放大器,输出晶体管和I / sub Q /控制电路组成。提出了一种控制I / sub Q /值的新方法,以获得高线性度性能。它还有助于确定AB类输出级的最小关断电流值,以减小交叉失真。线路驱动器是为ISDN U接口应用程序实现的。它采用0.35- / spl mu / m CMOS技术制造,单电源电压为3.3 V,总谐波失真小于-64 dB。

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