公开(公告)号：US09099976B2

公开(公告)日：2015-08-04

申请号：US14047293

申请日：2013-10-07

Applicant: ANALOG DEVICES, INC.

Inventor： Pablo Acosta-Serafini ,  Kimo Tam ,  Stuart McCracken ,  Daniel Mulcahy

IPC: H03G3/20 ,  H03G3/30 ,  H04L25/03

CPC classification number: H03G3/30 ,  H03G3/3052 ,  H03G3/3078 ,  H04L25/03878

Abstract: Apparatus and methods are disclosed, such as those involving a receiver device. One such apparatus includes an equalizer configured to process an input signal transmitted over a channel. The equalizer can include a programmable gain amplifier (PGA) block which includes an input node configured to receive the input signal; an output node; and a programmable gain amplifier (PGA). The PGA amplifies the input signal with an adjustable gain. The PGA block also includes a gain control block having an input electrically coupled to the input node. The gain control block is configured to adjust the gain of the PGA at least partly in response to the input signal from the input node such that the PGA generates an output signal with a substantially constant amplitude envelope to the output node.

Abstract translation: 公开了诸如涉及接收机设备的装置和方法。 一种这样的装置包括被配置为处理通过信道发送的输入信号的均衡器。 均衡器可以包括可编程增益放大器（PGA）块，其包括被配置为接收输入信号的输入节点; 输出节点; 和可编程增益放大器（PGA）。 PGA以可调增益放大输入信号。 PGA块还包括具有电耦合到输入节点的输入的增益控制块。 增益控制块被配置为至少部分地响应于来自输入节点的输入信号来调整PGA的增益，使得PGA向输出节点产生具有基本上恒定的幅度包络的输出信号。

公开(公告)号：US20140037031A1

公开(公告)日：2014-02-06

申请号：US14047293

申请日：2013-10-07

Applicant: ANALOG DEVICES, INC.

Inventor： Pablo Acosta-Serafini ,  Kimo Tam ,  Stuart McCracken ,  Daniel Mulcahy

IPC: H03G3/30

CPC classification number: H03G3/30 ,  H03G3/3052 ,  H03G3/3078 ,  H04L25/03878

Abstract: Apparatus and methods are disclosed, such as those involving a receiver device. One such apparatus includes an equalizer configured to process an input signal transmitted over a channel. The equalizer can include a programmable gain amplifier (PGA) block which includes an input node configured to receive the input signal; an output node; and a programmable gain amplifier (PGA). The PGA amplifies the input signal with an adjustable gain. The PGA block also includes a gain control block having an input electrically coupled to the input node. The gain control block is configured to adjust the gain of the PGA at least partly in response to the input signal from the input node such that the PGA generates an output signal with a substantially constant amplitude envelope to the output node.

Abstract translation: 公开了诸如涉及接收机设备的装置和方法。 一种这样的装置包括被配置为处理通过信道发送的输入信号的均衡器。 均衡器可以包括可编程增益放大器（PGA）块，其包括被配置为接收输入信号的输入节点; 输出节点; 和可编程增益放大器（PGA）。 PGA以可调增益放大输入信号。 PGA块还包括具有电耦合到输入节点的输入的增益控制块。 增益控制块被配置为至少部分地响应于来自输入节点的输入信号来调整PGA的增益，使得PGA向输出节点产生具有基本上恒定的幅度包络的输出信号。