Pulse/Trig Gate Input; Alc Input; Data Clock; I In - Keysight E8267D User Manual

Signal Generator Overview
Rear Panel

36. PULSE/TRIG GATE INPUT

This female BNC input connector (functional only with Options UNU or UNW)
accepts an externally supplied pulse signal for use as a pulse or trigger input.
With pulse modulation, +1 V is on and 0 V is off (trigger threshold of 0.5 V with
a hysteresis of 10 percent; so 0.6 V would be on and 0.4 V would be off). The
damage levels are ±5 V
ohms. On signal generators without Option 1EM, this connector is located on
the front panel.

37. ALC INPUT

This female BNC input connector is used for negative external detector
leveling. This connector accepts an input of −0.2 mV to −0.5 V. The nominal
input impedance is 120 kohms and the damage level is ±15 V. On signal
generators without Option 1EM, this connector is located on the front panel.

38. DATA CLOCK

This female BNC input connector (E8267D only) is CMOS compatible and
accepts an externally supplied data clock input signal to synchronize serial
data for use with the internal baseband generator (Option 601/602). The
expected input is a 3.3 V CMOS bit clock signal (which is also TTL compatible)
where the rising edge is aligned with the beginning data bit. The falling edge is
used to clock the DATA and SYMBOL SYNC signals. The maximum clock rate is
50 MHz. The damage levels are > +5.5 V and < −0.5V. The nominal input
impedance is not defined. On signal generators without Option 1EM, this
connector located on the front panel.

39. I IN

This female BNC input connector (E8267D only) accepts the in–phase (I)
component an externally supplied, analog, I/Q modulation. The
quadrature–phase (Q) component is supplied through the Q IN connector. The
signal level is
impedance is 50 or 600 ohms. The damage level is 1 V
activate signals applied to the I and Q input connectors, press Mux > I/Q
Source 1 or I/Q Source 2 and then select either Ext 50 Ohm or Ext 600 Ohm.
On signal generators without Option 1EM, this connector is located on the
front panel.

40. SYMBOL SYNC

This female BNC input connector (E8267D only) is CMOS–compatible and
accepts an externally supplied symbol synchronization signal for use with the
internal baseband generator (Option 601/602). The expected input is a 3.3 V
CMOS bit clock signal (which is also TTL compatible). SYMBOL SYNC might
occur once per symbol or be a single one–bit–wide pulse that is used to
Keysight E8357D/67D & E8663D PSG User's Guide
and 10 V . The nominal input impedance is 50
rms p
= 0.5 V for a calibrated output level. The nominal input
rms
and 10 V . To
rms peak
41