[AK1220]
10. Typical Evaluation Board Schematic
VSS
Current Adjustment Resistor
22 to 56kΩ
BIAS
VDD
(Powefeeding for Open-drain
AK1220
LO Input
LOINP
50Ω
100pF
LO Buffer
Iref
10nF
LOINN
RFIN
100pF
VSS
VSS
100pF
C1
Output Load
Resistor
BALUN
IF Output
IFOUTP
IFOUTN
Mixer
VDD
RF Input
L1
VSS
IF Output
Impedance Matching
VSS
RF Input
Impedance Matching
100pF
10nF
VSS
VDD
Fig. 11 Typical Evaluation Board Schematic
Note 1) The open drain output needs power feeding via a inductor. (IFOUTP pin and IFOUTN)
Note 2) It is necessary to adjust impedance matching as to its setting frequency. (RF input and IF output)
MS1165-E-01
16
2010/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
