31,980
edits
11A32: Difference between revisions
no edit summary
No edit summary |
No edit summary |
||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 16: | Line 16: | ||
* [[Media:061-3381-00.pdf|Tektronix 11A32 Preliminary Service Manual]]] | * [[Media:061-3381-00.pdf|Tektronix 11A32 Preliminary Service Manual]]] | ||
}} | }} | ||
The '''Tektronix 11A32''' is a 400 MHz dual-channel amplifier plug-in for [[11000-series scopes]]. | The '''Tektronix 11A32''' is a 400 MHz dual-channel amplifier plug-in for [[11000-series scopes]] and DSA600-series scopes. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
| Line 32: | Line 32: | ||
==Internals== | ==Internals== | ||
===Analog=== | ===Analog=== | ||
Each input channel has a separate attenuator module containing passive 1 megohm attenuators, a 50 ohm termination resistor, an AC coupling capacitor, a switch selecting the calibrator or signal input, and an [[M474]] buffer amplifier. In normal operation the calibrator signal to the attenuator is instead connected to ground. | Each input channel has a separate attenuator module, part number [[119-2000-0x]], | ||
containing passive 1 megohm attenuators, a 50 ohm termination resistor, an AC coupling capacitor, | |||
a switch selecting the calibrator or signal input, and an [[M474]] buffer amplifier. | |||
In normal operation the calibrator signal to the attenuator is instead connected to ground. | |||
The attenuator module output feeds the + input of the [[M377]] amplifier IC through a (blue) 50 ohm transmission line, one per input channel. The cable lengths set a standard delay per plugin. | The attenuator module output feeds the + input of the [[M377]] amplifier IC through a (blue) 50 ohm transmission line, one per input channel. The cable lengths set a standard delay per plugin. | ||
| Line 89: | Line 92: | ||
Tek 11a32 2.jpg | Tek 11a32 2.jpg | ||
Tek 11a32 block diagram.png|Block diagram | Tek 11a32 block diagram.png|Block diagram | ||
Tek 11a32 input attenuators.jpg|11A32 Input Attenuators | |||
Tek 11a32 kernel.jpg|11A32 Kernel | |||
Tek 11a32 analog control and signal amplifiers.jpg|11A32 Analog Control and Signal Amplifiers | |||
Tektronix 11A32 schematic pg 4.jpg|11A32 Main Interface | Tektronix 11A32 schematic pg 4.jpg|11A32 Main Interface | ||
Tek 11a32 internal1.jpg|left side internal | Tek 11a32 internal1.jpg|left side internal | ||