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

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

DDU12H

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

data 3 ® delay

devices, inc.

FEATURES

 

 

 

 

 

PACKAGES

 

 

 

Ten equally spaced outputs

GND

 

1

32

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

31

 

T1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

1

24

GND

Fits in 300 mil 32-pin DIP socket

T2

 

3

30

 

T3

T4

3

22

T3

T4

 

4

29

 

T5

Input & outputs fully 10KH-ECL interfaced & buffered

 

 

 

 

 

 

T2

2

23

T1

IN

 

5

 

 

 

IN

4

21

T5

 

 

 

 

 

 

 

 

 

 

 

N/C

5

20

N/C

 

 

 

 

 

 

 

VEE

6

19

N/C

 

 

 

 

 

 

 

GND

7

18

GND

 

VEE

 

8

 

 

 

N/C

8

17

N/C

 

 

 

 

 

 

GND

 

9

24

 

GND

N/C

9

16

N/C

 

 

 

T7

10

15

T6

 

 

 

 

23

 

T6

 

 

 

 

 

T8

11

14

T8

 

 

 

 

 

 

 

 

T2

 

11

22

 

T8

VEE

12

13

T10

 

 

 

 

T4

 

12

21

 

T10

 

 

 

 

DDU12H-xx DIP

 

 

 

 

 

 

DDU12H-xxC3

SMD

DDU12H-xxM Military DIP

 

 

 

 

 

DDU12H-xxMC3 Mil SMD

 

VEE

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FUNCTIONAL DESCRIPTION

PIN DESCRIPTIONS

The DDU12H-series device is a 10-tap digitally buffered delay line. The

IN

Signal Input

signal input (IN) is reproduced at the outputs (T1-T10), shifted in time by

T1-T10

Tap Outputs

an amount determined by the device dash number (See Table). For dash

VEE

-5 Volts

numbers less than 20, the total delay of the line is measured from T1 to

GND

Ground

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

1.5ns 10% 10% 10% 10% 10% 10% 10% 10% 10%

VCC IN

T1

T2

T3

T4

T5

T6

T7

T8

T9 T10 GND

Functional diagram for dash numbers < 20

10% 10% 10% 10% 10% 10% 10% 10% 10% 10%

VCC IN T1

T2

T3

T4

T5

T6

T7

T8

T9 T10 GND

Functional diagram for dash numbers >= 20

©1997 Data Delay Devices

DASH NUMBER SPECIFICATIONS

Part

Total

Delay Per

Number

Delay (ns)

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.

Doc #97036

DATA DELAY DEVICES, INC.

1

12/11/97

3 Mt. Prospect Ave. Clifton, NJ 07013

DDU12H

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

VEE

-7.0

0.3

V

 

Input Pin Voltage

VIN

VEE - 0.3

0.3

V

 

Storage Temperature

TSTRG

-55

150

C

 

Lead Temperature

TLEAD

 

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

 

-0.735

V

VIH = MAX,50Ω to -2V

Low Level Output Voltage

VOL

-1.950

 

-1.600

V

VIL = MIN, 50Ω to -2V

High Level Input Voltage

VIH

 

 

-1.070

V

 

Low Level Input Voltage

VIL

-1.480

 

 

V

 

High Level Input Current

IIH

 

 

475

μA

VIH = MAX

Low Level Input Current

IIL

0.5

 

 

μA

VIL = MIN

Doc #97036

DATA DELAY DEVICES, INC.

2

12/11/97

Tel: 973-773-2299 Fax: 973-773-9672 http://www.datadelay.com

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