LMS7002M Quick Starter Manual for EVB7 kit
21 |
P a g e
Version: 2.2
Last modified: 29/09/2014
Figure 12 TBB register setup procedure
Testing the TX Output
5.3
When the transmitter is configured as shown in section 5.2, the TX1_A output (socket X1) can
be connected to a spectrum analyzer (SA). The SA you can now observe the results of this basic
operational test (
). The test is looking at the DC offset from the un-programmed data
DAC as LO leakage and the example shown below is measuring a value of -26.8dBm.
Figure 13 Basic TX testing using DC offset resulting in LO leakage
Step 1
Step 2
Step 3
Step 4