Texas Instruments LMX2820EVM, Руководство пользователя

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3 Setup
3.1 Connection Diagram
HPA665
USB2ANY
Texas Instruments
50
Figure 3-1. EVM Connection Diagram
3.2 Power Supply
Apply 3.3 V to the J8 header. The acceptable supply voltage range is 3.2 V to 3.4 V.
3.3 Reference Clock
Connect the OSCINP SMA connector to a high-quality, 100-MHz signal source. The OSCINN SMA connector
can be left open because the OSCIN_N pin is terminated onboard.
The EVM is configured for single-ended input with the OSCIN_P pin connected to the OSCINP SMA connector
and the OSCIN_N pin 50-Ω terminated onboard. If required, the EVM can be modified to operate with a different
clock source in a different configuration. See
Appendix A for more details.
3.4 RF Output
Connect either the RFOUTAP or RFOUTAN SMA connector to a signal analyzer. The unused connector must be
terminated with a 50-Ω resistor or SMA load. Output frequency is 6 GHz and the amplitude is about +3 dBm.
By default, the TICS Pro evaluation software has RFOUTB power down. These SMA connectors can be left
open.
3.5 Programming
Connect the ribbon cable from the USB2ANY to the LMX2820EVM.
Connect the USB cable from a PC to USB port in the USB2ANY. This provides power supply to the USB2ANY
and communication with the TICS Pro. A firmware update may be required. See
Appendix B for more details.
Setup www.ti.com
4 LMX2820EVM Evaluation Module SNAU246A – JUNE 2020 – REVISED JANUARY 2021
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