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AD9540PCB 数据表(PDF) 5 Page - Analog Devices |
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AD9540PCB 数据表(HTML) 5 Page - Analog Devices |
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5 / 32 page ![]() AD9540 Rev. 0 | Page 5 of 32 Parameter Min Typ Max Unit Test Conditions/Comments FIN = 1966.08 MHz, FOUT = 491.52 MHz RF Divider R = 4 @ 10 Hz 105 dBc/Hz @ 100 Hz 112 dBc/Hz @ 1 kHz 122 dBc/Hz @ 10 kHz 130 dBc/Hz @ 100 kHz 141 dBc/Hz @ 1 MHz 144 dBc/Hz >3 MHz 146 dBc/Hz FIN = 2488 MHz, FOUT = 622 MHz RF Divider R = 4 @ 10 Hz 100 dBc/Hz @ 100 Hz 108 dBc/Hz @ 1 kHz 115 dBc/Hz @ 10 kHz 125 dBc/Hz @ 100 kHz 135 dBc/Hz @ 1 MHz 140 dBc/Hz ≥3 MHz 142 dBc/Hz PHASE FREQUENCY DETECTOR/CHARGE PUMP REFIN Input Input Frequency2 ÷M Set to Divide by at Least 4 655 MHz ÷M Bypassed 200 MHz Input Voltage Levels 200 450 600 mV p-p Input Capacitance 10 pF Input Resistance 1500 Ω CLK2 Input Input Frequency ÷N Set to Divide by at Least 4 655 MHz ÷N Bypassed 200 MHz Input Voltage Levels 200 450 600 mV p-p Input Capacitance 10 pF Input Resistance 1500 Ω Charge Pump Source/Sink Maximum Current 4 mA Charge Pump Source/Sink Accuracy 5 % Charge Pump Source/Sink Matching 2 % Charge Pump Output Compliance Range3 0.5 CPVDD − 0.5 V STATUS Drive Strength 2 mA PHASE FREQUENCY DETECTOR NOISE FLOOR @ 50 kHz PFD Frequency 148 dBc/Hz @ 2 MHz PFD Frequency 133 dBc/Hz @ 100 MHz PFD Frequency 116 dBc/Hz @ 200 MHz PFD Frequency 113 dBc/Hz RF DIVIDER (CLK1 ) INPUT SECTION (÷R) RF Divider Input Range 1 2700 MHz DDS SYSCLK not to exceed 400 MSPS Input Capacitance (DC) 3 pF Input Impedance (DC) 1500 Ω Input Duty Cycle 42 50 58 % Input Power/Sensitivity −10 +4 dBm Single-ended, into a 50 Ω load4 Input Voltage Level 200 1000 mV p-p |
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