Atmel ATAK2270 Manuel d'utilisateur télécharger pdf (Page 12)

Description of the Application Board System

RFID Application Kit ATAK2270 User Manual 3-5

4871E–RFID–04/08

3.3.3.5 Capacitors

CANT1 1.8 nF II 120 to 180 pF/100V COG

CANT2 330 (270) pF/100V COG radial

CTUNE1 150 pF/100V COG 0805

CTUNE2 330 pF/100V COG 0805

C3 10 µF/16V radial

C4 22 µF/16V radial

C5 22 µF/16V radial

C6 220 nF 0805

C7 6.8 nF/100V 0805

C8 2.2 nF/100V 0805

C9 4.7 nF 0805

3.3.3.6 Miscellaneous

 SUB-D 9-pole socket

 3-pole connector for coil

 Gold-pin block for jumper (1 × 3-pole)

 2 gold-pin block 1 × 18-pole (used for pin connector to the main board)

The antenna coil included in the kit measures the following parameters related to 125 kHz:

Inductance L = 700 µH

Coil diameter d = 100 mm

Winding number n = 60

Wire diameter d

= 0.25 mm

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 38 39

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Atmel ATAK2270 Manuel d'utilisateur Page 12