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1 Evaluation Board Setup and Description
Figure 1-1 LMX2615EVM Setup and Description
Power:
Set power supply to 3.3 V with 600-mA current limit and connect to VCC SMA.
Input Signal
The EVM is designed for a 100-MHz input reference that should be connected to the OSCin SMA. Some of the options for this could be a signal generator, the 100 MHz output from the Reference Pro board, or a very clean signal source such as the Wenzel 501-4623G ultra-low phase noise 100 MHz reference
Programming Interface:
Reference Pro will provide SPI interface to program LMX2615. If using this, Connect USB cable from laptop or PC to USB port in Reference Pro. This provides power to Reference Pro Board and communication with TICS GUI
The other option is to use the dip switch on the board to use Pin mode.
Output:
Connect RFoutAP to a phase noise analyzer and connect a 50-Ω terminator to RFoutAM.
From the menu bar choose Select Device → PLL + VCO → LMX2615
Figure 2-1 Search for LMX2615 on TICS Pro
Verify the communication setup with Reference Pro. To do this, select USB communications → Interface . Click on the identify button and the LED on the Reference Pro should blink.