DADD DDU18-48C3, DDU18-40MC3, DDU18-40C3, DDU18-32MC3, DDU18-32C3 Datasheet

DDU12H

Doc #97036 DATA DELAY DEVICES, INC. 1

12/11/97 3 Mt. Prospect Ave. Clifton, NJ 07013

5-TAP, ECL-INTERFACED
FIXED DELAY LINE
(SERIES DDU12H)

FEATURES PACKAGES

• Ten equally spaced outputs

• Fits in 300 mil 32-pin DIP socket

• Input & outputs fully 10KH-ECL interfaced & buffered

FUNCTIONAL DESCRIPTION

The DDU12H-series device is a 10-tap digitally buffered delay line. The
signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by
an amount determined by the device dash number (See Table). For dash
numbers less than 20, the total delay of the line is measured from T1 to
T10. The nominal tap-to-tap delay increment is given by one-ninth of the
total delay, and the inherent delay from IN to T1 is nominally 1.5ns. For dash numbers greater than or
equal to 20, the total delay of the line is measured from IN to T10. The nominal tap-to-tap delay increment
is given by one-tenth of this number.

SERIES SPECIFICATIONS

• Minimum input pulse width: 10% of total delay

• Output rise time: 2ns typical

• Supply voltage: -5VDC ± 5%

• Power dissipation: 400mw typical (no load)

• Operating temperature: -30° to 85° C

• Temp. coefficient of total delay: 100 PPM/°C

10% 10% 10% 10%

VCC GNDIN T1 T2 T3 T4 T10

Functional diagram for dash numbers < 20

1.5ns 10% 10% 10% 10%

T5 T6 T7 T8

10%

T9

10% 10% 10% 10%

VCC GNDIN T1 T2 T3 T4 T10

Functional diagram for dash numbers >= 20

10% 10% 10% 10%

T5 T6 T7 T8

10%

T9

10%

1997 Data Delay Devices

data

delay
devices, inc.



3

32
31
30
29

24
23
22
21

1

3
4
5

8
9

11
12

16

GND

T2
T4

IN

VEE

GND

T2
T4

VEE

GND
T1
T3
T5

GND
T6
T8
T10

1

2
3
4
5
6
7
8
9
10
11

12

24

23
22
21
20
19
18
17
16
15
14

13

GND

T2
T4

IN

N/C

VEE

GND

N/C
N/C

T7
T8

VEE

GND

T1
T3
T5
N/C
N/C
GND
N/C
N/C
T6
T8
T10

DDU12H-xx DIP
DDU12H-xxM Military DIP

DDU12H-xxC3 SMD
DDU12H-xxMC3 Mil SMD

PIN DESCRIPTIONS

IN Signal Input
T1-T10 Tap Outputs
VEE -5 Volts
GND Ground

DASH NUMBER SPECIFICATIONS

Part

Number

Total

Delay (ns)

Delay Per

Tap (ns)

DDU12H-10

9 ± 1.0 * 1.0 ± 0.3

DDU12H-20

20 ± 2.0 2.0 ± 0.4

DDU12H-25

25 ± 2.0 2.5 ± 0.4

DDU12H-40

40 ± 2.0 4.0 ± 0.5

DDU12H-50

50 ± 2.5 5.0 ± 1.0

DDU12H-75

75 ± 4.0 7.5 ± 1.5

DDU12H-100

100 ± 5.0 10.0 ± 2.0

DDU12H-150

150 ± 7.5 15.0 ± 2.0

DDU12H-200

200 ± 10.0 20.0 ± 2.0

DDU12H-250

250 ± 12.5 25.0 ± 2.0

DDU12H-300

300 ± 15.0 30.0 ± 2.0

DDU12H-400

400 ± 20.0 40.0 ± 2.0

DDU12H-500

500 ± 25.0 50.0 ± 2.5

DDU12H-750

750 ± 37.5 75.0 ± 4.0

DDU12H-1000

1000 ± 50.0 100.0 ± 5.0

DDU12H-1500

1500 ± 75.0 150.0 ± 7.0

* Total delay is referenced to first tap output
Input to first tap = 1.5ns ±± 1ns

NOTE: Any dash number between 10 and 1500

not shown is also available.

DDU12H

Doc #97036 DATA DELAY DEVICES, INC. 2

12/11/97 Tel: [phone] Fax: [phone] http://www.datadelay.com

APPLICATION NOTES

HIGH FREQUENCY RESPONSE

The DDU12H 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 10% of the total delay and periods as
small as 20% 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 DDU12H 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 V

EE

-7.0 0.3 V

Input Pin Voltage V

IN

VEE - 0.3 0.3 V

Storage Temperature T

STRG

-55 150 C

Lead Temperature T

LEAD

300 C 10 sec

TABLE 2: DC ELECTRICAL CHARACTERISTICS

(0C to 75C)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

High Level Output Voltage V

OH

-1.020 -0.735 V

VIH = MAX,50Ω to -2V

Low Level Output Voltage V

OL

-1.950 -1.600 V

VIL = MIN, 50Ω to -2V

High Level Input Voltage V

IH

-1.070 V

Low Level Input Voltage V

IL

-1.480 V

High Level Input Current I

IH

475

µA

VIH = MAX

Low Level Input Current I

IL

0.5

µA

VIL = MIN