User’s Guide
LMX2594PSEVM Evaluation Instructions
ABSTRACT
The LMX2594PSEVM uses two LMX2594 synthesizers to generate two phase-coherent outputs with very fine
phase adjustment capability. The outputs of the synthesizers can also be combined to produce lower noise and
jitter than is possible with just one.
The LMX2594 is a high-performance, wideband synthesizer that can generate any frequency from 10 MHz to 15
GHz without using an internal doubler, thus eliminating the need for sub-harmonic filters.
Table of Contents
1 LMX2594PSEVM Evaluation Module.....................................................................................................................................3
1.1 Evaluation Module Contents.............................................................................................................................................. 3
1.2 Evaluation Setup Requirement.......................................................................................................................................... 3
1.3 Resources.......................................................................................................................................................................... 3
2 Setup........................................................................................................................................................................................4
2.1 Connection Diagram.......................................................................................................................................................... 4
2.2 Power Supply..................................................................................................................................................................... 4
2.3 Reference Clock.................................................................................................................................................................4
2.4 SYNC Input........................................................................................................................................................................ 4
2.5 RF Output...........................................................................................................................................................................4
2.6 Programming......................................................................................................................................................................4
2.7 Evaluation Software........................................................................................................................................................... 5
3 Typical Measurement..............................................................................................................................................................6
3.1 Category 3 Synchronization............................................................................................................................................... 6
3.2 Phase Noise Improvement.................................................................................................................................................7
www.ti.com Table of Contents
SNAU278 – JULY 2022
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LMX2594PSEVM Evaluation Instructions 1
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