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PDF PPG312F Data sheet ( Hoja de datos )
| Número de pieza | PPG312F | |
| Descripción | 12-BIT PROGRAMMABLE PULSE GENERATOR | |
| Fabricantes | Data Delay Devices | |
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12-BIT PROGRAMMABLE
PULSE GENERATOR
(SERIES PPG312F)
PPG312F
data
delay
3
®
devices, inc.
FEATURES
• 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 T2L fan-out capability
• Fits standard 40-pin DIP socket
• Auto-insertable
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PACKAGES
40 VCC
39 N/C
38 OUT
37 OUT/
36 N/C
35 RES
34 N/C
33 N/C
32 VCC
31 A0
30 A1
29 A2
28 N/C
27 N/C
26 N/C
25 N/C
24 N/C
23 A4
22 N/C
21 VCC
PPG312F-xx
DIP
PPG312F-xxC5
Gull-Wing
PPG312F-xxM
Military DIP
PPG312F-xxMC5
Military Gull-Wing
FUNCTIONAL DESCRIPTION
PIN DESCRIPTIONS
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:
TRIG Trigger Input
OUT Non-inverted Output
OUT/ Inverted Output
A0-A11 Address Bits
PWA = PW0 + TINC * A
RES Reset
VCC +5 Volts
where A is the address code, TINC 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 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
DASH NUMBER SPECIFICATIONS
Part
Number
PPG312F-.5
PPG312F-1
PPG312F-2
PPG312F-5
PPG312F-10
PPG312F-20
PPG312F-50
PPG312F-100
PPG312F-200
PPG312F-400
Incremental Width
Per Step (ns)
.5 ± .3
1 ± .5
2 ± .5
5 ± 1.5
10 ± 2.0
20 ± 2.0
50 ± 2.5
100 ± 5.0
200 ± 10.0
400 ± 20.0
Total Width
Change (us)
2.048 ± 0.10
4.096 ± 0.20
8.192 ± 0.41
20.48 ± 1.02
40.96 ± 2.05
81.92 ± 4.10
204.8 ± 10.2
409.6 ± 20.5
819.2 ± 41.0
1,638.4 ± 81.9
NOTE: Any dash number between .5 and 400 not
shown is also available.
©1997 Data Delay Devices
Doc #97008
1/15/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
1
1 page  
DELAY LINE AUTOMATED TESTING
PPG312F
TEST CONDITIONS
INPUT:
Ambient Temperature: 25oC ± 3oC
Supply Voltage (Vcc): 5.0V ± 0.1V
Input Pulse:
High = 3.0V ± 0.1V
Low = 0.0V ± 0.1V
Source Impedance: 50Ω Max.
Rise/Fall Time:
3.0 ns Max. (measured
between 0.6V and 2.4V )
Pulse Width:
PWIN = 10ns
Period:
PERIN = 2 x Max. Pulse Width
OUTPUT:
Load:
Cload:
Threshold:
1 FAST-TTL Gate
5pf ± 10%
1.5V (Rising & Falling)
NOTE: The above conditions are for test only and do not in any way restrict the operation of the device.
COMPUTER
SYSTEM
PRINTER
PULSE
GENERATOR
OUT
TRIG
IN DEVICE UNDER OUT
TEST (DUT)
REF
IN
TRIG
TIME INTERVAL
COUNTER
Test Setup
INPUT
SIGNAL
OUTPUT
SIGNAL
TRISE
PWIN
PERIN
TFALL
2.4V VIH 2.4V
1.5V
1.5V
0.6V
0.6V
VIL
TTO PWA
1.5V
VOH
1.5V
Timing Diagram For Testing
VOL
Doc #97008
1/15/97
DATA DELAY DEVICES, INC.
3 Mt. Prospect Ave. Clifton, NJ 07013
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet PPG312F.PDF ] | |
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