DDU18 datasheet, PDF - EEWORLD Datasheet

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DDU18: Description8-TAP, ECL-INTERFACED FIXED DELAY LINE FIXED DELAY LINE; File Size139KB，4 Pages; ManufacturerData Delay Devices

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8-TAP, ECL-INTERFACED FIXED DELAY LINE FIXED DELAY LINE

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DDU18

8-TAP, ECL-INTERFACED

FIXED DELAY LINE

(SERIES DDU18)

FEATURES

•

Eight equally spaced outputs

Fits in 400 mil 24-pin DIP socket

Input & outputs fully 100K-ECL interfaced & buffered

GND

data

delay

devices,

inc.

PACKAGES



GND

VEE

GND

N/C

GND

N/C

GND

VEE

N/C

GND

DDU18-xx

DDU18-xxM

DIP

Military DIP

GND

DDU18-xxC4

DDU18-xxMC4

SMD

Mil SMD

FUNCTIONAL DESCRIPTION

PIN DESCRIPTIONS

The DDU18-series device is a 8-tap digitally buffered delay line. The

Signal Input

signal input (IN) is reproduced at the outputs (T1-T8), shifted in time by an

T1-T8 Tap Outputs

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

VEE

-5 Volts

numbers less than 16, the total delay of the line is measured from T1 to

GND Ground

T8. The nominal tap-to-tap delay increment is given by one-seventh of the

total delay, and the inherent delay from IN to T1 is nominally 2.0ns. For dash numbers greater than or

equal to 16, the total delay of the line is measured from IN to T8. The nominal tap-to-tap delay increment is

given by one-eighth of this number.

SERIES SPECIFICATIONS

•

Minimum input pulse width:

40% of total delay

Output rise time:

2ns typical

Supply voltage:

-5VDC

Power dissipation:

500mw typical (no load)

Operating temperature:

0° to 85° C

Temp. coefficient of total delay:

100 PPM/°C

2.0ns

1/7

DASH NUMBER SPECIFICATIONS

Part

Number

DDU18-4

DDU18-8

DDU18-12

DDU18-16

DDU18-20

DDU18-24

DDU18-32

DDU18-40

DDU18-48

DDU18-56

DDU18-64

DDU18-72

DDU18-80

DDU18-100

DDU18-120

DDU18-160

DDU18-200

Total

Delay (ns)

3.5

1.0 *

7.0

1.0 *

10.5

1.0 *

1.0

1.2

1.6

2.0

2.4

2.8

3.2

3.6

4.0

100

5.0

120

6.0

160

8.0

200

10.0

Delay Per

Tap (ns)

0.5

0.3

1.0

0.4

1.5

0.4

2.0

0.5

2.5

1.0

3.0

1.5

4.0

2.0

5.0

2.0

6.0

2.0

7.0

2.0

8.0

2.0

9.0

2.0

10.0

2.5

12.5

2.5

15.0

3.0

20.0

4.0

25.0

5.0

VCC IN

T8 GND

Functional diagram for dash numbers < 16

1/8

* Total delay is referenced to first tap output

Input to first tap = 2.0ns

1ns

VCC IN

T8 GND

Functional diagram for dash numbers >= 16

2004

Data Delay Devices

NOTE: Any dash number between 4 and 200

not shown is also available.

Doc #97041

5/5/04

DATA DELAY DEVICES, INC.

3 Mt. Prospect Ave. Clifton, NJ 07013

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