DDU11H
5-TAP, ECL-INTERFACED FIXED DELAY LINE (SERIES DDU11H)
data 3 ® delay
devices, inc.
FEATURES
∙Five equally spaced outputs
∙Fits standard 16-pin DIP socket
∙Auto-insertable
∙Input & outputs fully 10KH-ECL interfaced & buffered
PACKAGES
GND |
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1 |
16 |
GND |
GND |
1 |
16 |
GND |
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15 |
T1 |
N/C |
2 |
15 |
T1 |
T2 |
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3 |
14 |
T3 |
T2 |
3 |
14 |
T3 |
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T4 |
4 |
13 |
T5 |
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T4 |
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4 |
13 |
T5 |
IN |
5 |
12 |
N/C |
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IN |
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N/C |
6 |
11 |
N/C |
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5 |
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N/C |
7 |
10 |
N/C |
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VEE |
8 |
9 |
N/C |
VEE |
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8 |
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DDU11H-xx DIP |
DDU11H-xxC3 |
SMD |
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DDU11H-xxM Military DIP |
DDU11H-xxMC3 |
Mil SMD |
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FUNCTIONAL DESCRIPTION |
PIN DESCRIPTIONS |
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The DDU11H-series device is a 5-tap digitally buffered delay line. The |
IN |
Signal Input |
signal input (IN) is reproduced at the outputs (T1-T5), shifted in time by an |
T1-T5 |
Tap Outputs |
amount determined by the device dash number (See Table). For dash |
VEE |
-5 Volts |
numbers less than 10, the total delay of the line is measured from T1 to |
GND |
Ground |
T5. The nominal tap-to-tap delay increment is given by one-fourth of the |
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total delay, and the inherent delay from IN to T1 is nominally 1.5ns. For dash numbers greater than or equal to 10, the total delay of the line is measured from IN to T5. The nominal tap-to-tap delay increment is given by one-fifth of this number.
SERIES SPECIFICATIONS
∙Minimum input pulse width: 20% of total delay
∙Output rise time: 2ns typical
∙Supply voltage: -5VDC ± 5%
∙Power dissipation: 200mw typical (no load)
∙Operating temperature: -30° to 85° C
∙Temp. coefficient of total delay: 100 PPM/°C
1.5ns 25% 25% 25% 25%
VCC IN |
T1 |
T2 |
T3 |
T4 |
T5 GND |
Functional diagram for dash numbers < 10
20% 20% 20% 20% 20%
VCC IN |
T1 |
T2 |
T3 |
T4 |
T5 GND |
DASH NUMBER SPECIFICATIONS
Part |
Total |
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Delay Per |
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Number |
Delay (ns) |
Tap (ns) |
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DDU11H-4 |
2 ± 1.0 |
* |
0.5 ± 0.3 |
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DDU11H-5 |
4 ± 1.0 |
* |
1.0 ± 0.3 |
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DDU11H-8 |
6 ± 2.0 |
* |
1.5 ± 0.4 |
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DDU11H-10 |
10 |
± 2.0 |
2.0 ± 0.4 |
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DDU11H-20 |
20 |
± 3.0 |
5.0 ± 1.0 |
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DDU11H-25 |
25 |
± 3.0 |
5.0 ± 2.0 |
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DDU11H-50 |
50 |
± 3.0 |
10.0 ± 2.0 |
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DDU11H-75 |
75 |
± 4.0 |
15.0 ± 2.0 |
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DDU11H-100 |
100 ± 5.0 |
20.0 ± 2.0 |
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DDU11H-150 |
150 ± 7.5 |
30.0 ± 2.0 |
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DDU11H-200 |
200 |
± 10.0 |
40.0 ± 2.0 |
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DDU11H-250 |
250 |
± 12.5 |
50.0 ± 2.5 |
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DDU11H-300 |
300 |
± 15.0 |
60.0 ± 3.0 |
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DDU11H-400 |
400 |
± 20.0 |
80.0 ± 4.0 |
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DDU11H-500 |
500 |
± 25.0 |
100.0 ± 5.0 |
*Total delay is referenced to first tap output Input to first tap = 1.5ns ± 1ns
NOTE: Any dash number between 4 and 500 not shown is also available.
Functional diagram for dash numbers >= 10
©1997 Data Delay Devices
Doc #97035 |
DATA DELAY DEVICES, INC. |
1 |
12/10/97 |
3 Mt. Prospect Ave. Clifton, NJ 07013 |
DDU11H
APPLICATION NOTES
HIGH FREQUENCY RESPONSE
The DDU11H tolerances are guaranteed for input pulse widths and periods greater than those specified in the test conditions. Although the device will function properly for pulse widths as small as 20% of the total delay and periods as small as 40% of the total delay (for a symmetric input), the delays may deviate from their values at low frequency. However, for a given input condition, the deviation will be repeatable from pulse to pulse. Contact technical support at Data
Delay Devices if your application requires device testing at a specific input condition.
POWER SUPPLY BYPASSING
The DDU11H relies on a stable power supply to produce repeatable delays within the stated tolerances. A 0.1uf capacitor from VEE to GND, located as close as possible to the VEE pin, is recommended. A wide VEE trace and a clean ground plane should be used.
DEVICE SPECIFICATIONS
TABLE 1: ABSOLUTE MAXIMUM RATINGS
PARAMETER |
SYMBOL |
MIN |
MAX |
UNITS |
NOTES |
DC Supply Voltage |
VEE |
-7.0 |
0.3 |
V |
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Input Pin Voltage |
VIN |
VEE - 0.3 |
0.3 |
V |
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Storage Temperature |
TSTRG |
-55 |
150 |
C |
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Lead Temperature |
TLEAD |
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300 |
C |
10 sec |
TABLE 2: DC ELECTRICAL CHARACTERISTICS
(0C to 75C)
PARAMETER |
SYMBOL |
MIN |
TYP |
MAX |
UNITS |
NOTES |
High Level Output Voltage |
VOH |
-1.020 |
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-0.735 |
V |
VIH = MAX,50Ω to -2V |
Low Level Output Voltage |
VOL |
-1.950 |
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-1.600 |
V |
VIL = MIN, 50Ω to -2V |
High Level Input Voltage |
VIH |
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-1.070 |
V |
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Low Level Input Voltage |
VIL |
-1.480 |
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V |
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High Level Input Current |
IIH |
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475 |
μA |
VIH = MAX |
Low Level Input Current |
IIL |
0.5 |
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μA |
VIL = MIN |
Doc #97035 |
DATA DELAY DEVICES, INC. |
2 |
12/10/97 |
Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com |