ADF4360-3 Analog Devices, ADF4360-3 Datasheet - Page 8

• Manufacturer Part Number: ADF4360-3
• Description: Integrated Synthesizer and VCO
• Manufacturer: Analog Devices

ADF4360-3
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 6. VCO Phase Noise, 1800 MHz, 200 kHz PFD, 10 kHz Loop Bandwidth
–100
–110
–120
–130
–140
–150
–160
–170
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–105
–110
–115
–120
–125
–130
–135
–140
–145
–150
–100
–105
–110
–115
–120
–125
–130
–135
–140
–145
–150
–70
–75
–80
–85
–90
–95
–70
–75
–80
–85
–90
–95
0
Divide-by-2 Enabled 200 kHz PFD, 10 kHz Loop Bandwidth
1k
100
100
Figure 4. Open-Loop VCO Phase Noise
Figure 5. VCO Phase Noise, 900 MHz,
1k
1k
10k
1
FREQUENCY OFFSET (Hz)
FREQUENCY OFFSET (Hz)
FREQUENCY OFFSET (Hz)
10k
10k
100k
2
100k
100k
1M
1M
1M
3
4
10M
10M
10M
Rev. 0 | Page 8 of 24
Figure 7. Close-In Phase Noise at 1800 MHz (200 kHz Channel Spacing)
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
(200 kHz Channel Spacing, 10 kHz Loop Bandwidth)
(1 MHz Channel Spacing, 25 kHz Loop Bandwidth)
V
I
PFD FREQUENCY = 1MHz
LOOP BANDWIDTH = 25kHz
RES. BANDWIDTH = 30kHz
VIDEO BANDWIDTH = 30kHz
SWEEP = 50ms
AVERAGES = 100
V
I
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 10kHz
RES. BANDWIDTH = 30Hz
VIDEO BANDWIDTH = 30Hz
SWEEP = 1.9 SECONDS
AVERAGES = 10
V
I
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 10kHz
RES. BANDWIDTH = 3kHz
VIDEO BANDWIDTH = 3kHz
SWEEP = 140ms
AVERAGES = 100
CP
–200kHz
CP
CP
DD
–1MHz
DD
–2kHz
DD
= 2.5mA
= 2.5mA
= 2.5mA
= +3V, V
= 3V, V
= +3V, V
Figure 8. Reference Spurs at 1800 MHz
Figure 9. Reference Spurs at 1800 MHz
VCO
VCO
VCO
–100kHz
–0.5MHz
–1kHz
= +3V
= +3V
= +3V
1800MHz
1800MHz
1800MHz
100kHz
0.5MHz
1kHz
–86.0dBc/Hz
–73.8dBc/Hz
–72.3dBc
200kHz
1MHz
2kHz