Datasheet LTC6930-X.XX (Analog Devices) - 7

LTC6930-X.XX
Typical perForMance characTerisTics Typical Jitter vs Supply in Divide by 1 Mode Typical Period Jitter Histogram Typical Jitter vs Divider Setting
0.30 400 0.16 TA = 25°C LTC6930-8.19 V+ = 3V V+ = 3V TA = 25°C 0.14 TA = 25°C 0.25 DIVIDE = 1 4.194MHz 300 0.12 0.20 0.10 0.15 200 0.08 8.192MHz SAMPLES 4.194MHz 0.06 JITTER (% RMS) 0.10 JITTER (% RMS) 100 0.04 8.192MHz 0.05 0.02 0 0 0 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 –450 –300 –150 0 150 300 450 1 10 100 SUPPLY VOLTAGE (V) PERIOD ERROR (ps) DIV SETTING (LOG) 4216 G11 6930 G12 4216 G10
Typical Output Rise/Fall Time Typical Output Resistance Typical Output Duty Cycle vs Supply vs Supply Voltage vs Supply and Divide Ratio
4.5 100 60 CLOAD = 5pF TA = 25°C 4.0 TA = 25°C 90 58 3.5 80 56 8MHz, DIVIDE BY 1 70 54 3.0 RISE TIME 60 52 2.5 50 50 2.0 FALL TIME 40 48 DIVIDE BY >1 1.5 DUTY CYCLE (%) 30 46 4MHz, DIVIDE BY 1 OUTPUT RESISTANCE (Ω) OUTPUT RISE/FALL TIME (ns) 1.0 20 44 0.5 10 42 0 0 40 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) 4216 G13 4216 G14 4216 G15
Typical Frequency Settling Typical Frequency Error Typical Output Waveform from Power-Up vs Time (Long-Term Drift) at DIV Pin Change
10 500 25 PARTS SHOWN 400 T 5 A = 30°C 300 0 200 –5 100 –10 0 –100 –15 –200 FREQUENCY ERROR (%) –20 DELTA FREQUENCY (ppm) –300 6930 G18 –25 –400 400ns/DIV –30 –500 0 50 100 150 200 0 500 1000 1500 2000 2500 3000 TIME SINCE POWER APPLIED (µs) TIME (HOURS) 4216 G16 4216 G17 6930fe For more information www.linear.com/LTC6930 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information AC Electrical Characteristics DC Electrical Characteristics Timing Characteristics Pin Functions Applications Information Package Description Revision History Related Parts