27
MODE
CONT
Waveform mode
N-BURST
2
Waves per burst
START ADRS
1
Start memory address
WAVELENGTH
1000
Number of points per waveform
TRIG SOURCE
EXT
External trigger source
OUTPUT
OFF
Output disabled
SWEEP
OFF
Sweep execution
MODULATION
OFF
Modulation execution
3.6
Memory
The waveform generator has two types of memory that can be stored and recalled:
-
Waveform Memory (8 waveforms per channel)
-
Setup Memory (0-49 buffer storage locations)
Up to 8 full waveforms can be stored, each with up to the maximum waveform memory points
available per channel.
4075B
4078B
4076B
4079B
4077B
4080B
Channels
1
2
1
2
1
2
Waveform
Memory
Length
2 points to 1,048,576 points
2 points to 4,194,304 points
2 points to 16,777,216 points
The user can edit arbitrary waveforms in waveform memory and specify any data value in the range
from -8191 to 8191 for any point in waveform memory (14-bit depth). Due to the large memory bank,
users have greater freedom in selecting the size and number of waveforms they desire to generate. The
STORE and RECALL functions can be used to save the starting address and length of up to 49 different
waveforms as reference point setups for quick recall.
Note:
The 49 different setups are shared between all 8 arbitrary waveform memory banks. For
instance, if Setup 1 is saved from address 1 to 1000 for ARB Wave 1, then ARB Wave 2 is selected and
Setup 1 is recalled, address 1 to 1000 will be the recalled reference points.
Waveform Memory setup example:
4080B users could segment one 16,777,216-point arbitrary waveform bank to create a waveform with 1
Mpts, another waveform with 5 Mpts, a third waveform with 4 Mpts, and a fourth waveform with 6
Mpts as shown in figure below.
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