[AK1224]

MS1413-E-01

14

2013/05

9.

Typical Evaluation Board Schematic

1. Typical Evaluation Board Schematic

Fig.10 Typical Evaluation Board Schematic

Note)

The exposed pad at the center of the backside should be connected to ground.

Note)

The open drain output needs power feeding via a inductor. (IFOUTP pin and IFOUTN pin)

Note)

It is necessary to adjust impedance matching as to its setting frequency. (RF input and IF output)

2.

Example of impedance matching

・RFIN

Frequency[MHz]

C1[pF]

L[nH]

Impedance[ohm]

100

68

220

49.3 - j5.4

600

15

22

48.3 - j0.7

900

12

12

44.48

– j1.0

RFIN

RF Input

AK1224

C

L