DDU18-72C4 datasheet(2/4 Pages) DATADELAY

Part #	DDU18-72C4

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

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Manufacturer	DATADELAY [Data Delay Devices, Inc.]

Direct Link	http://www.datadelay.com

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2 / 4 page

DDU18

APPLICATION NOTES

HIGH FREQUENCY RESPONSE

The DDU18 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 40% of the total delay and periods as

small as 80% 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 DDU18 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 85C)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

High Level Output Voltage

VOH

-1.025

-0.880

V

VIH = MAX,50Ω to -2V

Low Level Output Voltage

VOL

-1.810

-1.620

V

VIL = MIN, 50Ω to -2V

High Level Input Voltage

VIH

-1.165

-0.880

V

Low Level Input Voltage

VIL

-1.810

-1.475

V

High Level Input Current

IIH

340

µA

VIH = MAX

Low Level Input Current

IIL

0.5

µA

VIL = MIN

Doc #97041

DATA DELAY DEVICES, INC.

2

5/5/04

Tel: 973-773-2299

Fax: 973-773-9672

http://www.datadelay.com

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