MB15E06 Datasheet, PDF (18/23 Pages) Fujitsu Component Limited. – Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz Prescaler

MB15E06
s REFERENCE INFORMATION
Typical plots measured with the
test circuit are shown below.
Each plot shows lock up time,
phase noise and reference
leakage.
S.G
Spectrum
Analyzer
Test Circuit
OSCin
Do
LPF
fin
VCO
• fvco = 1835 MHz
• Kv = 87 MHz/v
• fr = 200 kHz
• fosc = 13 MHz
• LPF :
15 kΩ
3000 pF
910 Ω
0.03 µF
400 pF
PLL Lock Up Time = 500 µs
(1797.6 MHz → 1872.4 MHz, within ± 1kHz)
∆MKr x : 500.01844 µs
y : −74.8009 MHz
38.00500
MHz
2.000
kHz/div
29.99500
MHz
10.1339 µs
∆MKr x : 500.01844 µs
y : −74.8009 MHz
250.0000
MHz
1.9903829 ms
50.00000
MHz/div
0
Hz
10.1339 µs
1.9903829 ms
18
PLL Phase Noise
@ within loop band = 69.4 dBc/H
REF 0.0 dBm ATT 10 dB
10 dB/
RBW
300 Hz
VBW
300 Hz
SPAN 50.0 kHz CENTER 1.8350000 GHz
PLL Reference Leakage
@ 200 kHz offset = 74.6 dBc
REF 0.0 dBm ATT 10 dB
10 dB/
RBW
10 kHz
VBW
10 kHz
SPAN 1.00 MHz CENTER 1.83500 GHz