adf4153 Analog Devices, Inc., adf4153 Datasheet - Page 7
adf4153
Manufacturer Part Number
adf4153
Description
Fractional-n Frequency Synthesizer
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADF4153.pdf
(24 pages)
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TYPICAL PERFORMANCE CHARACTERISTICS
Loop bandwidth = 20 kHz, reference = 250 MHz, VCO = Vari-L VCO190-1750T, evaluation board = EVAL-ADF4153EB1,
measurements taken on Agilent E5500 phase noise system.
Figure 6. Single-Sideband Phase Noise Plot (Low Noise and Spur Mode)
–100
–120
–130
–140
–150
–160
–170
Figure 5. Single-Sideband Phase Noise Plot (Lowest Noise Mode)
–100
–120
–130
–140
–150
–160
–170
–100
–120
–130
–140
–150
–160
–170
–110
–110
–110
–30
–40
–50
–60
–70
–80
–90
–30
–40
–50
–60
–70
–80
–90
–30
–40
–50
–60
–70
–80
–90
Figure 7. Single-Sideband Phase Noise Plot (Low Spur Mode)
1k
1k
1k
20kHz LOOP BW, LOW NOISE MODE
RF = 1.7202MHz, PFD = 25MHz, N = 68,
FRAC = 101, MOD = 125, I
INTEGRATED PHASE ERROR = 0.23° RMS
SIRENZA 1750T VCO
20kHz LOOP BW, LOW NOISE MODE
RF = 1.7202MHz, PFD = 25MHz, N = 68,
FRAC = 101, MOD = 125, I
INTEGRATED PHASE ERROR = 0.33° RMS
SIRENZA 1750T VCO
20kHz LOOP BW, LOW NOISE MODE
RF = 1.7202MHz, PFD = 25MHz, N = 68,
FRAC = 101, MOD = 125, I
INTEGRATED PHASE ERROR = 0.36° RMS
SIRENZA 1750T VCO
10k
10k
10k
FREQUENCY
FREQUENCY
FREQUENCY
100k
100k
100k
CP
CP
CP
= 625μA, DSB
= 625μA, DSB
= 625μA, DSB
1M
1M
1M
(Hz)
(Hz)
(Hz)
10M
10M
10M
100M
100M
100M
Rev. B | Page 7 of 24
–100
–102
–104
–10
–15
–20
–25
–30
–35
–92
–1
–2
–3
–4
–5
–6
–90
–94
–96
–98
–5
6
5
4
3
2
1
0
5
0
0
–60
0
Figure 9. Charge Pump Output Characteristics
0.5
–40
Figure 10. Phase Noise vs. Temperature
1
1.0
Figure 8. RF Input Sensitivity
–20
1.5
FREQUENCY (GHz)
TEMPERATURE(°C)
0
2
2.0
V
CP
(V)
20
2.5
3
P = 4/5
40
3.0
P = 8/9
3.5
60
4
ADF4153
4.0
80
4.5
5
100