公开(公告)号：US20150326185A1

公开(公告)日：2015-11-12

申请号：US14807429

申请日：2015-07-23

Applicant: Broadcom Corporation

Inventor： Mohyee MIKHEMAR ,  Amir HADJl-ABDOLHAMID ,  Hooman DARABI

IPC: H03F1/02 ,  H03G1/00 ,  H03F3/19 ,  H03F3/45 ,  H04B1/12 ,  H04B1/16

CPC classification number: H03H11/1217 ,  H03F1/0205 ,  H03F1/086 ,  H03F3/19 ,  H03F3/45076 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/91 ,  H03F2203/45332 ,  H03F2203/45336 ,  H03G1/0005 ,  H03G1/0029 ,  H03G3/3068 ,  H03G3/32 ,  H03H11/1252 ,  H03H11/1256 ,  H03H11/1291 ,  H03H2210/025 ,  H04B1/123 ,  H04B1/16 ,  H04L25/06

Abstract: According to one embodiment, a compact low-power receiver comprises first and second analog circuits connected by a digitally controlled interface circuit. The first analog circuit has a first direct-current (DC) offset and a first common mode voltage at an output, and the second analog circuit has a second DC offset and a second common mode voltage at an input. The digitally controlled interface circuit connects the output to the input, and is configured to match the first and second DC offsets and to match the first and second common mode voltages. In one embodiment, the first analog circuit is a variable gain control transimpedance amplifier (TIA) implemented using a current mode buffer, the second analog circuit is a second-order adjustable low-pass filter, whereby a three-pole adjustable low-pass filter in the compact low-power receiver is effectively produced.

Abstract translation: 根据一个实施例，紧凑型低功率接收机包括由数字控制接口电路连接的第一和第二模拟电路。 第一模拟电路在输出处具有第一直流（DC）偏移和第一共模电压，并且第二模拟电路在输入端具有第二直流偏移和第二共模电压。 数字控制接口电路将输出连接到输入，并且被配置为匹配第一和第二DC偏移并且匹配第一和第二共模电压。 在一个实施例中，第一模拟电路是使用电流模式缓冲器实现的可变增益控制跨阻抗放大器（TIA），第二模拟电路是二阶可调低通滤波器，由此三极可调低通滤波器 在紧凑型低功率接收机中有效生产。

公开(公告)号：US20170149412A1

公开(公告)日：2017-05-25

申请号：US15427398

申请日：2017-02-08

Applicant: Broadcom Corporation

Inventor： Mohyee MIKHEMAR ,  Amir HADJl-ABDOLHAMID ,  Hooman DARABI

IPC: H03H11/12

CPC classification number: H03H11/1217 ,  H03F1/0205 ,  H03F1/086 ,  H03F3/19 ,  H03F3/45076 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/91 ,  H03F2203/45332 ,  H03F2203/45336 ,  H03G1/0005 ,  H03G1/0029 ,  H03G3/3068 ,  H03G3/32 ,  H03H11/1252 ,  H03H11/1256 ,  H03H11/1291 ,  H03H2210/025 ,  H04B1/123 ,  H04B1/16 ,  H04L25/06

Abstract: According to one embodiment, a compact low-power receiver comprises first and second analog circuits connected by a digitally controlled interface circuit. The first analog circuit has a first direct-current (DC) offset and a first common mode voltage at an output, and the second analog circuit has a second DC offset and a second common mode voltage at an input. The digitally controlled interface circuit connects the output to the input, and is configured to match the first and second DC offsets and to match the first and second common mode voltages. In one embodiment, the first analog circuit is a variable gain control transimpedance amplifier (TIA) implemented using a current mode buffer, the second analog circuit is a second-order adjustable low-pass filter, whereby a three-pole adjustable low-pass filter in the compact low-power receiver is effectively produced.