User's Manual
Logic Triggering
TDS 620A, 640A & 644A User Manual
3Ć81
Logic Function (AND) Becomes TRUE
Logic Function Becomes FALSE and
Triggers Acquisition
Time Logic Function is TRUE
Time Logic Function Must be TRUE
Figure 3Ć43:ăLogic Trigger Menu Ċ Time Qualified TRUE
% /&+ )#* State #&! *(!(!% * &)!##&)&' +)) %%#
+. &% * ) #&" &( #&! !(+!* $ (&$ * ()* &
* %%#) ' 0 &( *!#) &% &'(*!&%) &$$&% *& &*
'**(% % )** *(!()
)** *(!( #&! -&(") ) &##&-) * &)!##&)&' -!*) +%*!# *
&+(* %%# $*) * )#* )#&' % ,&#* * () &# * * %
") * #&! +%*!&% ''#! *& * !()* * ( %%#) % ! * +%0
*!&% &%!*!&% !) ) )'!! !% * * Trigger When $%+ Goes TRUE &(
Goes FALSE *(!( &+()
Define Inputs
& )* * #&! )** &( & * !%'+* %%#) Ch1 Ch2
()) TRIGGER MENU➞ Type$!%➞ Logic '&'0+'➞
Class$!%➞ State '&'0+'➞ Define Inputs$!%
&&) !* ( ! H &- L &( &%* ( X )! &( * !()*
* ( %%#) &!) &( Ch4 Aux 2 &% * ( (!)!%
% ##!%
State Operations