PPG33F Datasheet, PDF (1/5 Pages) Data Delay Devices, Inc. – 3-BIT PROGRAMMABLE PULSE GENERATOR (SERIES PPG33F)

3-BIT PROGRAMMABLE
PULSE GENERATOR
(SERIES PPG33F)
PPG33F
ddaeltaay ₃ ^
devices, inc.
FEATURES
PACKAGES
• Digitally programmable in 7 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 T²L fan-out capability
• Fits standard 14-pin DIP socket
• Auto-insertable
TRIG
OUT
N/C
N/C
N/C
RES
GND
1 14 VCC
2 13 OUT/
3 12 N/C
4 11 N/C
5 10 A0
6 9 A1
7 8 A2
DIP
PPG33F-xx Commercial
PPG33F-xxM Military
TRIG 1 16 VCC
N/C 2 15 OUT/
OUT 3 14 N/C
N/C 4 13 N/C
N/C 5 12 A0
N/C 6 11 A1
RES 7 10 A2
GND 8 9 N/C
Gull-Wing
PPG33F-xxC3 Commercial
PPG33F-xxMC3 Military
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
The PPG33F-series device is a 3-bit digitally programmable pulse
TRIG Trigger Input
generator. The width, PW_A, depends on the address code (A2-A0)
OUT Non-inverted Output
according to the following formula:
OUT/ Inverted Output
A0-A2 Address Bits
PW_A = PW₀ + T_INC * A
RES Reset
VCC +5 Volts
where A is the address code, T_INC is the incremental pulse width of the
GND Ground
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 50ns,
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 1ns,
whichever is greater
• Inherent width (PW₀): 9ns typical
• Inherent delay (T_TO): 3.5ns ± 2ns
• Operating temperature: 0° to 70° C
• Supply voltage V_CC: 5VDC ± 5%
• Supply current: I_CC = 41ma typical
1997 Data Delay Devices
DASH NUMBER SPECIFICATIONS
Part
Number
PPG33F-.5
PPG33F-1
PPG33F-2
PPG33F-3
PPG33F-4
PPG33F-5
PPG33F-6
PPG33F-8
PPG33F-10
PPG33F-20
PPG33F-30
PPG33F-40
PPG33F-50
Incremental Width
Per Step (ns)
0.5 ± 0.3
1 ± 0.4
2 ± 0.4
3 ± 0.5
4 ± 0.5
5 ± 0.6
6 ± 0.7
8 ± 0.8
10 ± 1.0
20 ± 1.5
30 ± 1.8
40 ± 2.0
50 ± 2.5
Total Width
Change (ns)
3.50 ± 1.00
7.00 ± 1.00
14.0 ± 1.00
21.0 ± 1.05
28.0 ± 1.40
35.0 ± 1.75
42.0 ± 2.10
56.0 ± 2.80
70.0 ± 3.50
140 ± 7.00
210 ± 10.5
280 ± 14.0
350 ± 17.5
NOTE: Any dash number between .5 and 50 not
shown is also available.
Doc #97010
DATA DELAY DEVICES, INC.
1
1/15/97
3 Mt. Prospect Ave. Clifton, NJ 07013