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AD9520-5BCPZ-REEL7 Datasheet(PDF) 7 Page - Analog Devices |
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AD9520-5BCPZ-REEL7 Datasheet(HTML) 7 Page - Analog Devices |
7 / 80 page AD9520-5 Rev. 0 | Page 7 of 80 CLOCK INPUTS Table 3. Parameter Min Typ Max Unit Test Conditions/Comments CLOCK INPUTS (CLK, CLK) Differential input Input Frequency 01 2.4 GHz High frequency distribution (VCO divider) 01 1.6 GHz Distribution only (VCO divider bypassed); this is the frequency range supported by the channel divider Input Sensitivity, Differential 150 mV p-p Measured at 2.4 GHz; jitter performance is improved with slew rates > 1 V/ns Input Level, Differential 2 V p-p Larger voltage swings can turn on the protection diodes and can degrade jitter performance Input Common-Mode Voltage, VCM 1.3 1.57 1.8 V Self-biased; enables ac coupling Input Common-Mode Range, VCMR 1.3 1.8 V With 200 mV p-p signal applied; dc-coupled Input Sensitivity, Single-Ended 150 mV p-p CLK ac-coupled; CLK ac-bypassed to RF ground Input Resistance 3.9 4.7 5.7 kΩ Self-biased Input Capacitance 2 pF 1 Below about 1 MHz, the input should be dc-coupled. Care should be taken to match VCM. CLOCK OUTPUTS Table 4. Parameter Min Typ Max Unit Test Conditions/Comments LVPECL CLOCK OUTPUTS Termination = 50 Ω to VS_DRV − 2 V OUT0, OUT1, OUT2, OUT3, OUT4, OUT5, OUT6, OUT7, OUT8, OUT9, OUT10, OUT11 Differential (OUT, OUT) Output Frequency, Maximum 2400 MHz Using direct to output; see Figure 17 (higher frequencies are possible, but amplitude will not meet the VOD specification); the maximum output frequency is limited by the maximum frequency at the CLK inputs Output High Voltage, VOH VS_DRV − 1.07 VS_DRV − 0.96 VS_DRV − 0.84 V Output Low Voltage, VOL VS_DRV − 1.95 VS_DRV − 1.79 VS_DRV − 1.64 V Output Differential Voltage, VOD 660 820 950 mV CMOS CLOCK OUTPUTS OUT0A, OUT0B, OUT1A, OUT1B, OUT2A, OUT2B, OUT3A, OUT3B, OUT4A, OUT4B, OUT5A, OUT5B, OUT6A, OUT6B, OUT7A, OUT7B, OUT8A, OUT8B, OUT9A, OUT9B, OUT10A, OUT10B, OUT11A, OUT11B Single-ended; termination = 10 pF Output Frequency 250 MHz See Figure 18 Output Voltage High, VOH VS − 0.1 V @ 1 mA load, VS_DRV = 3.3 V/2.5 V Output Voltage Low, VOL 0.1 V @ 1 mA load, VS_DRV = 3.3 V/2.5 V Output Voltage High, VOH 2.7 V @ 10 mA load, VS_DRV = 3.3 V Output Voltage Low, VOL 0.5 V @ 10 mA load, VS_DRV = 3.3 V Output Voltage High, VOH 1.8 V @ 10 mA load, VS_DRV = 2.5 V Output Voltage Low, VOL 0.6 V @ 10 mA load, VS_DRV = 2.5 V |
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