提出了一种连续时间线性均衡气和可变增益放大器共享电阻、电容的电路结构.该收发器采用0.13 m 1.2 V CMOS工艺实现
线缆传输距离大于100 m.
Abstract
This paper describes a 100BaseTX Ethernet physical layer interface with ADC in 1.2 V 0.13 m CMOS technology. A continuous-time linear equalizer (CTLE) and a decision-feedback equalizer (DFE) are used in receiver. The circuit uses digital techniques to perform adaptive line equalization and baseline wander compensation through analog-to-digital convertor. The proposed CTLE and variable-gain amplifier (VGA) mixed structure shareing resistor and capacitance
can decrease low power and small area. The transceiver allows for robust performance for cable lengths>100 m.