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Chapter 5 Functional Description
Functional Block Description of the 58502A
User’s Guide 5-5
1-to-12 Amplifiers and Isolators Block
This block consists of twelve separate individual isolation amplifiers
that accomplish the distribution of the source frequency (ranging from
100 kHz to 10 MHz) into twelve available output channels with very
low phase noise and signal distortion at the rear-panel output BNC
connectors. In addition, each output is impervious to the effects an
adjacent channel short or open connection during normal operation.
A single input signal feeds all twelve isolation amplifiers that is routed
from the output of the 2-to-1 Switch block. This block includes BITE
hardware (Built In Test Equipment) that monitors the presence of all
twelve outputs and routes this information to the Controller block via
the output condition signal line.
Power Supply Module Block
This block provides +5, +15, and -15 Vdc to all other blocks in the
instrument. When ac power is used, it provides fuse protection, steps
down, rectifies, filters, regulates, and distributes internal dc power.