Forum
Forum
Verilog-AMS
Analysis
Modeling
Design
Theory
Welcome, Guest. Please
Login
or
Register.
Please follow the Forum
guidelines
.
Aug 19
th
, 2024, 8:18pm
Home
Help
Search
Login
Register
PM to admin
The Designer's Guide Community Forum
›
Design
›
Analog Design
› Loop bandwidth
‹
Previous topic
|
Next topic
›
Pages: 1
Loop bandwidth (Read 1956 times)
raja.cedt
Senior Fellow
Offline
Posts: 1516
Germany
Loop bandwidth
Dec 09
th
, 2008, 10:14pm
hi,
i have one question regarding loop bandwidth.i am designing a PLL whose fref=600Mhz.so i selected loop bandwidth 60MHZ for stability reasons.there are op amps in charge pump.so how to select op amp UGB's?
Thank you.
Back to top
IP Logged
SATurn
Community Member
Offline
Posts: 53
Re: Loop bandwidth
Reply #1 -
Dec 10
th
, 2008, 2:02pm
Hello,
If this amplifier in the charge pump affects the loop transfer characteristics, then its bandwidth should be selected high enough to make sure that the phase margin of the PLL does not degrade.
SATurn
Back to top
IP Logged
raja.cedt
Senior Fellow
Offline
Posts: 1516
Germany
Re: Loop bandwidth
Reply #2 -
Dec 11
th
, 2008, 12:30am
hi,
Thanks for your reply.i took 10 times than loop bandwidth.is it ok.
Back to top
IP Logged
Pages: 1
‹
Previous topic
|
Next topic
›
Forum Jump »
» 10 most recent Posts
» 10 most recent Topics
Design
- RF Design
»» Analog Design
- Mixed-Signal Design
- High-Speed I/O Design
- High-Power Design
- Mixed-Technology Design
Analog Verification
- Analog Functional Verification
- Analog Performance Verification
Measurements
- RF Measurements
- Phase Noise and Jitter Measurements
- Other Measurements
Modeling
- Semiconductor Devices
- Passive Devices
- Behavioral Models
- Transmission Lines and Other Distributed Devices
Design Languages
- Verilog-AMS
- VHDL-AMS
Simulators
- Circuit Simulators
- RF Simulators
- AMS Simulators
- Timing Simulators
- System Simulators
- Logic Simulators
Other CAD Tools
- Entry Tools
- Physical Verification, Extraction and Analysis
- Unmet Needs in Analog CAD
General
- Tech Talk
- News
- Comments and Suggestions
- Opportunities
« Home
‹ Board
The Designer's Guide Community Forum
» Powered by
YaBB 2.2.2
!
YaBB
© 2000-2008. All Rights Reserved.
Copyright 2002-2024
Designer’s Guide Consulting, Inc.
Designer’s Guide
® is a registered trademark of
Designer’s Guide Consulting, Inc.
All rights reserved.
Send comments or questions to
editor@designers-guide.org
. Consider
submitting
a paper or model.