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ADF4252BCPZ-R7 Datasheet(PDF) 8 Page - Analog Devices |
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ADF4252BCPZ-R7 Datasheet(HTML) 8 Page - Analog Devices |
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8 / 30 page  ADF4252 Data Sheet Rev. E | Page 8 of 30 TYPICAL PERFORMANCE CHARACTERISTICS Figure 4 to Figure 15 attained using the EVAL-ADF4252EB1 evaluation board; 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 VDD = 3V, VP = 5V ICP = 1.875mA PFD FREQUENCY = 10MHz CHANNEL STEP = 200kHz LOOP BANDWIDTH = 20kHz FRACTION = 59/100 RBW = 10Hz REFERENCE LEVEL = – 4.2dBm Figure 4. Phase Noise Plot, Lowest Noise Mode, 1.7518 GHz RFOUT, 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 VDD = 3V, VP = 5V ICP = 1.875mA PFD FREQUENCY = 10MHz CHANNEL STEP = 200kHz LOOP BANDWIDTH = 20kHz FRACTION = 59/100 RBW = 10Hz REFERENCE LEVEL = – 4.2dBm Figure 5. Phase Noise Plot, Low Noise and Spur Mode, 1.7518 GHz RFOUT, 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 VDD = 3V, VP = 5V ICP = 1.875mA PFD FREQUENCY = 10MHz CHANNEL STEP = 200kHz LOOP BANDWIDTH = 20kHz FRACTION = 59/100 RBW = 10Hz REFERENCE LEVEL = – 4.2dBm Figure 6. Phase Noise Plot, Lowest Spur Mode, 1.7518 GHz RFOUT, 10 MHz PFD Frequency, 200 kHz Channel Step Resolution FREQUENCY 0 –60 –10 –50 –70 –90 –30 –40 –80 –20 –100 –50dBc@ 100kHz VDD = 3V, VP = 5V ICP = 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 Figure 7. Spurious Plot, Lowest Noise Mode, 1.7518 GHz RFOUT, 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 VDD = 3V, VP = 5V ICP = 1.875mA PFD FREQUENCY = 10MHz CHANNEL STEP = 200kHz LOOP BANDWIDTH = 20kHz FRACTION = 59/100 RBW = 1kHz REFERENCE LEVEL = – 4.2dBm –51dBc@ 100kHz Figure 8. Spurious Plot, Low Noise and Spur Mode, 1.7518 GHz RFOUT, 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 VDD = 3V, VP = 5V ICP = 1.875mA PFD FREQUENCY = 10MHz CHANNEL STEP = 200kHz LOOP BANDWIDTH = 20kHz FRACTION = 59/100 RBW = 1kHz REFERENCE LEVEL = – 4.2dBm –72dBc@ 100kHz Figure 9. Spurious Plot, Lowest Spur Mode, 1.7518 GHz RFOUT, 10 MHz PFD Frequency, 200 kHz Channel Step Resolution |
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