[AK1224]
9. Typical Evaluation Board Schematic
1. Typical Evaluation Board Schematic
Fig.10 Typical Evaluation Board Schematic
Note)
Note)
Note)
The exposed pad at the center of the backside should be connected to ground.
The open drain output needs power feeding via a inductor. (IFOUTP pin and IFOUTN pin)
It is necessary to adjust impedance matching as to its setting frequency. (RF input and IF output)
2. Example of impedance matching
・RFIN
RF Input
C
RFIN
AK1224
L
Frequency[MHz]
C1[pF]
L[nH]
220
22
Impedance[ohm]
49.3 - j5.4
100
600
900
68
15
12
48.3 - j0.7
12
44.48 – j1.0
MS1413-E-01
14
2013/05
AKM [ ASAHI KASEI MICROSYSTEMS ]
