Product specifications

11
Internal pulse modulators
The PNA-X with the internal pulse modulator options adds a pulse modulator
to the “OUT 1” of each internal source (Option 021 for Source 1 and Option 022
for Source 2). Both modulators are driven by a common pulse, which can be
selected from P1 through P4 internal pulse generators, or external pulse inputs
with minimum pulse width of system clock timing resolution.
Pulse I/O
The pulse input/output (I/O) port on the PNA-X rear panel adds accessibility
to internal pulse generators and modulators, and enables synchronous pulse
measurements with external pulse generators or a device under test (DUT).
The N1966A pulse I/O adapter converts the 15-pin D-sub connector to SMB
connectors for five PULSE IN (inputs for A, B, C/R1, D/R2, and R receiver
gates), PULSE SYNC IN (to trigger internal pulse generators for pulse
modulation and data acquisition), RF PULSE MOD IN (to modulate RF sources),
and four PULSE OUT (P1 through P4). The four PULSE OUT ports are hard-
wired to the internal pulse generators without switches. Figure 8 shows how
the pulse I/O connectors map to the IF block diagram.
Figure 8. Rear panel pulse I/O