Atmel ATAK2270 - Manual (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
w
= 0.25 mm