
ADF4360-8
Rev. A | Page 9 of 24
0
O
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–2kHz
–1kHz
160MHz
1kHz
2kHz
–109.4dBc/Hz
REFERENCE
LEVEL = 1dBm
V
DD
= 3.3V, V
VCO
= 3.3V
I
= 2.5mA
PFD FREQUENCY = 1MHz
LOOP BANDWIDTH = 100kHz
RES. BANDWIDTH = 30Hz
VIDEO BANDWIDTH = 30Hz
SWEEP = 1.9SECONDS
AVERAGES = 20
Figure 10. Close-In Phase Noise at 160 MHz (1 MHz Channel Spacing)
0
O
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–1.1MHz
–0.55MHz
160MHz
0.55MHz
1.1MHz
–76dBc
REFERENCE
LEVEL = 1dBm
V
DD
= 3.3V, V
VCO
= 3.3V
I
= 2.5mA
PFD FREQUENCY = 1MHz
LOOP BANDWIDTH = 100kHz
RES. BANDWIDTH = 1kHz
VIDEO BANDWIDTH = 1kHz
SWEEP = 4.2SECONDS
AVERAGES = 20
Figure 11. Reference Spurs at 160 MHz
(1 MHz Channel Spacing, 100 kHz Loop Bandwidth)
–150
–120
–130
–140
–70
–60
–90
–100
–110
–80
–40
–50
100
1k
10k
100k
1M
10M
FREQUENCY OFFSET (Hz)
O
0
Figure 12. Open-Loop VCO Phase Noise, L1, L2 = 18 nH
–150
–125
–130
–135
–140
–145
–120
–85
–90
–80
–95
–100
–105
–110
–115
–70
–75
100
1k
10k
100k
1M
10M
FREQUENCY OFFSET (Hz)
O
0
Figure 13. VCO Phase Noise, 400 MHz, 1 MHz PFD, 100 kHz Loop Bandwidth
0
O
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–2kHz
–1kHz
400MHz
1kHz
2kHz
–103.4dBc/Hz
REFERENCE
LEVEL = 0dBm
V
DD
= 3.3V, V
VCO
= 3.3V
I
= 2.5mA
PFD FREQUENCY = 1MHz
LOOP BANDWIDTH = 100kHz
RES. BANDWIDTH = 30Hz
VIDEO BANDWIDTH = 30Hz
SWEEP = 1.9SECONDS
AVERAGES = 20
Figure 14. Close-In Phase Noise at 400 MHz (1 MHz Channel Spacing)
0
O
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–1.1MHz
–0.55MHz
400MHz
0.55MHz
1.1MHz
–77dBc
REFERENCE
LEVEL = 0dBm
V
DD
= 3.3V, V
VCO
= 3.3V
I
= 2.5mA
PFD FREQUENCY = 1MHz
LOOP BANDWIDTH = 100kHz
RES. BANDWIDTH = 1kHz
VIDEO BANDWIDTH = 1kHz
SWEEP = 4.2SECONDS
AVERAGES = 20
Figure 15. Reference Spurs at 400 MHz
(1 MHz Channel Spacing, 100 kHz Loop Bandwidth)