Texas Instruments TRF1500 - Manual (Page 54)

SWRA004A
TRF1500 Integrated Dual-Band RF Receiver User’s Guide 55
1) Set the network analyzer to measure the low band RF
frequency (see Table 5).
2) Set the power range to -35 dBm through -20 dBm, and then
set the input power to -30 dBm.
3) Perform a full one-port calibration on port 1 of the network
analyzer.
4) Set the network analyzer to measure S11.
5) Connect the EVM RF input, J30, to port 1 of the network
analyzer.
6) Measure the RF input return loss.
Low-Band Transmit Mixer: Power Leakage LO In to TX In
Control state: 010100
SEE APPENDIX A: TEST BENCH SETUPS
Test setup Figure 23
The LO In leakage at the TX In port is measured at the low band
TX input port J30. Power leakage is a measure of power (in dBm)
that couples to the TX port. The measurement is performed using
a RF source and a spectrum analyzer.
1) Set the LO source frequency and input power (see Table 5).
Connect the LO source to the EVM LO input port, J12.
2) Set the spectrum analyzer to measure at the LO frequency
(see Table 5).
3) Connect the TX In Port, J30, to the spectrum analyzer.
4) Measure the LO leakage power.
Low-Band Transmit Mixer: Power Leakage TX In to LO In
Control state: 010100
SEE APPENDIX A: TEST BENCH SETUP
Test setup Figure 24
The Power leakage from TX IN to LO IN is measured at the LO in
port, J12. A leakage is a measure of power (in dBm) that couples
to the LO IN port. The measurement is performed using a RF
source and a spectrum analyzer.