A 0.18µm CMOS 300MHz Current-Mode LF Seventh-order Linear Phase Filter for Hard Disk Read Channels
نویسندگان
چکیده
−A 300MHz CMOS seventh−order linear phase gm−C filter based on a current−mode multiple loop feedback (MLF) leap−frog (LF) structure is realized. The filter is implemented using a fully−differential linear operational transconductance amplifier (OTA) based on a source degeneration topology. PSpice simulations using a standard TSMC 0.18μm CMOS process with 2.5V power supply have shown that the cut−off frequency of the filter can be tuned from 260MHz to 320MHz and dynamic range is about 66dB. Group delay ripple is approximately 4.5% over the whole tuning range and maximum power consumption is 210mW.
منابع مشابه
High-fequency Cmos Integrated Filters for Computer Hard Disk Drive and Wireless Communication Systems
Operational transconductance amplifier and capacitor (OTA-C) filters have outstood among different types of filter due to high frequency and low power capabilities in the main stream digital CMOS technology. They have been widely used in computer hard disk drive (HDD) and wireless communication transceivers. OTA-C filters based on cascade and passive ladder simulation are well-known. However, m...
متن کاملA CMOS 650 MHz Seventh-order Current-Mode 0.05° Equiripple Linear Phase Filter
Read/write channels for hard disk drives (HDD) require high-frequency continuous time filters (CTF) [1-5]. A 650 MHz current-mode seventh-order 0.05° equiripple linear phase low-pass filter for computer hard disk read/write channels with data rates up to 1Gbit/s is presented in this paper. It is implemented in CMOS using a leap-frog multiple loop feedback structure. The operational transconduct...
متن کاملA 2 V 0.25µm CMOS 250 MHz fully-differential seventh-order equiripple linear phase LF filter
A fully-differential seventh-order 0.05° equiripple linear phase low-pass filter based on multiple loop feedback (MLF) leapfrog (LF) topology is presented for read/write channels. The filter is designed and simulated with the proposed fully balanced, highly linear operational transconductance amplifier (OTA). This OTA contains two complementary differential cross-coupled input pairs and a pair ...
متن کاملA CMOS lOOMHz CONTINUOUS-TIME SEVENTH ORDER 0.05' EQUIRIPPLE LINEAR PHASE LEAPFROG MULTIPLE LOOP FEEDBACK G,-C FILTER
A novel lOOMHz CMOS G,-C seventh-order 0.05" equiripple linear phase low-pass multiple loop feedback (MLF) filter based on the Leapfrog (LF) topology is presented. The filter is implemented using a fully-differential linear, high performance operational transconductance amplifier (OTA) based on crosscoupled pairs. PSpice simulations in a standard TSMC 0.25pm CMOS process and with a single 5V po...
متن کاملAn all-analog CMOS implementation of a turbo decoder for hard-disk drive read channels
In this work we present a full analog turbo decoder for hard-disk EPR-IV read channels in CMOS technology. The design is based on a current-mode approach developed by Loeliger et al. [1], for the analog implementation of sum-product algorithms. The circuits main attractions are the coding gain offered by turbo codes over the uncoded EPR-IV channel, and the relative simplicity and power efficien...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007