Quantec Zombies 12xx Series, Operation Manual

Page: 23 / 145

2. Menu Structure - 2.1 System Setup
ZOMBIEs 12xx
23
Test PLL
(/MX option only)
This submenu item is for initializing the capture range of the sample rate PLL to compensate
manufacturing tolerance.
System Setup
Test PLL
Pulsar to the submenu item
User Entry
Pulsar to the previous submenu item
View Clock Change
Exit back to the main menu item System Setup
Enter adjust the VCO idle frequency
Toggle
no function
ENTER takes the user to the submenu
Display PLL
and a readout such as the following
appears in the display.
PLL Adjust (kHz)
9.5< 10.96 <11.5
Pulsar back to the submenu item
Test PLL
Pulsar back to the submenu item
Test PLL
Exit back to the submenu item
Test PLL
Enter back to the submenu item Test PLL
Toggle
back to the submenu item
Test PLL
The bottom line of the display shows the following frequency valuess (in kHz):
9.5
<
10.96
<
11.5
Lower idle value of
Current VCO frequency
Upper idle value of
the VCO frequency (updated continuously) the VCO frequency
For standard sample rates ranging from 28 to 54 kHz, the measured VCO idle
frequency must be within the indicated interval.