Keysight E8357D/67D & E8663D PSG User’s Guide 35
Signal Generator Overview
Rear Panel
without Option 601/602, this female BNC connector can be used to output the
complement of the quadrature–phase component of an external I/Q
modulation that has been fed into the Q input connector.
Q–bar OUT is used in conjunction with Q OUT to provide a balanced baseband
stimulus. Balanced signals are signals present in two separate conductors that
are symmetrical relative to ground and are opposite in polarity (180 degrees
out of phase). The nominal output impedance of the Q–bar OUT connector is
50 ohms, dc–coupled.
15. AC Power Receptacle
The ac line voltage is connected here. The power cord receptacle accepts a
three–pronged power cable that is shipped with the signal generator.
CAUTION
Always use the three-prong AC power cord supplied with this product. Failure
to ensure adequate earth grounding by not using this cord can cause product
damage.
This instrument has auto-ranging line voltage input; be sure the supply
voltage is within the specified range and voltage fluctuations do not to
exceed 10 percent of the nominal supply voltage:
E8257D: 100/120 VAC 50/60/400 Hz, 220/240, VAC 50/60 Hz, < 250 W
typical, 450 W maximum
E8267D: 100/120 VAC 50/60/400 Hz; or 220/240 VAC 50/60 Hz,
(automatically selected); < 400 W typical, 650 W maximum
E8663D: 100/120 VAC 50/60/400 Hz; or 220/240 VAC 50/60 Hz,
(automatically selected); < 250 W typical, 450 W maximum
16. GPIB
This GPIB interface allows listen and talk capability with compatible IEEE 488.2
devices.
17. 10 MHz EFC
This female BNC input connector (Options UNR/UNX only) accepts an external
dc voltage, ranging from
−
5 V to +5 V, for electronic frequency control (EFC) of
the internal 10 MHz reference oscillator. This voltage inversely tunes the
oscillator about its center frequency (approximately
−
0.0025 ppm/V). The
nominal input impedance is greater than 1 Mohms. When not in use, this
connector should be shorted using the supplied shorting cap to assure a stable
operating frequency.
