Datasheet

ADF4153 Data Sheet
Rev. F | Page 8 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
Loop bandwidth = 20 kHz, reference = 250 MHz, VCO = Sirenza 1750T VCO, evaluation board = EV-ADF4153SD1Z, measurements taken on
the Agilent E5500 phase noise system.
PHASE NOISE (dBc/Hz)
–30
–60
–80
–140
–130
–120
–110
–150
–160
–170
–90
–100
–70
–50
–40
20kHz LOOP BW, LOWEST NOISE MODE
RF = 1.7202MHz, PFD = 25MHz, N = 68,
FRAC = 101, MOD = 125, I
CP
= 625µA, DSB
INTEGR
ATED PHASE ERROR = 0.23° RMS
SIRENZA 1750T VCO
1k 10k 1M 10M 100M
100k
03685-004
FREQUENCY (Hz)
Figure 5. Single-Sideband Phase Noise Plot (Lowest Noise Mode)
PHASE NOISE (dBc/Hz)
–30
–60
–80
–140
–130
–120
–110
–150
–160
–170
–90
–100
–70
–50
–40
1k 10k 1M
10M 100M
100k
03685-005
FREQUENCY (Hz)
20kHz LOOP B
W, LOW NOISEAND SPUR MODE
RF = 1.7202MHz, PFD = 25MHz, N = 68,
FRAC = 101, MOD = 125, I
CP
= 625µA, DSB
INTEGRATED PHASE ERROR = 0.33° RMS
SIRENZA 1750T VCO
Figure 6. Single-Sideband Phase Noise Plot (Low Noise and Spur Mode)
PHASE NOISE (dBc/Hz)
–30
–60
–80
–140
–130
–120
–110
–150
–160
–170
–90
–100
–70
–50
–40
1k 10k
1M 10M 100M
100k
03685-006
FREQUENCY (Hz)
20kHz LOOP BW, LOW SPUR MODE
RF = 1.7202MHz, PFD = 25MHz, N = 68,
FRAC = 101, MOD = 125, I
CP
= 625µA, DSB
INTEGRATED PHASE ERROR = 0.36° RMS
SIRENZA 1750T VCO
Figure 7. Single-Sideband Phase Noise Plot (Low Spur Mode)
FREQUENC
Y (GHz)
AMPLITUDE (dBm)
5
0
–5
–10
–20
–15
–25
–30
–35
0 0.5 1.0 1.5
4.0
3.53.02.5
2.0 4.5
P = 4/5
P
= 8/9
03685-01
1
Figure 8. RF Input Sensitivity
V
C
P
(V)
6
0
–6
I
CP
(mA)
4
2
–2
–4
–5
–3
–1
1
3
5
0
1 2 3 4
5
03685-012
Figure 9. Charge Pump Output Characteristics
TEMPERATURE (°C)
–90
–94
–104
–60 100–40
PHASE NOISE (dBc/Hz)
–20 0 20 40 60
–96
–98
–92
–102
–100
80
03685-014
Figure 10. Phase Noise vs. Temperature