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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC6907 датащи(PDF) 4 Page - Analog Devices |
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LTC6907 датащи(HTML) 4 Page - Analog Devices |
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4 / 34 page  LTC6992-1/LTC6992-2/ LTC6992-3/LTC6992-4 4 Rev. D For more information www.analog.com The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 2.25V to 5.5V, VMOD = 0V to VSET, DIVCODE = 0 to 15 (NDIV = 1 to 16,384), RSET = 50k to 800k, RLOAD = 5k, CLOAD = 5pF unless otherwise noted. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Oscillation Frequency fOUT Output Frequency 3.81 1000000 Hz ∆fOUT Frequency Accuracy (Note 4) 3.81Hz ≤ fOUT ≤ 1MHz l ±0.8 ±1.7 ±2.4 % % ∆fOUT/∆T Frequency Drift Over Temperature l ±0.005 %/°C ∆fOUT/∆V+ Frequency Drift Over Supply V+ = 4.5V to 5.5V V+ = 2.25V to 4.5V l l 0.25 0.08 0.65 0.18 %/V %/V Long-Term Frequency Stability (Note 10) 90 ppm/√kHr Period Jitter (Note 9) NDIV = 1 1.2 %P-P NDIV = 4 0.4 0.07 %P-P %RMS NDIV = 16 0.15 0.022 %P-P %RMS Pulse Width Modulation ∆D PWM Duty Cycle Accuracy VMOD = 0.2 • VSET to 0.8 • VSET VMOD = 0.2 • VSET to 0.8 • VSET VMOD < 0.2 • VSET or VMOD > 0.8 • VSET l l ±3.0 ±3.7 ±4.5 ±4.9 % % % DMAX Maximum Duty Cycle Limit LTC6992-1/LTC6992-4, POL = 0, VMOD = 1V l 100 % LTC6992-2/LTC6992-3, POL = 0, VMOD = 1V l 90.5 95 99 % DMIN Minimum Duty Cycle Limit LTC6992-1/LTC6992-3, POL = 0, VMOD = 0V l 0 % LTC6992-2/LTC6992-4, POL = 0, VMOD = 0V l 1 5 9.5 % tS,PWM Duty Cycle Settling Time (Note 6) tMASTER = tOUT/NDIV 8•tMASTER µs Power Supply V+ Operating Supply Voltage Range l 2.25 5.5 V Power-On Reset Voltage l 1.95 V IS Supply Current RL = ∞, RSET = 50k, NDIV = 1 V+ = 5.5V l 365 450 µA V+ = 2.25V l 225 285 µA RL = ∞, RSET = 50k, NDIV = 4 V+ = 5.5V l 350 420 µA V+ = 2.25V l 225 280 µA RL = ∞, RSET = 50k, NDIV ≥ 16 V+ = 5.5V l 325 390 µA V+ = 2.25V l 215 265 µA RL = ∞, RSET = 800k, NDIV = 1 to 16,384 V+ = 5.5V l 120 170 µA V+ = 2.25V l 105 150 µA |
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