7B53A/7B53AN
OPTION 5
SPECIFICATION
General
Information
The
TV Sync Separator permits TEKTRONIX real-time
oscilloscopes
to display composite video signals. The TV
Sync
Separator
clips video information from the incoming
video
signal; then, it amplifies and
separates the
field or
vertical
trigger pulses from the line or horizontal trigger
pulses.
Line rate or field rate trigger pulses are provided
depending
on
the position of the front panel switch.
This manual insert
describes the
special features of the
7B53A/7B53AN
OPTION 5 plug-in unit which
has been
modified
to enable
triggering on
composite video signals
through
the
use
of a Sync Separator circuit. The EXT ÷ 10
and
LINE positions of the Main Triggering
Amplifier
SOURCE
switch have been replaced by the TV FIELD and
TV
LINE
switch positions, allowing the sweeps to be
triggered
by
the
output of the Sync Separator circuit at a
Field or
Line Rate.
The delayed sweep circuit
has TV
LINE/EXT
or INT/EXT SOURCE triggering capability,
depending
on
whether the connection is
made to P903 or
P904.
Compatability
The TV Sync
Separator can
be used with 7400,
7500,
7600,
7700, and
7900-Series real time TEKTRONIX
oscilloscopes.
External
Graticules
External
graticules for the main frame are available. Use
the following information
when ordering:
Main
Frame
External
Graticule
7403N-7603
CCIR Composite, Part No.
378-0684-04
NTSC Composite, Part No.
378-0684-05
Main Frame
External
Graticule
7500,7700,7900
CCIR Composite,
Part
No.
378-0625-05
NTSC Composite, Part
No.
378-0625-06
ELECTRICAL
CHARACTERISTICS
Connector
Input
or Output
Signal
COMPOSITE
VIDEO
IN (2
Major Divisions)
Needs
2 major
divisions peak-to-
peak sync
negative composite video
signal.
FIELD
RATE
A
group of one to six pulses, whose
minimum amplitude
is 2 V nega
tive, shall
re-occur at a field rate.
The
width of each individual group
of pulses
shall not exceed 3H.
LINE
RATE
The line
trigger pulses available
shall have a clean leading edge and a
minimum
amplitude of 180 mV
negative.
SYSTEM
CHARACTERISTICS
Compatibility
Compatible
with V and H sync
signals of standard
405, 625, 819
Line/50
Hz, and
525
Line/60 Hz
broadcast
systems;
405 to 1201
Line
closed circuit systems.
Trigger
Sensitivity
2
major divisions or
more will
provide
stable
V or H
triggering.
1
Summary of Contents for 7B53A
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