FUJITSU MB15F74UL - Manual (Page 21)

MB15F74UL
21
■ REFERENCE INFORMATION
( for Lock - up Time , Phase Noise and Reference Leakage )
(Continued)
Test Circuit
S.G. OSC IN
fin
Do LPF
VCO
Spectrum
Analyzer
7.5 k
Ω
2.7 k Ω
15000 pF
1500 pF 330 pF
V CC
=
3.0 V
Ta
= +
25
°
C
CP : 6 mA mode
f VCO
=
2500 MHz
K V
=
50 MHz/V
fr = 200 kHz
f OSC
= 13 MHz
LPF
To VCO
• PLL Reference Leakage
• PLL Phase Noise
ATTEN 10 dB
RL 0 dBm
CENTER 2.500000 GHz
RBW 3.0 kHz
VBW 3.0 kHz
SPAN 1.000 MHz
SWP 280 ms
∆ MKR − 70.00 dB
200 kHz 10 dB/
∆
MKR
200 kHz
− 70.00 dB
∗
D
S
ATTEN 10 dB
RL 0 dBm
CENTER 2.50000000 GHz
RBW 30 Hz
VBW 30 Hz
SPAN 10.00 kHz
SWP 1.92 s
∆
MKR
−
69.01 dB
1.00 kHz 10 dB/
∗
∆
MKR
1.00 kHz
−
69.01 dB/Hz
D
S