Texas Instruments LMX2595 EVM, Руководство пользователя

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Bringing LMX2595 to a Lock State
5 SNAU219B – June 2017 – Revised March 2020
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LMX2595 EVM Instructions – 20-GHz Wideband Low Noise PLL With
Integrated VCO
Figure 6. USB Communication Between TICS Pro and Reference Pro
3 Bringing LMX2595 to a Lock State
1. Load the default mode by clicking on Default configuration → Default Mode xxxx-xx-xx.
2. From the menu bar, select USB communications → Write All Registers to write all the registers to
LMX2595.
Figure 7. TICS Pro GUI LMX2595 Default Configuration
4 Loop Filter Configuration
The parameters for the loop filters are:
Table 2. Current Loop Filter Configuration
PARAMETER VALUE
VCO Gain 132 MHz/V
Loop Bandwidth 285 kHz
Phase Margin 65 deg
C1_LF 390 pF
C2_LF 68 nF
C3_LF Open
C4_LF 1800 pF