Micrel, Inc.

MICRF113

June 2008

16

M9999-060208

(408) 944-0800

L1

820nH

(470nH)

C1

10



F

6.3V

R7

R2

100k

Y1

13.560MHz

(9.4375MHz)

C2

F

50V

C11 NP

C12 NP

(4.7 F/

6.3V/

0805)

C6 NP

C7

4.7pF

(6.8pF)

C5

12pF 50V

(10pF 50V)

C16 NP

L4

68nH

(150nH)

L5

ANTENNA

C10

0.1



F

50V

C14

18pF

C13

18pF

C15 NP

1nF

4

5

6

3

3

2

2

1

1

XTLOUT

MICRF113YM6

XTLIN

ASK

VDD

VSS

PAOUT

Vdd

Vdd

REFOSC

DATA

DATA

CON 3

J1

DATA 3

GROUND 2

1.8V to 3.6V 1

Vdd

REFOSC

CON 2

J2

GROUND 2

EXTERNAL REF-OSC 1

Figure 9. TX113-1c Demo Board Schematic

Notes:

1.

Components labeled NP are not placed.

2.

Values without parentheses are for 433.92 MHz and values in parentheses are for 315MHz.

3.

Value of R7 is selected to vary the output power.