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PPG312F

更新时间： 2024-09-17 06:04:47
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DATADELAY 脉冲脉冲发生器
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12-BIT PROGRAMMABLE PULSE GENERATOR(SERIES PPG312F)

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PPG312F 数据手册

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PPG312F  
Ò
12-BIT PROGRAMMABLE  
PULSE GENERATOR  
(SERIES PPG312F)  
data  
delay  
3
devices, inc.  
FEATURES  
PACKAGES  
TRIG  
N/C  
N/C  
N/C  
N/C  
N/C  
N/C  
GND  
N/C  
N/C  
GND  
A3  
1
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
VCC  
N/C  
OUT  
OUT/  
N/C  
RES  
N/C  
N/C  
VCC  
A0  
2
·
·
·
·
·
·
·
·
·
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  
3
4
PPG312F-xx  
DIP  
PPG312F-xxC5  
Gull-Wing  
PPG312F-xxM  
Military DIP  
PPG312F-xxMC5  
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
A1  
A2  
Fits standard 40-pin DIP socket  
Auto-insertable  
A5  
N/C  
N/C  
N/C  
N/C  
N/C  
A4  
Military Gull-Wing  
A6  
A7  
GND  
A8  
A9  
A10  
A11  
N/C  
VCC  
PIN DESCRIPTIONS  
FUNCTIONAL DESCRIPTION  
TRIG Trigger Input  
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:  
OUT Non-inverted Output  
OUT/ Inverted Output  
A0-A11 Address Bits  
RES  
VCC +5 Volts  
GND Ground  
Reset  
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.  
DASH NUMBER SPECIFICATIONS  
SERIES SPECIFICATIONS  
Part  
Number  
Incremental Width  
Per Step (ns)  
.5 ± .3  
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  
·
Programmed pulse width tolerance: 5% or 2ns,  
whichever is greater  
PPG312F-.5  
PPG312F-1  
PPG312F-2  
PPG312F-5  
PPG312F-10  
PPG312F-20  
PPG312F-50  
PPG312F-100  
PPG312F-200  
PPG312F-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 = 200ma 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 #97008  
1/15/97  
DATA DELAY DEVICES, INC.  
3 Mt. Prospect Ave. Clifton, NJ 07013  
1
12345

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