LTC1069-7 Linear Technology, LTC1069-7 Datasheet
LTC1069-7
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LTC1069-7 Summary of contents
Page 1
... CLK IN IN 8th Order Lowpass Filter cutoff frequency of the LTC1069-7 is set by an external clock and is equal to the clock frequency divided by 25. The ratio of the internal sampling frequency to the cutoff frequency is 50:1 that is, the input signal is sampled twice per clock cycle to lower the risk of aliasing. The LTC1069- 7 can be operated from a single 5V supply up to dual 5V supplies ...
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... Total Supply Voltage ( ............................. 12V Power Dissipation............................................. 400mW Operating Temperature Range LTC1069-7C ........................................... LTC1069-7I ....................................... – Storage Temperature ............................ – 150 C Lead Temperature (Soldering, 10 sec).................. 300 C ELECTRICAL CHARACTERISTICS f is the filter’s cutoff frequency and is equal to f CUTOFF ...
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... SOURCE SINK 5V 500kHz S CLK V = 4.75V 400kHz S CLK Example: An LTC1069-7 has Phase at 0. – 235 . CUTOFF ) – (Phase Passband Phase Deviation from Linear Phase CUTOFF = 1/2[180 – (– 235 )] – [(180 – (– 30 – 3 Transition Band Gain vs Frequency ...
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... GAIN –2 12.5 –3 –4 12.0 –5 DELAY –6 11.5 –7 –8 11 100 FREQUENCY (kHz) LTC1069-7 • TPC12 4MHz CLK f = 160kHz RMS 130 160 LTC1069-7 • TPC06 100 LTC1069-7 • TPC09 ...
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... CLK f = 20kHz CUTOFF R = 10k L 1 SOURCE 1.1 1.0 5.25 – –20 TEMPERATURE ( C) Supply Current vs Clock Frequency 0.25 1.25 2.25 3.25 CLOCK FREQUENCY (MHz) P-P 100 LTC1069-7 • TPC14 1mA SINK 60 80 100 LTC1069-7 • TPC17 4.25 5.25 LTC1263 • TPC20 5 ...
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... ANALOG GROUND PLANE 8 V OUT OUT V 7 – STAR 1k SYSTEM GROUND CLOCK SOURCE LTC1069-7 • F01 Figure 2. Connections for Dual Supply Operation = 5V). Sine waves less than S HIGH LEVEL LOW LEVEL 1.5V 6.5V 1. AGND V V OUT OUT – ...
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... U U APPLICATIONS INFORMATION Temperature Behavior The power supply current of the LTC1069-7 has a positive temperature coefficient. The GBW product of its internal op amps is nearly constant and the speed of the device does not degrade at high temperatures. Clock Feedthrough The clock feedthrough is defined as the RMS value of the clock frequency and its harmonics that are present at the filter’ ...
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... McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977 www.linear-tech.com 1 F 10k – AGND V OUT –5V + – 0.1 F LTC1069 CLK f 5MHz IN CLK U Dimensions in inches (millimeters) unless otherwise noted. S8 Package 8-Lead Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) 0.004 – 0.010 (0.101 – ...