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5
Phase Noise Validation - Integer Mode
Validate integer mode phase noise using the following steps:
1. The default loop filter populated on the TRF3722 EVM is an integer mode loop filter.
2. A 40-kHz bandwidth and 2.56-MHz Fpfd loop filter has been designed using the
tool, available from www.ti.com.
3.
Figure 12
shows the screen shot of a loop filter.
4. As an example, consider an 1800-MHz target frequency.
SLOU385 – May 2014
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Figure 12. Integer Mode Loop Filter
Copyright © 2014, Texas Instruments Incorporated
Phase Noise Validation - Integer Mode
loop filter calculator
TRF3722 EVM User's Guide
11
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