ADF4251 Dual Fractional-N/Interger-N Frequency ... - Analog Devices
ADF4251 Dual Fractional-N/Interger-N Frequency ... - Analog Devices
ADF4251 Dual Fractional-N/Interger-N Frequency ... - Analog Devices
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Typical Performance Characteristics–<strong>ADF4251</strong><br />
OUTPUT POWER – dB<br />
0<br />
–10<br />
–20<br />
–30<br />
–40<br />
–50<br />
–60<br />
–70<br />
V DD = 3V, V P = 5V<br />
I CP = 1.875mA<br />
PFD FREQUENCY = 10MHz<br />
CHANNEL STEP = 200kHz<br />
LOOP BANDWIDTH = 20kHz<br />
FRACTION = 59/100<br />
RBW = 10Hz<br />
REFERENCE<br />
LEVEL = – 4.2dBm<br />
OUTPUT POWER – dB<br />
0<br />
–10<br />
–20<br />
–30<br />
–40<br />
–50<br />
–60<br />
–70<br />
V DD = 3V, V P = 5V<br />
I CP = 1.875mA<br />
PFD FREQUENCY = 10MHz<br />
CHANNEL STEP = 200kHz<br />
LOOP BANDWIDTH = 20kHz<br />
FRACTION = 59/100<br />
RBW = 1kHz<br />
–50dBc@<br />
100kHz<br />
REFERENCE<br />
LEVEL = – 4.2dBm<br />
–80<br />
–99.19dBc/Hz<br />
–80<br />
–90<br />
–90<br />
–100<br />
–2kHz<br />
–1kHz 1.7518GHz 1kHz 2kHz<br />
FREQUENCY<br />
–100<br />
–400kHz –200kHz 1.7518GHz 200kHz 400kHz<br />
FREQUENCY<br />
TPC 1. Phase Noise Plot, Lowest Noise Mode,<br />
1.7518 GHz RF OUT , 10 MHz PFD <strong>Frequency</strong>,<br />
200 kHz Channel Step Resolution<br />
TPC 4. Spurious Plot, Lowest Noise Mode,<br />
1.7518 GHz RF OUT , 10 MHz PFD <strong>Frequency</strong>,<br />
200 kHz Channel Step Resolution<br />
OUTPUT POWER – dB<br />
0<br />
–10<br />
–20<br />
–30<br />
–40<br />
–50<br />
–60<br />
–70<br />
V DD = 3V, V P = 5V<br />
I CP = 1.875mA<br />
PFD FREQUENCY = 10MHz<br />
CHANNEL STEP = 200kHz<br />
LOOP BANDWIDTH = 20kHz<br />
FRACTION = 59/100<br />
RBW = 10Hz<br />
REFERENCE<br />
LEVEL = – 4.2dBm<br />
–90.36dBc/Hz<br />
OUTPUT POWER – dB<br />
0<br />
–10<br />
–20<br />
–30<br />
–40<br />
–50<br />
–60<br />
–70<br />
V DD = 3V, V P = 5V<br />
I CP = 1.875mA<br />
PFD FREQUENCY = 10MHz<br />
CHANNEL STEP = 200kHz<br />
LOOP BANDWIDTH = 20kHz<br />
FRACTION = 59/100<br />
RBW = 1kHz<br />
–51dBc@<br />
100kHz<br />
REFERENCE<br />
LEVEL = – 4.2dBm<br />
–80<br />
–80<br />
–90<br />
–90<br />
–100<br />
–2kHz<br />
–1kHz 1.7518GHz 1kHz 2kHz<br />
FREQUENCY<br />
–100<br />
–400kHz<br />
–200kHz 1.7518GHz 200kHz 400kHz<br />
FREQUENCY<br />
TPC 2. Phase Noise Plot, Low Noise and Spur<br />
Mode, 1.7518 GHz RF OUT , 10 MHz PFD <strong>Frequency</strong>,<br />
200 kHz Channel Step Resolution<br />
TPC 5. Spurious Plot, Low Noise and Spur Mode,<br />
1.7518 GHz RF OUT , 10 MHz PFD <strong>Frequency</strong>,<br />
200 kHz Channel Step Resolution<br />
OUTPUT POWER – dB<br />
0<br />
–10<br />
–20<br />
–30<br />
–40<br />
–50<br />
–60<br />
–70<br />
V DD = 3V, V P = 5V<br />
I CP = 1.875mA<br />
PFD FREQUENCY = 10MHz<br />
CHANNEL STEP = 200kHz<br />
LOOP BANDWIDTH = 20kHz<br />
FRACTION = 59/100<br />
RBW = 10Hz<br />
REFERENCE<br />
LEVEL = – 4.2dBm<br />
–85.86dBc/Hz<br />
OUTPUT POWER – dB<br />
0<br />
–10<br />
–20<br />
–30<br />
–40<br />
–50<br />
–60<br />
–70<br />
V DD = 3V, V P = 5V<br />
I CP = 1.875mA<br />
PFD FREQUENCY = 10MHz<br />
CHANNEL STEP = 200kHz<br />
LOOP BANDWIDTH = 20kHz<br />
FRACTION = 59/100<br />
RBW = 1kHz<br />
–72dBc@<br />
100kHz<br />
REFERENCE<br />
LEVEL = – 4.2dBm<br />
–80<br />
–80<br />
–90<br />
–90<br />
–100<br />
–2kHz<br />
–1kHz 1.7518GHz 1kHz 2kHz<br />
FREQUENCY<br />
–100<br />
–400kHz<br />
–200kHz 1.7518GHz 200kHz 400kHz<br />
FREQUENCY<br />
TPC 3. Phase Noise Plot, Lowest Spur Mode,<br />
1.7518 GHz RF OUT , 10 MHz PFD <strong>Frequency</strong>,<br />
200 kHz Channel Step Resolution<br />
TPC 6. Spurious Plot, Lowest Spur Mode,<br />
1.7518 GHz RF OUT , 10 MHz PFD <strong>Frequency</strong>,<br />
200 kHz Channel Step Resolution<br />
TPCs 1–12 attained using EVAL-ADF4252EB1 Evaluation Board; measurements from HP8562E spectrum analyzer.<br />
REV. 0<br />
–7–
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