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PPG312F-.5 Datasheet(PDF) 1 Page - Data Delay Devices, Inc. |
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PPG312F-.5 Datasheet(HTML) 1 Page - Data Delay Devices, Inc. |
1 / 5 page PPG312F Doc #97008 DATA DELAY DEVICES, INC. 1 1/15/97 3 Mt. Prospect Ave. Clifton, NJ 07013 12-BIT PROGRAMMABLE PULSE GENERATOR (SERIES PPG312F) FEATURES PACKAGES • Digitally programmable in 4096 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 PPG312F-series device is a 12-bit digitally programmable pulse generator. The width, PWA, depends on the address code (A11-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 = 200ma 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 N/C N/C N/C N/C N/C GND N/C N/C GND A3 A5 A6 A7 GND A8 A9 A10 A11 VCC N/C OUT OUT/ N/C RES N/C N/C VCC A0 A1 A2 N/C N/C N/C N/C N/C A4 N/C VCC PPG312F-xx DIP PPG312F-xxC5 Gull-Wing PPG312F-xxM Military DIP PPG312F-xxMC5 Military Gull-Wing PIN DESCRIPTIONS TRIG Trigger Input OUT Non-inverted Output OUT/ Inverted Output A0-A11 Address Bits RES Reset VCC +5 Volts GND Ground DASH NUMBER SPECIFICATIONS Part Number Incremental Width Per Step (ns) Total Width Change (us) PPG312F-.5 .5 ± .3 2.048 ± 0.10 PPG312F-1 1 ± .5 4.096 ± 0.20 PPG312F-2 2 ± .5 8.192 ± 0.41 PPG312F-5 5 ± 1.5 20.48 ± 1.02 PPG312F-10 10 ± 2.0 40.96 ± 2.05 PPG312F-20 20 ± 2.0 81.92 ± 4.10 PPG312F-50 50 ± 2.5 204.8 ± 10.2 PPG312F-100 100 ± 5.0 409.6 ± 20.5 PPG312F-200 200 ± 10.0 819.2 ± 41.0 PPG312F-400 400 ± 20.0 1,638.4 ± 81.9 NOTE: Any dash number between .5 and 400 not shown is also available. |
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