Operation
42
Clock Synthesizer 13.5 GHz User Guide
The GPIB connector and 5-bit address switch is accessible from the rear panel.
All GPIB devices on the same GPIB bus must have different addresses to
function together. GPIB devices are programmed by referencing the address of
the device, as well as the bus type. This is detailed in Section 5.
4.4
Power-on State
The power-on state of the N4963A is set after turning the rear power switch
on. The unit comes on in local mode, and is controlled by the front panel. The
internal TXCO is active after turn-on and generates a 10.0 MHz reference signal
for the low frequency PLL. The power-defaults for the synthesizer are shown in
Table 11. The user may now use the front panel controls to change the status
of the unit or issue it commands through the GPIB port. Although the
synthesizer is on, no clock signal is available from the output ports and the
clock on LED is off. The clock output only becomes available when the Clock
On button is pressed, at which time the clock on LED is lit.
Table 12. N4963A power-on state
Setting
Power on Value
Display
Discription
Local
On
Light
Local push-button control (GPIB
interface when light off)
Clock -> On
Off
Light
Clock output indicator
Ext 10MHz
Off
Light
Reference path indicator
Jitter Select
Jitter Off
3 lights
Selects jitter input source
Unleveled
Off
Light
Indicates output is un-calibrated
FREQ
5.000 GHz
Displayed
Synthesizer clock rate
AMP
0.500 V
Not Displayed
Channel output amplitudes: A1 – A4
DC OFFSET
0.000 V
Not Displayed
Front panel DC offsets: O1 and O2
DELAY
90 Degrees
Not Displayed
Channel 1 phase offset
JITTER FREQ
100 kHz
Not Displayed
Jitter modulation frequency
J 00.1ui
0.1 UI
Not Displayed
Amount of internal injected jitter
Ext UI=16
16
Not Displayed
External jitter scaling factor
PRE=008
8
Not Displayed
Trigger output divider modulus
This Manual:http://www.manuallib.com/agilent/n4963a-clock-synthesizer-user-guide.html
