MCRF450 查看數據表（PDF） - Microchip Technology

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MCRF450

13.56 MHz Read/Write Passive RFID Device

Microchip Technology 

MCRF450/451/452/455

TABLE 2-8: INTERNAL RESONANT CAPACITANCE AND ANTENNA INDUCTANCE

REQUIREMENTS

Device

Name

Resonant

Capacitance

(Antenna A to

VSS)

External

Inductance

Requirement

between Antenna

A and VSS for

13.56 MHz tag

Connection to External

Antenna Circuit

Reference

MCRF451 95 pF ±10%

1.45 µH ±10%

Antenna A, B, and

VSS pads

This device requires three

connections to an external circuit.

Good for direct die attachment onto

antenna.

MCRF452 30 pF ±10%

4.591 µH ±10%

Antenna A and VSS pads This device requires only two

antenna connections. Good for both

direct die attachment and COB.

MCRF455 50 pF ±10%

2.76 µH ±10%

Antenna A, B, and

VSS pads

This device requires three

connections to an external circuit.

Good for direct die attachment onto

antenna.

Note: The internal capacitance value for bumped die is about 1 pF higher than the unbumped die’s capacitor.

 2003 Microchip Technology Inc.

DS40232H-page 11

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