DS1000
DS1000
5-Tap Silicon Delay Line
www.dalsemi.com
FEATURES
All-silicon time delay
5 taps equally spaced
Delays are stable and precise
Both leading and trailing edge accuracy
Delay tolerance ± 5% or ± 2 ns, whichever is greater
Low-power CMOS
TTL/CMOS-compatible
Vapor phase, IR and wave solderable
Custom delays available
Fast turn prototypes
Extended temperature range available (DS1000-IND)
PIN ASSIGNMENT
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IN |
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1 |
14 |
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VCC |
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1 |
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8 |
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VCC |
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IN |
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NC |
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2 |
13 |
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NC |
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2 |
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7 |
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TAP 1 |
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TAP 2 |
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NC |
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3 |
12 |
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TAP 1 |
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3 |
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TAP 4 |
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6 |
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TAP 3 |
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TAP 2 |
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4 |
11 |
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NC |
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4 |
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5 |
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GND |
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TAP 5 |
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NC |
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5 |
10 |
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TAP 3 |
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TAP 4 |
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6 |
9 |
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NC |
DS1000M 8-Pin DIP (300-mil) |
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See Mech. Drawings Section |
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GND |
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7 |
8 |
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TAP 5 |
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DS1000 |
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(300-mil) |
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14-Pin DIP |
IN |
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1 |
8 |
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VCC |
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See Mech. Drawings Section |
TAP 2 |
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2 |
7 |
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TAP 1 |
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TAP 4 |
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3 |
6 |
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TAP 3 |
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GND |
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4 |
5 |
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TAP 5 |
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DS1000Z 8-Pin SOIC (150-mil)
See Mech. Drawings Section
PIN DESCRIPTION
TAP 1-TAP 5 - TAP Output Number
VCC |
- +5 Volts |
GND |
- Ground |
NC |
- No Connection |
IN |
- Input |
DESCRIPTION
The DS1000 series delay lines have five equally spaced taps providing delays from 4 ns to 500 ns. These devices are offered in a standard 14-pin DIP that is pin-compatible with hybrid delay lines. Alternatively, 8-pin DIPs and surface mount packages are available to save PC board area. Low cost and superior reliability over hybrid technology is achieved by the combination of a 100% silicon delay line and industry standard DIP and SOIC packaging. In order to maintain complete pin compatibility, DIP packages are available with hybrid lead configurations. The DS1000 series delay lines provide a nominal accuracy of ± 5% or ± 2 ns, whichever is greater. The DS1000 5-Tap Silicon Delay Line reproduces the input logic state at the output after a fixed delay as specified by the extension of the part number after the dash. The DS1000 is designed to reproduce both leading and trailing edges with equal precision. Each tap is capable of driving up to ten 74LS loads. Dallas Semiconductor can customize standard products to meet special needs. For special requests and rapid delivery, call 972-371-4348.
1 of 5 |
111799 |
DS1000
LOGIC DIAGRAM Figure 1
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DS1000 |
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PART NUMBER DELAY TABLE (all values in ns) Table 1 |
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PART # |
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TAP 1 |
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TAP 2 |
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TAP 3 |
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TAP 4 |
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TAP 5 |
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TOLERANCE |
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TOLERANCE |
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TOLERANCE |
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TOLERANCE |
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TOLERANCE |
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DS1000- |
Nom |
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Nom |
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Nom |
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Nom |
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Nom |
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Init |
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Temp |
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Init |
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Temp |
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Init |
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Temp |
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Init |
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Temp |
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Init |
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Temp |
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-20 |
4 |
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2 |
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1 |
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8 |
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2 |
1 |
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12 |
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2 |
1 |
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16 |
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2 |
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1 |
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20 |
2 |
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1 |
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-25 |
5 |
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2 |
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1 |
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10 |
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2 |
1 |
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15 |
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2 |
1 |
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20 |
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2 |
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1 |
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25 |
2 |
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1 |
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-30 |
6 |
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2 |
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1 |
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12 |
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2 |
1 |
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18 |
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2 |
1 |
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24 |
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2 |
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1 |
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30 |
2 |
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1 |
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-35 |
7 |
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2 |
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1 |
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14 |
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2 |
1 |
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21 |
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2 |
1 |
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28 |
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2 |
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1 |
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35 |
2 |
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1.1 |
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-40 |
8 |
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2 |
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1 |
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16 |
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2 |
1 |
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24 |
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2 |
1 |
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32 |
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2 |
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1 |
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40 |
2 |
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1.2 |
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-45 |
9 |
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2 |
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1 |
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18 |
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2 |
1 |
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27 |
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2 |
1 |
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36 |
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2 |
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1.1 |
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45 |
2.3 |
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1.4 |
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-50 |
10 |
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2 |
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1 |
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20 |
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2 |
1 |
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30 |
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2 |
1 |
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40 |
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2 |
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1.2 |
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50 |
2.5 |
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1.5 |
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-60 |
12 |
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2 |
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1 |
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24 |
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2 |
1 |
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36 |
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2 |
1.1 |
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48 |
