AK1547 Datasheet, PDF (34/37 Pages) Asahi Kasei Microsystems – 4GHz Low Noise Integer-N Frequency Synthesizer

[AK1547]
15. Typical Evaluation Board Schematic
AK1547
CP
100pF
REFIN
Loop Filter
R3
C1
R2
C3
C2
BIAS
27kΩ
100pF
RFINP
100pF
RFINN
51Ω
RFOUT
VCO
18Ω
18Ω
100pF
18Ω
Fig. 124 Typical Evaluation Board Schematic
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.
MS1464-E-00
34
2012/9