AK1548 Datasheet, PDF (39/42 Pages) Asahi Kasei Microsystems – 8GHz Low Noise Integer-N Frequency Synthesizer

Typical Evaluation Board Schematic
100pF
AK1548
REFIN
CP
220nF
VREF1
470nF
VREF2
Loop Filter
R3
C1
R2
C3
C2
100pF
BIAS RFINP
100pF
27kΩ
RFINN
51Ω
[AK1548]
RFOUT
VCO
18Ω
18Ω
100pF
18Ω
Note1)
Note2)
Although it is no problem that both of [TEST1] and [TEST2] are open, it is recommended that they should
be connected to ground.
Although it is no problem that Exposed Pad at the center of the backside is open, it is recommended that it
should be connected to ground.
MS1364-E-00
39
2012/1