A 1 GHz Equiripple Low-Pass Filter With a High-Speed Automatic Tuning Scheme

shaweikang1984 · 发表于 2011-1-30 10:56:07

马上注册，结交更多好友，享用更多功能，让你轻松玩转社区。

您需要登录才可以下载或查看，没有账号？注册

x

本帖最后由 shaweikang1984 于 2011-1-30 10:57 编辑

Abstract
A continuous-time fourth-order equiripple linear
phase filter with an automatic tuning circuit is presented.
A high speed OTA based on the inverter structure is realized. The
combined common-mode feedforward and common-mode feedback
circuit ensures the input and output common-mode stability.
The gain performance could be maintained by combining an
equivalent negative resistor circuit at the output nodes. Transconductance
tuning can be achieved by adjusting the bulk voltage
by using the deep-NWELL technology. The modified automatic
tuning circuit relaxes the speed requirement of the tuning blocks.
Through the use of the operational transconductance amplifier
as a building block with the automatic tuning scheme, the filter
3 dB cutoff frequency is 1 GHz with the group delay less than
4% variation up to 1.5 fc frequency. The 43 dB of IM3 at
filter cutoff frequency is obtained with 4 dbm two-tone signals.
Implemented in 0.18- m CMOS process, the chip occupies 1 mm􀀀
and consumes 175 mW at a 1.5-V supply voltage.

05325666.pdf (931.43 KB, 下载次数: 47 )

zh123456789 · 发表于 2011-1-30 12:23:50

Low Power Chien Search for BCH Decoder Using RT-Level Power Management

chujn · 发表于 2011-1-30 17:21:00

下来看看，谢谢。

earnmoney0130a · 发表于 2011-1-30 18:59:04

回帖才能看，不方便啊

vikingg · 发表于 2011-2-1 09:52:47

谢谢分享

dsp24x · 发表于 2011-2-2 22:18:42

謝謝分享~

babikambing · 发表于 2011-2-6 20:24:49

回复 1# shaweikang1984

thanks

octopucs · 发表于 2011-3-5 11:06:55

下来看下哈正需要

jefffree · 发表于 2011-4-20 17:20:35

还要回复啊，多谢

zhuxinliang1987 · 发表于 2011-5-6 13:00:34

看看有用

[资料] A 1 GHz Equiripple Low-Pass Filter With a High-Speed Automatic Tuning Scheme

马上注册，结交更多好友，享用更多功能，让你轻松玩转社区。

相关帖子

站长推荐 /3