MB15E05 Fujitsu Media Devices, MB15E05 Datasheet - Page 17

• Manufacturer Part Number: MB15E05
• Description: ASSP Single Serial Input PLL Frequency Synthesizer On-Chip 2.0GHz Prescaler
• Manufacturer: Fujitsu Media Devices

REFERENCE INFORMATION
Typical plots measured with the
test circuit are shown below.
Each plot shows lock up time,
phase noise and reference
leakage.
38.00500
MHz
2.000
kHz/div
29.99500
MHz
250.0000
MHz
50.00000
MHz/div
0
Hz
MKr x : 500.01844 s
MKr x : 500.01844 s
(1797.6 MHz
y : –74.8009 MHz
y : –74.8009 MHz
18.1339 s
18.1339 s
PLL Lock Up Time = 500 s
1872.4 MHz, within
Spectrum
Analyzer
1.9903829 ms
1.9903829 ms
S.G
1kHz)
OSCin
fin
Do
10dB/
RBW
300 Hz
VBW
300 Hz
10dB/
RBW
10 kHz
VBW
10 kHz
REF
REF
Test Circuit
VCO
LPF
0.0 dBm
0.0 dBm
@ within loop band = 69.4 dBc/Hz
SPAN 50.0 kHz CENTER 1.8350000 GH z
SPAN 1.00 MHz CENTER 1.8350000 GHz
@ 200 kHz offset = 74.6 dBc
PLL Reference Leakage
ATT 10 dB
ATT 10 dB
PLL Phase Noise
3000 pF
fvco = 1835 MHz
Kv = 87 MHz/v
fr = 200 kHz
fosc = 13 MHz
LPF:
0.03 F
910
MB15E05
15 k
400 pF
17