Datasheet

REV. B
Typical Performance Characteristics–ADF4252
–7–
TPC plots 1 to 12 attained using EVAL-ADF4252EB1;
measurements from HP8562E spectrum analyzer.
FREQUENCY
0
–60
–2kHz –1kHz 1.7518GHz 1kHz 2kHz
–10
–50
–70
–90
–30
–40
–80
–20
–100
– 99.19dBc/Hz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 10MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 10Hz
REFERENCE
LEVEL = – 4.2dBm
OUTPUT POWER (dB)
TPC 1. Phase Noise Plot, Lowest Noise Mode,
1.7518 GHz RF
OUT
, 10 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
–90.36dBc/Hz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 10MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 10Hz
REFERENCE
LEVEL = – 4.2dBm
OUTPUT POWER (dB)
TPC 2. Phase Noise Plot, Low Noise and Spur
Mode, 1.7518 GHz RF
OUT
, 10 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
–85.86dBc/Hz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 10MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 10Hz
REFERENCE
LEVEL = – 4.2dBm
OUTPUT POWER (dB)
TPC 3. Phase Noise Plot, Lowest Spur Mode,
1.7518 GHz RF
OUT
, 10 MHz PFD Frequency,
200 kHz Channel Step Resolution
FREQUENCY
0
–60
–10
–50
–70
–90
–30
–40
–80
–20
–100
–50dBc@
100kHz
V
DD
= 3V, V
P
= 5V
I
CP
= 1.875mA
PFD FREQUENCY = 10MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 1kHz
REFERENCE
LEVEL = – 4.2dBm
–400kHz –200kHz 1.7518GHz 200kHz 400kHz
OUTPUT POWER (dB)
TPC 4. Spurious Plot, Lowest Noise Mode,
1.7518 GHz RF
OUT
, 10 MHz PFD Frequency,
200 kHz Channel Step Resolution
FREQUENCY
0
–60
–400kHz –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 = 10MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 1kHz
REFERENCE
LEVEL = – 4.2dBm
–51dBc@
100kHz
OUTPUT POWER (dB)
TPC 5. Spurious Plot, Low Noise and Spur Mode,
1.7518 GHz RF
OUT
, 10 MHz PFD Frequency,
200 kHz Channel Step Resolution
FREQUENCY
0
–60
–400kHz –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 = 10MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
FRACTION = 59/100
RBW = 1kHz
REFERENCE
LEVEL = – 4.2dBm
–72dBc@
100kHz
OUTPUT POWER (dB)
TPC 6. Spurious Plot, Lowest Spur Mode,
1.7518 GHz RF
OUT
, 10 MHz PFD Frequency,
200 kHz Channel Step Resolution