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11A32: Difference between revisions
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The 11A32 uses the same firmware as the [[11A34]]. | The 11A32 uses the same firmware as the [[11A34]]. | ||
The display output of the channel 1 M377 amplifier (A1U310) is in parallel with the display output of the channel 2 M377 amplifier (A1U410) | |||
and the combined signal is presented to the mainframe via the plug-in interface connector. | |||
The same is true of the trigger outputs of both amplifiers. | |||
This is possible because | |||
* regardless of whether the amplifier's output is enabled, each amplifier's output has a source impedance of 100 Ω so the two amplifiers in parallel match the 50 Ω spec of the [[11000 Series plug-in interface]]. | |||
* regardless of whether the amplifier's output is enabled, each amplifier's nominal common-mode output voltage is zero (without signal input) | |||
* regardless of whether the amplifier's output is enabled, each amplifier's nominal differential output voltage is zero (without signal input) | |||
See the block diagram below. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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Tek 11a32.jpg | Tek 11a32.jpg | ||
Tek 11a32 2.jpg | Tek 11a32 2.jpg | ||
Tek 11a32 block diagram.png | Tek 11a32 block diagram.png|Block diagram | ||
Tektronix 11A32 schematic pg 2 stitch.jpg|11A32 Main Board Schematic | Tektronix 11A32 schematic pg 2 stitch.jpg|11A32 Main Board Schematic | ||
Tektronix 11A32 schematic pg 4.jpg|11A32 Main Interface | Tektronix 11A32 schematic pg 4.jpg|11A32 Main Interface | ||