S-53: Difference between revisions

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{{Plugin Sidebar |
{{Plugin Sidebar
title=Tektronix S-53 |
|manufacturer=Tektronix
summary=Trigger Recognizer |
|series=7000 and 3S series sampling heads
image=S53-crop.jpg |
|type=S-53  
caption=S-53 head |
|summary=Trigger Recognizer  
series=[[3S2]], [[7S11]], [[7S12]] Sampling Plugins |
|image=Tek-s53.jpg  
years=? – ? |
|caption=S-53 head  
manuals=
|introduced=1971
* [http://w140.com/tek_s53_oct1987.pdf Tektronix S-53 Manual (October 1987, good quality, PDF)]
|discontinued=1989
* [http://w140.com/tek_s53.pdf Tektronix S-53 Manual (bad text, good schematic) (PDF)]
|designers=
* [http://w140.com/tek_s53_good.pdf Tektronix S-53 Manual (good text, bad schematic) (PDF)]
|manuals=
* [http://w140.com/tek_s53_sch.png Tektronix S-53 Schematic (PNG)]
* [[Media:070-1147-00.pdf|Tektronix S-53 Manual]], Oct 1987
<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>
* [[Media:Tek s-53 eis cover.pdf|S-53 Engineering Instrument Specification cover page]]
}}
}}
The Tektronix S-53 '''Trigger Recognizer''' is essentially the entire trigger circuit of an oscilloscope.   
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.   


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. 
==Specifications==
{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Bandwidth | 1 GHz }}
{{Spec | Bandwidth | 1 GHz }}
{{Spec | Input impedance | 50 Ω [[BNC connector]] }}
{{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 | Jitter | max. 15 ps or less (from input signal to trigger-out) }}
{{Spec | Trigger-out signal | 1 V into 50 Ω with 600 mV/ns slew rate }}
{{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}}
{{EndSpecs}}
==Links==
{{Documents|Link=S-53}}
{{PatentLinks|S-53}}
==Internals==
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==
==Pictures==
<gallery>
<gallery>
File:Tek s53 front.jpg
Tek-s53.jpg
File:Tek s53 left.jpg
Tek s-53 on cart.jpg
Image:Tek s-53.jpg|Front
Tek s53 left.jpg
Image:TEKS53 b40391.jpg|Front
Tek s-53.jpg|Front
File:Tek s53 bottom.jpg
TEKS53 b40391.jpg|Front
File:Tek s53 top.jpg
Tek s53 bottom.jpg
File:Tek s53 right.jpg
Tek s53 top.jpg
File:Tek s53 right2.jpg
Tek s53 right.jpg
File:Tek s53 rear.jpg
Tek s53 right2.jpg
File: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 s53 rear.jpg
Image:Tek s53 sch.png|Schematic
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]]
[[Category:7000 and 3S series sampling heads]]

Latest revision as of 10:54, 19 June 2024

Tektronix S-53
Trigger Recognizer
S-53 head

Compatible with 7000 and 3S series sampling heads

Produced from 1971 to 1989

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix S-53 Trigger Recognizer head can be used in the right bay of the 7S12 TDR/Sampler plug-in or externally in a type 285 enclosure. It essentially contains the entire trigger circuit of an oscilloscope.

Key Specifications

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

Links

Documents Referencing S-53

(no results)

Internals

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

  • Front

    Front

  • Front

    Front

  • S-53 in a 7S12 displaying a 1 GHz sine using a S-6 sampling head. 2nd channel (top) on a 7S11 with S-4 sampling head.

    S-53 in a 7S12 displaying a 1 GHz sine using a S-6 sampling head. 2nd channel (top) on a 7S11 with S-4 sampling head.

  • Schematic

    Schematic

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