S-53: Difference between revisions

Jump to navigation Jump to search

S-53 (view source)

Revision as of 05:25, 28 November 2021

1,964 bytes added ,  28 November 2021
no edit summary
No edit summary
No edit summary
(18 intermediate revisions by 2 users not shown)
Line 1: Line 1:
The Tektronix S-53 Trigger Recognizer is essentially the entire trigger circuit of an oscilloscope. It
{{Plugin Sidebar
is rated to 1GHz and has a BNC input with 50-ohm impedance. It uses tunnel diode triggering with an
|manufacturer=Tektronix  
amplifier before the tunnel diode. The input signal to trigger out jitter is rated at 15ps or less.
|series=7000 and 3S series sampling heads
The trigger-out signal is 1V into 50 ohms, with 600mV/ns slew rate.
|type=S-53  
|summary=Trigger Recognizer  
|image=Tek-s53.jpg
|caption=S-53 head
|introduced=1971
|discontinued=1989
|designers=
|manuals=
* [[Media:070-1147-00.pdf|Tektronix S-53 Manual]], Oct 1987
* [https://w140.com/tek_s53_sch.png S-53 Schematic] (PNG)
<small>
''Alternate copies''
* [https://w140.com/tek_s53.pdf Tektronix S-53 Manual (bad text, good schematic)]
* [https://w140.com/tek_s53_good.pdf Tektronix S-53 Manual (good text, bad schematic)]
</small>
}}
The Tektronix S-53 '''Trigger Recognizer''' head can be used in the right bay of the [[7S12|7S12 TDR/Sampler plug-in]]
or externally in a type [[285]] enclosure. It essentially contains the entire trigger circuit of an oscilloscope.


{{BeginSpecs}}
{{Spec | Bandwidth | 1 GHz }}
{{Spec | Input impedance | 50 Ω [[BNC connector]] }}
{{Spec | Sensitivity | 10 mV to 1 V (p-p) }}
{{Spec | Jitter | max. 15 ps or less (from input signal to trigger-out) }}
{{Spec | Delay | 15 ns (from input signal to trigger-out) }}
{{Spec | Trigger-out signal | 1 V into 50 Ω with 600 mV/ns slew rate, [[BSM connector]] }}
{{EndSpecs}}


* [http://w140.com/tek_s53.pdf Tektronix S-53 Manual (bad) (PDF)]
==Internals==
* [http://w140.com/tek_s53_good.pdf Tektronix S-53 Manual (good) (PDF)]


The S-53 uses tunnel diode triggering with an amplifier before the tunnel diode. 
The signal first passes through a compensated NPN differential amplifier, Q10 and Q12, which provides an adjustable trigger offset voltage and trigger polarity selection.
Switching diodes CR6 and CR8 are used for selecting the trigger polarity. 
The differential amplifier (i.e., phase splitter) generates both phases, inverted and non-inverted. 
Depending on the position of the trigger polarity switch, one or the other of the phases is shunted by 200 Ω resistor. 
The two signals are buffered by common-base amplifiers Q20 and Q22, whose collector currents are summed. 
R25 sets up a bias current on trigger tunnel diode CR25. 
The extra current from Q20 or Q22 pushes CR25 over its peak current, and it switches to the high voltage state. 
==Pictures==
<gallery>
<gallery>
Image:Tek s-53.jpg
Tek-s53.jpg
Tek s-53 on cart.jpg
Tek s53 left.jpg
Tek s-53.jpg|Front
TEKS53 b40391.jpg|Front
Tek s53 bottom.jpg
Tek s53 top.jpg
Tek s53 right.jpg
Tek s53 right2.jpg
Tek s53 rear.jpg
7s12-7s11-1ghz-store.jpg | S-53 in a [[7S12]] displaying a 1 GHz sine using a [[S-6]] sampling head. 2<sup>nd</sup> channel (top) on a [[7S11]] with [[S-4]] sampling head.
Tek s-53 in hand.jpg
Tek s53 sch.png|Schematic
</gallery>
</gallery>
[[Category:7000 and 3S series sampling heads]]
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/3261...70846"

Navigation menu