BK Precision 4070A User Manual Rev.2.2
57
This format represents a full-scale output with a base 10 number that ranges from -2047 to +2047 as follows:
-2047 ---- -1024 --- 0 ---- 1024 ---- 2047
-1.0 -.5 0.0 +.5 +1.0
Rules for Integer format:
1. The 4070A expects all Integer values to be between -2047 and +2047. If a number falls outside that range, the
number is set to +2047 or -2047. These correspond to the peak values of the waveform. If the output voltage
level were set for 5V p-p, for example, then +2047 corresponds to +2.5V and -2047 corresponds to -2.5V (across
a 50 ? load). For maximum signal fidelity, you should design your waveform so that the peak values “just fit”
into the range of +2047 to -2047. You will then be using the full output range of the DAC.
2. To separate each number, you may use commas, tabs, spaces, carriage returns and/or linefeeds, semicolons,
colons or basically any character that is not among the following: 0 1 2 3 4 5 6 7 8 9
. - + e E X
3. Use of the "+" character for positive values is optional.
4. Leading “0”’s are ignored.
5. To set SYNC Out high during a data point, put a "p" or "P" BEFORE that data point. The "P" character may have
white space around it if desired. SYNC Out is set low for all data points that do not have a “p” or “P” before
them.
Example: A seven points waveform in integer format with SYNC Out set high on point #3:
0, 123 P -1511 -320 +12, +2047, -0032 x
The “x” character denotes the end of the data and is optional. If the “x” character is missing, the 4070A will assume
all data has been sent after 1-second timeout.