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PPG38F-2 Datasheet(PDF) 1 Page - Data Delay Devices, Inc. |
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PPG38F-2 Datasheet(HTML) 1 Page - Data Delay Devices, Inc. |
1 / 5 page PPG38F Doc #97007 DATA DELAY DEVICES, INC. 1 1/15/97 3 Mt. Prospect Ave. Clifton, NJ 07013 8-BIT PROGRAMMABLE PULSE GENERATOR (SERIES PPG38F) FEATURES PACKAGES • Digitally programmable in 256 steps • Monotonic pulse-width-vs-address variation • Rising edge triggered • Two separate outputs: inverting & non-inverting • Precise and stable pulse width • Input & outputs fully TTL interfaced & buffered • 10 T 2L fan-out capability • Fits standard 40-pin DIP socket • Auto-insertable FUNCTIONAL DESCRIPTION The PPG38F-series device is a 8-bit digitally programmable pulse generator. The width, PWA, depends on the address code (A7-A0) according to the following formula: PWA = PW0 + TINC * A where A is the address code, TINC is the incremental pulse width of the device, and PW0 is the inherent pulse width of the device. The incremental width is specified by the dash number of the device and can range from 0.5ns through 400ns, inclusively. RESET is held LOW during normal operation. When it is brought HIGH, OUT and OUT/ are forced into LOW and HIGH states, respectively, and the unit is ready for the next trigger input. The address is not latched and must remain asserted while the output pulse is active. SERIES SPECIFICATIONS • Programmed pulse width tolerance: 5% or 2ns, whichever is greater • Inherent width (PW0): 20ns typical • Inherent delay (TTO): 10ns ± 2ns • Operating temperature: 0 ° to 70° C • Supply voltage VCC: 5VDC ± 5% • Supply current: ICC = 80ma typical © ©1997 Data Delay Devices data delay devices, inc. ® ® 3 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TRIG N/C OUT GND N/C N/C RES GND N/C N/C N/C GND N/C N/C N/C GND A7 N/C N/C GND VCC OUT/ N/C N/C VCC A0 A1 A2 VCC A3 A4 A5 VCC N/C N/C VCC N/C A6 N/C N/C PPG38F-xx DIP PPG38F-xxC5 Gull-Wing PPG38F-xxM Military DIP PPG38F-xxMC5 Military Gull-Wing PIN DESCRIPTIONS TRIG Trigger Input OUT Non-inverted Output OUT/ Inverted Output A0-A7 Address Bits RES Reset VCC +5 Volts GND Ground DASH NUMBER SPECIFICATIONS Part Number Incremental Width Per Step (ns) Total Width Change (ns) PPG38F-.5 .5 ± .3 127.5 ± 6.4 PPG38F-1 1 ± .5 255 ± 12.8 PPG38F-2 2 ± .5 510 ± 25.5 PPG38F-5 5 ± 1.5 1,275 ± 63.8 PPG38F-10 10 ± 2.0 2,550 ± 127.5 PPG38F-20 20 ± 2.0 5,100 ± 255.0 PPG38F-50 50 ± 2.5 12,750 ± 637.5 PPG38F-100 100 ± 5.0 25,500 ± 1275 PPG38F-200 200 ± 10.0 51,000 ± 2550 PPG38F-400 400 ± 20.0 102,000 ± 5100 NOTE: Any dash number between .5 and 400 not shown is also available. |
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Similar Description - PPG38F-2 |
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