LMS7002M Quick Starter Manual for EVB7 kit
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Version: 2.2
Last modified: 29/09/2014
Once I/Q gain and phase calibration is completed, connections should not be modified.
Cables and connections should not be moved once the I/Q gain and phase calibration is
completed.
8.3.2.
Enabling the Arbitrary Waveform Generator
The arbitrary waveform generator will run test vectors which are downloaded to it. These can be
generated either with Agilent’s “Signal Studio” program or can be generated independently via
“Matlab” or C.
Lime has a number of test vector files which are used for test and calibration of the LMS7002M
as follows:
DC.wfm – Differential DC tone for TX CW testing (clock 52 MHz).
onetone1.wfm - single tone at 1 MHz offset for sideband suppression calibration/test
(clock 52 MHz).
twotone.wfm - two tone signal for linearity testing for MXG and LMS7002M use
MXG IQ scaling factor of 30% (clock 52 MHz).
wcdma31.wfm - TM2 WCDMA signal - use MXG IQ scaling factor of 30%
(clock=15.36 MHz).
EDGE3.wfm - GSM EDGE modulated test signal - (clock=13 MHz).
To download files to the signal generator follow the process described in section 9.3.3.
To apply the correct file
1.
Press ‘Mode’ button (23)
2.
Press ‘Dual Arb’ softkey (3. softkey 1)
3.
Press ‘Select waveform’ softkey (3. softkey 2)
4.
Use up/down arrows (5) or spin knob (18) to select the wanted waveform from list.
5.
Press ‘Select waveform’ softkey (3. softkey 1)
6.
The name of the selected waveform should now be present in the display window
7.
The soft key list should have moved up one level back to ‘Arb’
8.
Now change the Arb clock frequency
9.
Press ‘Arb setup’ softkey (3. softkey 3)
10.
Press ‘Arb sample clock’ softkey (3. softkey 1)
11.
Type in the required frequency on the number pad eg for 13 MHz type ‘13’ and press
‘MHz’ softkey (3. softkey 2)
12.
The sample clock frequency should now be displayed on the screen.
13.
Now scale the waveform data if necessary
14.
Go to the ‘Arb’ softkey menu
a.
Either press the ‘return’ button from the ‘Arb setup’ menu or
b.
Press the ‘Mode’ button then ‘Dual Arb softkey (3. softkey 1)
15.
Press the ‘More’ button (21)
16.
Press the ‘Waveform Utilities’ softkey (3. softkey 2)
