TRF2443 EVM Operating Procedures
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Figure 31. XPIC Receiver Max Gain GUI
iii. Apply CW signal to J32 (XPICIN) of 140.1 MHz, -32dBm.
iv. Measure output at 100kHz at J16 (XPICI) or J25 (XPICQ) on a spectrum analyzer.
v.
Calculate Gain = (Pout at spectrum an 13) - Pin. Typical gain value should be greater than
25dB.
b. MIN GAIN
i.
Change XPIC AGC voltage from 700mV to 0mV as shown in
Figure 32
.
Figure 32. XPIC Receiver Min Gain GUI
ii.
Adjust Pin until -17dBm is measured on output spectrum analyzer.
iii. Calculate Gain = (Pout at spectrum an13) - Pin. Typical value should be around 4dB.
List of Tables
22
SLWU065 – September 2009
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