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PPG38FSERIES

更新时间: 2024-09-17 23:29:03
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其他 - ETC 脉冲脉冲发生器
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描述
8-BIT PROGRAMMABLE PULSE GENERATOR

PPG38FSERIES 数据手册

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PPG38F  
Ò
8-BIT PROGRAMMABLE  
PULSE GENERATOR  
(SERIES PPG38F)  
data  
delay  
3
devices, inc.  
FEATURES  
PACKAGES  
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  
1
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
VCC  
OUT/  
N/C  
N/C  
VCC  
A0  
2
·
·
·
·
·
·
·
·
·
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 T2L fan-out capability  
3
4
PPG38F-xx  
DIP  
PPG38F-xxC5  
Gull-Wing  
PPG38F-xxM  
Military DIP  
PPG38F-xxMC5  
5
6
A1  
7
8
A2  
VCC  
A3  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
A4  
A5  
Fits standard 40-pin DIP socket  
Auto-insertable  
VCC  
N/C  
N/C  
VCC  
N/C  
A6  
Military Gull-Wing  
N/C  
N/C  
GND  
N/C  
N/C  
PIN DESCRIPTIONS  
FUNCTIONAL DESCRIPTION  
TRIG Trigger Input  
OUT Non-inverted Output  
OUT/ Inverted Output  
A0-A7 Address Bits  
RES Reset  
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  
VCC +5 Volts  
GND Ground  
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.  
DASH NUMBER SPECIFICATIONS  
SERIES SPECIFICATIONS  
Part  
Number  
Incremental Width  
Per Step (ns)  
.5 ± .3  
Total Width  
Change (ns)  
127.5 ± 6.4  
255 ± 12.8  
510 ± 25.5  
1,275 ± 63.8  
2,550 ± 127.5  
5,100 ± 255.0  
12,750 ± 637.5  
25,500 ± 1275  
51,000 ± 2550  
102,000 ± 5100  
·
Programmed pulse width tolerance: 5% or 2ns,  
whichever is greater  
PPG38F-.5  
PPG38F-1  
PPG38F-2  
PPG38F-5  
PPG38F-10  
PPG38F-20  
PPG38F-50  
PPG38F-100  
PPG38F-200  
PPG38F-400  
·
·
·
·
·
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  
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  
NOTE: Any dash number between .5 and 400 not  
shown is also available.  
Ó1997 Data Delay Devices  
Doc #97007  
1/15/97  
DATA DELAY DEVICES, INC.  
3 Mt. Prospect Ave. Clifton, NJ 07013  
1

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