Datasheet

REV. B–8–
ADF4252
FREQUENCY
0
–60
–2kHz –1kHz 1.7518GHz 1kHz 2kHz
–10
–50
–70
–90
–30
–40
–80
–20
–100
–102dBc/Hz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 20MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 10Hz
REFERENCE
LEVEL = – 4.2dBm
OUTPUT POWER (dB)
TPC 7. Phase Noise Plot, Lowest Noise Mode,
1.7518 GHz RF
OUT
, 20 MHz PFD Frequency,
200 kHz Channel Step Resolution
FREQUENCY
0
–60
–2kHz –1kHz 1.7518GHz 1kHz 2kHz
–10
–50
–70
–90
–30
–40
–80
–20
–100
–93.86dBc/Hz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 20MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 10Hz
REFERENCE
LEVEL = – 4.2dBm
OUTPUT POWER (dB)
TPC 8. Phase Noise Plot, Low Noise and Spur
Mode, 1.7518 GHz RF
OUT
, 20 MHz PFD Frequency,
200 kHz Channel Step Resolution
FREQUENCY
0
–60
–2kHz
OUTPUT POWER (dB)
–1kHz 1.7518GHz 1kHz 2kHz
–10
–50
–70
–90
–30
–40
–80
–20
–100
–89.52dBc/Hz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 20MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 10Hz
REFERENCE
LEVEL = – 4.2dBm
TPC 9. Phase Noise Plot, Lowest Spur Mode,
1.7518 GHz RF
OUT
, 20 MHz PFD Frequency,
200 kHz Channel Step Resolution
FREQUENCY
0
–60
OUTPUT POWER (dB)
–10
–50
–70
–90
–30
–40
–80
–20
–100
–53dBc@
100kHz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 20MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 1kHz
REFERENCE
LEVEL = – 4.2dBm
–400kHz –200kHz 1.7518GHz 200kHz 400kHz
TPC 10. Spurious Plot, Lowest Noise Mode,
1.7518 GHz RF
OUT
, 20 MHz PFD Frequency,
200 kHz Channel Step Resolution
FREQUENCY
0
–60
–400kHz
OUTPUT POWER (dB)
–200kHz 1.7518GHz 200kHz 400kHz
–10
–50
–70
–90
–30
–40
–80
–20
–100
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 20MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 1kHz
REFERENCE
LEVEL = – 4.2dBm
–63.2dBc@
100kHz
TPC 11. Spurious Plot, Low Noise and Spur Mode,
1.7518 GHz RF
OUT
, 20 MHz PFD Frequency, 200 kHz
Channel Step Resolution
FREQUENCY
0
–60
–400kHz
OUTPUT POWER (dB)
–200kHz 1.7518GHz 200kHz 400kHz
–10
–50
–70
–90
–30
–40
–80
–20
–100
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 20MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 1kHz
REFERENCE
LEVEL = – 4.2dBm
–72.33dBc@
100kHz
TPC 12. Spurious Plot, Lowest Spur Mode,
1.7518 GHz RF
OUT
, 20 MHz PFD Frequency,
200 kHz Channel Step Resolution