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2.4 |
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1.5 |
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60 |
3 |
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1.8 |
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-75 |
15 |
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2 |
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1 |
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30 |
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2 |
1 |
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45 |
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2.3 |
1.4 |
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60 |
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3 |
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1.8 |
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75 |
3.8 |
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2.3 |
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-100 |
20 |
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2 |
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1 |
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40 |
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2 |
1.2 |
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60 |
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3 |
1.8 |
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80 |
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4 |
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2.4 |
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100 |
5 |
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3 |
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-125 |
25 |
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2 |
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1 |
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50 |
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2.5 |
1.5 |
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75 |
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3.8 |
2.3 |
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100 |
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5 |
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3 |
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125 |
6.3 |
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3.8 |
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-150 |
30 |
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2 |
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1 |
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60 |
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3 |
1.8 |
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90 |
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4.5 |
2.7 |
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120 |
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6 |
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3.6 |
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150 |
7.5 |
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4.5 |
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-175 |
35 |
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2 |
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1.1 |
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70 |
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3.5 |
2.1 |
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105 |
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5.3 |
3.2 |
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140 |
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7 |
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4.2 |
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175 |
8.8 |
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5.3 |
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-200 |
40 |
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2 |
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1.2 |
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80 |
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4 |
2.4 |
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120 |
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6 |
3.6 |
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160 |
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8 |
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4.8 |
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200 |
10 |
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6 |
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-250 |
50 |
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2.5 |
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1.5 |
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100 |
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5 |
3 |
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150 |
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7.5 |
4.5 |
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200 |
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10 |
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6 |
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250 |
12.5 |
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7.5 |
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-500 |
100 |
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5 |
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3 |
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200 |
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10 |
6 |
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300 |
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15 |
9 |
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400 |
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20 |
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12 |
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500 |
25 |
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15 |
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DC ELECTRICAL CHARACTERISTICS |
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(0°C to 70°C; VCC = 5.0V ± 5%) |
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PARAMETER |
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SYM |
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TEST |
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MIN |
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TYP |
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MAX |
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UNITS |
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NOTES |
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CONDITION |
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Supply Voltage |
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VCC |
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4.75 |
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5.00 |
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5.25 |
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V |
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6 |
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High Level Input |
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VIH |
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2.2 |
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VCC + 0.5 |
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V |
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6 |
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Voltage |
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Low Level Input |
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VIL |
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-0.5 |
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0.8 |
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V |
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6 |
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Voltage |
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Input Leakage |
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II |
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0.0V ≤ |
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VI ≤ VCC |
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-1.0 |
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1.0 |
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uA |
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Current |
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Active Current |
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ICC |
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VCC=Max; |
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35 |
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75 |
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mA |
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7, 9 |
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Period=Min. |
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High Level Output |
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IOH |
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VCC=Min. |
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-1 |
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mA |
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Current |
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VOH=4 |
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Low Level Output |
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IOL |
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VCC=Min. |
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12 |
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mA |
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Current |
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VOL=0.5 |
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AC ELECTRICAL CHARACTERISTICS |
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(TA = 25°C; VCC = 5V ± 5%) |
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PARAMETER |
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SYMBOL |
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MIN |
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TYP |
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MAX |
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UNITS |
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NOTES |
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Input Pulse Width |
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tWI |
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40% of Tap 5 tPLH |
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ns |
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8 |
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Input to Tap Delay |
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tPLH |
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Table 1 |
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ns |
1, 2, 3, 4, |
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(leading edge) |
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5, 10 |
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Input to Tap Delay |
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tPHL |
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Table 1 |
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ns |
1, 2, 3, 4, |
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(trailing edge) |
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5, 10 |
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Power-up Time |
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tPU |
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100 |
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ms |
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Input Period |
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Period |
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4 (tWI) |
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ns |
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8 |
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2 of 5