Micrel, Inc.

MICRF302

October 2008

14

M9999-100908-A

Bill of Materials

TX112-MICRF302 KEYFOB Evaluation Board Bill of Materials

Item

Quantity

Reference

Part

PCB Footprint

1

1

ANTENNA

ANTENNA

ANTENNA_LOOP2

2

1

BT1

3 volts, BATTERYHOLDER 23MM/COINCELL/THM

3

1

C1

4.7uF 6.3V

0805

4

1

C2

100pF 50V

0603

5

1

C4

1pF

0603

6

1

C5

22pF 50V

0603

7

3

C6

Not Placed

0603

C11

Not Placed

0603

C16

Not Placed

0603

8

1

C7

3.9pF

0603

9

2

C13

10pF

0603

C14

10pF

0603

10

1

C17

0.1µF 50V

0603

11

2

JPR1

0 OHMS

0402

JPR3

0 OHMS

0402

12

1

JPR2

0 OHMS NP

0402

13

1

L1

680nH

0805

14

1

L3

33nH

0603

15

1

L4

0 OHMS

0603

16

1

R1

(NC)

0402

17

1

R2

100K

0402

18

1

R4

100K

0402

19

1

R7

0 OHMS/ TBD

0603

20

4

S1

SW PUSHBUTTON

SW/PB/KEYBOARD

S2

SW PUSHBUTTON

SW/PB/KEYBOARD

S3

SW PUSHBUTTON

SW/PB/KEYBOARD

S4

SW PUSHBUTTON

SW/PB/KEYBOARD

21

1

U1

MICRF112YMM

10P-MSOP

22

1

U2

MICRF302

10P-MLF

23

1

Y1

13.560MHz

See MICRF112 Data

Sheet

Note:

1. Resistor, +/-5%, Vishay or equivalent.

2. Capacitor, ceramic, +/-5% Vishay, Murata or equivalent.

3. Inductors, 0603, 0805 Coilcraft CS series, wire wound, 5% or equivalent.