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ADF4378 Datasheet(PDF) 4 Page - Analog Devices |
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ADF4378 Datasheet(HTML) 4 Page - Analog Devices |
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4 / 84 page  Data Sheet ADF4378 SPECIFICATIONS analog.com Rev. A | 4 of 84 3.3 V Supply Group 1 pins voltage (V3.3V_1) = 3.15 V to 3.45 V, Supply Group 2 pins voltage (V3.3V_2) = 3.15 V to 3.45 V, VV5_VCO = VV5_CP = VV5_CAL = 4.75 V to 5.25 V, all voltages are with respect to GND, TA = −40°C to +105°C, operating temperature range, unless otherwise noted. Table 1. Specifications Parameter Symbol Min Typ Max Unit Test Conditions/Comments REFERENCE INPUTS (REFP, REFN) Input Frequency fREF 10 1000 MHz Non-SYSREF applications 10 500 MHz SYSREF applications Input Signal Level VREF 0.5 2.6 V p-p See Figure 65 Minimum Input Slew Rate 100 V/μs Input Duty Cycle 50 % Self-Bias Voltage 1.85 V Input Resistance 3 kΩ Differential Input Capacitance 1 pF Differential Input Current −2 μA REFERENCE PEAK DETECTOR Input Frequency 10 1000 MHz Minimum Input Signal Detected (REF_OK Bit = 1) 200 mV p-p fREF = 100 MHz, single-ended sine wave Maximum Input Signal Not Detected (REF_OK Bit = 0) 160 mV p-p fREF = 100 MHz, single-ended sine wave REFERENCE DIVIDER R 1 63 Non-SYSREF applications, all integers included 1 1 SYSREF applications REFERENCE DOUBLER Input Frequency 10 250 MHz EN_RDBLR = 1 PHASE/FREQUENCY DETECTOR (PFD) Input Frequency fPFD 3 500 MHz SYSREF INPUTS (SR_INP, SR_INN) Input Frequency fSR_IN DC 125 MHz fREF ÷ fSR_IN must be an even integer Input Signal Level VSR_IN 0.4 2.6 V p-p SR_SEL = 0, fSR_IN = 10 MHz 0.4 2.6 V p-p SER_SEL = 1,fSR_IN = 10 MHz Self-Bias Voltage (AC-Coupled) VCM 1.85 V SR_SEL = 0, fSR_IN = 10 MHz 1.3 V SR_SEL = 1, fSR_IN = 10 MHz Input Common Mode Voltage Range (DC-Coupled) VCM 1.4 3.1 V SR_SEL = 0, fSR_IN = 10 MHz, VSR_IN = 0.8 V p-p 0.5 1.6 V SR_SEL = 1, fSR_IN = 10 MHz, VSR_IN = 0.8 V p-p Input Resistance 3 kΩ Differential Input Capacitance 1 pF Differential Input Current −2 μA SYSREF to Reference Setup Time 400 ps VCM set to self-bias voltage, V p-p = 0.8 V p-p SYSREF to Reference Hold Time 600 ps VCM set to self-bias voltage, V p-p = 0.8 V p-p SYSREF Monitor Window Around Metastability State ±190 ps CHARGE PUMP (CP) Output Current Range ICP 0.79 to 11.1 mA Set by CP_I bit fields Output Current Source/Sink Accuracy ±2 % All CP_I bit field settings, VCP = VV5_CP/2 Output Current Source/Sink Matching ±2 % All CP_I bit field settings, VCP = VV5_CP/2 Output Current vs. Output Voltage Sensitivity 0.2 %/V VCP1 Output Current vs. Temperature 280 ppm/°C VCP = VV5_CP/2 |
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