Atec Agilent-81180A - Manual (Page 12)

12
Standard waveforms frequency control
Characteristics Description
Range 10 kHz to 250 MHz
Resolution 8 digits
Accuracy
Internal reference
≤ 1 ppm from 19 ºC to 29 ºC; 1 ppm/ºC below 19 ºC or above 29 ºC; ≤ 1 ppm/year aging rate
External reference Same as accuracy and stability of the external reference. Reference is applied to the
reference input.
Arbitrary waveforms
Characteristics Description
General Arbitrary waveforms are created on a remote computer and downloaded to the
arbitrary waveform memory through one of the available remote interfaces. The
frequency of the waveform is calculated from its programmed sample clock value and
the number of waveform points that were used for creating the waveform.
Waveform length 320 to 16,000,000 points (320 to 64,000,000 with Option (264), in multiples of 32 points
Number of waveforms 1 to 16,000
Dynamic waveform control Software command or rear-panel segment control input (D-sub, 8-bit lines)
Waveform jump timing Coherent or asynchronous, selectable
DAC resolution 12 bits
Sequenced waveforms
Characteristics Description
General Segments are grouped in a sequence table that links, loops and jumps to next in user-
defined scenarios. Sequence steps are advanced on trigger events or remote commands.
Each channel has its own sequence scenario.
Sequence scenario 1 to 1,000 unique scenarios, programmed in sequence tables
Sequence table length 1 to 16k steps
Step advance control Auto, once (x “N”) and stepped
Loop counter
Segment loops
1 to 1,000,000 cycles, each segment
Sequence loops 1 to 1,000,000 (applies to “Once” sequence advance mode only)
Accuracy 10 ps