Datasheet

Data Sheet ADF4360-7
Rev. D | Page 9 of 28
–
150
–
120
–130
–140
–
70
–60
–
90
–100
–110
–80
–
40
–
50
100
1k
10k
100k
1M
10M
FREQUENCY OFFSET (Hz)
OUTPUT POWER (dB)
04441-010
Figure 10. Open-Loop VCO Phase Noise, L1 and L2 = 1.0 nH
–
150
–125
–
130
–120
–135
–140
–145
–85
–80
–95
–
100
–
105
–
110
–115
–
90
–
70
–75
100
1k 10k 100k
1M 10M
FREQUENCY OFFSET (Hz)
OUTPUT POWER (dB)
04441-011
Figure 11. VCO Phase Noise, 1250 MHz, 200 kHz PFD, 10 kHz Loop Bandwidth
–150
–
125
–130
–
120
–135
–140
–145
–
85
–80
–95
–100
–105
–110
–115
–90
–70
–75
100 1k 10k 100k
1M 10M
FREQUENCY OFFSET (Hz)
OUTPUT POWER (dB)
04441-012
Figure 12. VCO Phase Noise, 625 MHz,
Divide-by-2 Enabled 200 kHz PFD, 10 kHz Loop Bandwidth
04441-013
OUTPUT POWER (dB)
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–2kHz –1kHz 1.25GHz 1kHz 2kHz
–87.5dBc/Hz
REFERENCE
LEVEL = –3.5dBm
V
DD
= 3.3V, V
VCO
= 3.3V
I
CP
= 2.5mA
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 10kHz
RES. BANDWIDTH = 30Hz
VIDEO BANDWIDTH = 30Hz
SWEEP = 1.9 SECONDS
AVERAGES = 20
Figure 13. Close-In Phase Noise at 1250 MHz (200 kHz Channel Spacing)
04441-014
OUTPUT POWER (dB)
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–0.25MHz –0.1MHz 1250MHz 0.1MHz 0.25MHz
–79dBc
REFERENCE
LEVEL = –3dBm
V
DD
= 3.3V, V
VCO
= 3.3V
I
CP
= 2.5mA
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 10kHz
RES. BANDWIDTH = 1kHz
VIDEO BANDWIDTH = 1kHz
AVERAGES = 20
Figure 14. Reference Spurs at 1250 MHz
(200 kHz Channel Spacing, 10 kHz Loop Bandwidth)
04441-015
OUTPUT POWER (dB)
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–1.1MHz –0.55MHz 1250MHz 0.55MHz 1.1MHz
–79dBc
REFERENCE
LEVEL =
–3dBm
V
DD
= 3.3V, V
VCO
= 3.3V
I
CP
= 2.5mA
PFD FREQUENCY = 1MHz
LOOP BANDWIDTH = 25kHz
RES. BANDWIDTH = 1kHz
VIDEO BANDWIDTH = 1kHz
SWEEP = 4.2 SECONDS
AVERAGES = 20
Figure 15. Reference Spurs at 1250 MHz
(1 MHz Channel Spacing, 25 kHz Loop Bandwidth)