[SI-LIST] Re: over & under shoots
- From: James_R_Jones@xxxxxxxx
- To: sajith_emsys@xxxxxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Thu, 23 Jan 2003 08:36:44 -0600
I might check out the following:
1. Measure the power supply at the amplifier power pin relative to the
nearest ground pin on the amp. See if there is noise synchronous to the
switching. If so, you may need to add decoupling caps to quiet the supply.
2. Redraw the circuit including parasitics such as input/output
resistance/capacitance included on the datasheet for the amp. You may have
created a second order system at either the input or output of the amp.
Second order systems have a tendency to ring. You could even do a spice
simulation of this circuit and see if you can reproduce the ringing and
maybe how to reduce the ringing.
Hope this helps,
James R. Jones
Dell
-----Original Message-----
From: Sajith E K [mailto:sajith_emsys@xxxxxxxxxxxxxxx]
Sent: Thursday, January 23, 2003 6:56 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] over & under shoots
hi all,
I have a very basic problem on my board
A discrete analog amplifier which is suppose to amplify a 2KHz square wave
gives undershoots at the output.
Could any one please explain the possible reasons for over and undershoots
and measures to aviod it.
Since i am novice in the field i seek ur earnest co operation in solving the
issue.
thanks in advance
SAJITH
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
