ADF4150 AD [Analog Devices], ADF4150 Datasheet - Page 10

• Manufacturer Part Number: ADF4150
• Description: Fractional-N/Integer-N PLL Synthesizer
• Manufacturer: AD [Analog Devices]

ADF4150
Figure 11. RF Buffer Output Fractional-N Phase Noise and Spur Performance;
Figure 10. RF Output Phase Noise RF Dividers Used; Integer-N; Low Noise
Mode; VCOOUT = 1750 MHz, REF
Low Noise Mode; VCOOUT = 1750 MHz, REF
Loop Filter Bandwidth = 15 kHz, Channel Spacing = 200 kHz; FRAC = 1,
–100
–120
–140
–160
–180
–100
–120
–140
–160
–180
–60
–80
–60
–80
1k
1k
10k
10k
MOD = 5; Output Divider = 1
Bandwidth = 50 kHz
FREQUENCY (Hz)
FREQUENCY (Hz)
IN
100k
100k
= 100 MHz, PFD = 25 MHz, Loop Filter
IN
= 100 MHz, PFD = 25 MHz,
1M
1M
10M
10M
Rev. 0 | Page 10 of 28
Figure 12. RF Buffer Output Fractional-N Phase Noise and Spur Performance;
Figure 13. RF Buffer Output Fractional-N Phase Noise and Spur Performance;
Low Noise Mode; VCOOUT = 1750 MHz, REF
Low Noise Mode; VCOOUT = 1750 MHz, REF
Loop Filter Bandwidth = 15 kHz, Channel Spacing = 200 kHz; FRAC = 1,
Loop Filter Bandwidth = 15 kHz, Channel Spacing = 200 kHz. FRAC = 1,
–100
–120
–140
–160
–180
–100
–120
–140
–160
–180
–60
–80
–60
–80
1k
1k
10k
10k
MOD = 5; Output Divider = 2
MOD = 5. Output divider = 4
FREQUENCY (Hz)
FREQUENCY (Hz)
100k
100k
IN
IN
= 100 MHz, PFD = 25 MHz,
= 100 MHz, PFD = 25 MHz,
1M
1M
10M
10M