AS3993-DK FERMI ams, AS3993-DK FERMI Datasheet - Page 15

• Manufacturer Part Number: AS3993-DK FERMI
• Description: RFID Transponder Tools AS3993 Demo Board Fermi
• Manufacturer: ams

Specifications of AS3993-DK FERMI

• Rohs: yes
• Product: RFID Readers
• Description/function: Demonstration Reader
• Frequency: 20 MHz
• Interface Type: SPI, USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 5 V
• Tool Is For Evaluation Of: AS3993
• For Use With: AS3993 UHF RFID Reader IC

AS3993 – AN13 – Received Signal Strength Indicator (RSSI)
PA Section:
Figure 11 - Schematic PA Section
The PA is supplied by the reader ICs internal voltage regulators. Since the reader ICs internal PA is
not used the corresponding voltage regulator (VDD_PA) is used for the external PA supply. The
power down pin of the external PA is supplied by the VDD_B regulator which is also supplies the 0
dBm output driver of the reader IC. The PA circuitry matches the proposal of the RF2172 datasheet.
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Revision 2.0 / 6/22/12
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