196 Keysight CXG, EXG, and MXG X-Series Signal Generators Service Guide
RF Assembly
A3 RF Assembly Overview
If option 303 or option UNT is installed the LF Function Generator can route its
available functions to the rear panel LF OUT port.
Trigger Control
The Trigger Control is used to route either one of the instrument internal
trigger signals to the rear panel TRIG 1 or TRIG 2, or an external trigger to the
internal trigger circuitry.
Sweep Out Interface
The Sweep Out Interface is used by the sweep function of the instrument.
When a sweep is being run the instrument will generate a sweep ramp from 0
to 10 volts DC that will track the progress of the sweep and output it to the rear
panel SWEEP OUT connector.
Instrument Interface Section
In addition to providing the RF output signal for the instrument, the A3 RF
assembly also provides many other instrument interface functions. These
include hosting the following:
— A4 Solid State Disk Drive (vector instruments)
—A5 CPU assembly
— Backup battery
— Power on and status circuitry
— Rear panel communication interface
— USB (Type A and B)
—LAN
—GPIB
— Rear panel Option 006 SD memory card interface
— Interface from A5 CPU to A6 Front Panel Interface
The location of each of these is shown in Figure 10-2.
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