User's Manual

TRF7970A
www.ti.com SLOS743K –AUGUST 2011–REVISED APRIL 2014
Resulting power out can be measured with a power meter or spectrum analyzer with power meter function
or other equipment capable of making a "hot" measurement. Observe maximum power input levels on test
equipment and use attenuators whenever available to avoid damage to equipment. Expected output
power levels under various operating conditions are shown in Table 6-25.
7.5 Reader Antenna Design Guidelines
For HF antenna design considerations using the TRF7970A, see these documents:
• Antenna Matching for the TRF7960 RFID Reader (SLOA135)
• TRF7960TB HF RFID Reader Module User's Guide (SLOU297)
Copyright © 2011–2014, Texas Instruments Incorporated Application Schematic and Layout Considerations 79
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