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S-52: Difference between revisions
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The pretrigger pulse uses an [[Connectors#BSM|BSM connector]]. | The pretrigger pulse uses an [[Connectors#BSM|BSM connector]]. | ||
The S-52 generates the main output pulse using a [[tunnel diodes|tunnel diode]] with part number [[153-0400-00]]. | The S-52 generates the main output pulse using a 50 mA low-capacitance [[tunnel diodes|tunnel diode]] with part number [[153-0400-00]]. | ||
The S-52 is [[S-50#Comparison_of_S-50_and_S-52|similar to the S-50]], but the S-50 has twice the pulse amplitude. | The S-52 is [[S-50#Comparison_of_S-50_and_S-52|similar to the S-50]], but the S-50 has twice the pulse amplitude. | ||
The reason for this is that the S-52 has a | The reason for this is that the S-52 has a 48 Ω resistor between the output tunnel diode and the output connector providing back termination, | ||
while the S-50 has no such resistor. Although the S-52 produces a smaller pulse, its output impedance is much better controlled than that of the S-50, and the output resistor may also provide some limited protection for the output | while the S-50 has no such resistor. Although the S-52 produces a smaller pulse, its output impedance is much better controlled than that of the S-50, and the output resistor may also provide some limited protection for the output | ||
tunnel diode. | tunnel diode. | ||
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==Specifications== | ==Specifications== | ||
{{BeginSpecs}} | |||
{{Spec | Output amplitude | 200 mV into 50 Ω (SMA)}} | |||
{{Spec | Rise time | < 25 ps}} | |||
{{Spec | Pre-trigger output | 85 ns before main pulse (jitter < 10 ps), +1 V into 50 Ω (BSM) }} | |||
{{EndSpecs}} | |||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
File:Tek s52.jpg | S-52 front | |||
File:Tek s-52.jpg | S-52 in [[7S12]] TDR plugin | |||
File:Tek-s52-1.jpg | Timing board | |||
File:Tek-s52-2.jpg | Pretrigger | |||
File:Tek-s52-3.jpg | Pulser diode driver | |||
File:Tek-s52-4.jpg | Pulser diode mount | |||
File:Tek-s52-diode-mount.jpg | Pulser diode mount, detail | |||
File:Tek_s-52_schem2.png | File:Tek_s-52_schem2.png | ||
</gallery> | </gallery> | ||
[[Category:7000 and 3S series sampling heads]] | [[Category:7000 and 3S series sampling heads]] | ||