Datasheet

ADF4360-1 Data Sheet
Rev. C | Page 8 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
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0
1k 10M1M100k10k
FREQUENCY OFFSET (Hz)
4
3
2
1
OUTPUT POWER (dB)
Figure 4. Open Loop VCO Phase Noise
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–70
100 10M1M100k10k1000
FREQUENCY OFFSET (Hz)
OUTPUT POWER (dB)
Figure 5. VCO Phase Noise, 2250 MHz, 200 kHz PFD, 10 kHz Loop Bandwidth
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–150
–155
–140
–135
–130
–125
–120
–115
–110
–105
–90
–95
–100
–85
–80
–75
–70
100 10M1M100k10k1000
FREQUENCY OFFSET (Hz)
OUTPUT POWER (dB)
Figure 6. VCO Phase Noise, 1125 MHz,
Divide-by-2 Enabled, 200 kHz PFD, 10 kHz Loop Bandwidth
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OUTPUT POWER (dB)
–90
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0
–2kHz –1kHz 2250MHz 1kHz 2kHz
–83.0dBc/Hz
V
DD
= 3V, V
VCO
= 3V
I
CP
= 2.5mA
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 10kHz
RES. BANDWIDTH = 10Hz
VIDEO BANDWIDTH = 10Hz
SWEEP = 1.9 SECONDS
AVERAGES = 10
Figure 7. Close-In Phase Noise at 2250 MHz (200 kHz Channel Spacing)
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OUTPUT POWER (dB)
–90
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–70
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–40
–30
–20
–10
0
–200kHz –100kHz 2250MHz 100kHz 200kHz
–70.7dBc
V
DD
= 3V, V
VCO
= 3V
I
CP
= 2.5mA
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 10kHz
RES. BANDWIDTH = 1kHz
VIDEO BANDWIDTH = 1kHz
SWEEP = 1.3 SECONDS
AVERAGES = 1
Figure 8. Reference Spurs at 2250 MHz
(200 kHz Channel Spacing, 10 kHz Loop Bandwidth)
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OUTPUT POWER (dB)
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–1MHz –0.5MHz 2250MHz 0.5MHz 1MHz
–84.8dBc/Hz
V
DD
= 3V, V
VCO
= 3V
I
CP
= 2.5mA
PFD FREQUENCY = 1MHz
LOOP BANDWIDTH = 25kHz
RES. BANDWIDTH = 10kHz
VIDEO BANDWIDTH = 10kHz
SWEEP = 1.9 SECONDS
AVERAGES = 10
Figure 9. Reference Spurs at 2250 MHz
(1 MHz Channel Spacing, 25 kHz Loop Bandwidth)