DDU224F

Doc #97015

DATA DELAY DEVICES, INC.

1

1/29/97

3 Mt. Prospect Ave. Clifton, NJ 07013

10-TAP, TTL-INTERFACED

FIXED DELAY LINE

(SERIES DDU224F)

FEATURES

PACKAGES

•

Ten equally spaced outputs

•

Very narrow device (SIP package)

•

Stackable for PC board economy

•

Input & outputs fully TTL interfaced & buffered

•

10 T

FUNCTIONAL DESCRIPTION

The DDU224F-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. The nominal tap-to-

tap delay increment is given by 1/10 of the dash number. For dash

numbers less than 50, the total delay of the line is measured from T1 to

T10, with the nominal value given by 9 times the increment. The inherent delay from IN to T1 is nominally

3.5ns. For dash numbers greater than or equal to 50, the total delay of the line is measured from IN to

T10, with the nominal value given by the dash number.

SERIES SPECIFICATIONS

•

Minimum input pulse width: 20% of total delay

•

Output rise time: 2ns typical

•

Supply voltage:

5VDC

± 5%

•

Supply current:

•

Operating temperature: 0

° to 70° C

•

Temp. coefficient of total delay: 100 PPM/

°C

©

©1997 Data Delay Devices

data

delay

®

®

3

2 3 4 5 6 7 8

1

VCC

IN T1 T2 T3 T4 T5

GND

T6 T7 T8 T9 T10

N/C

9 10 11 12 13 14

DDU224F-xx Commercial

DDU224F-xxM

Military

PIN DESCRIPTIONS

IN

Signal Input

T1-T10 Tap Outputs

VCC

+5 Volts

GND

Ground

DASH NUMBER SPECIFICATIONS

Part

Number

Total

Delay (ns)

Delay Per

Tap (ns)

DDU224F-10

9

± 2.0 *

1.0

± 0.5

DDU224F-20

18

± 2.0 *

2.0

± 1.0

DDU224F-25

22.5

± 2.0 *

2.5

± 1.0

DDU224F-50

50

± 2.5

5.0

± 2.0

DDU224F-100

100

± 5.0

10.0

± 3.0

DDU224F-150

150

± 7.5

15.0

± 3.0

DDU224F-200

200

± 10.0

20.0

± 3.0

DDU224F-250

250

± 12.5

25.0

± 3.0

DDU224F-300

300

± 15.0

30.0

± 3.0

DDU224F-400

400

± 20.0

40.0

± 4.0

DDU224F-500

500

± 25.0

50.0

± 5.0

* Total delay is referenced to first tap output

Input to first tap = 3.5ns

±± 1ns

NOTE: Any dash number between 10 and 500 not

shown is also available.