DDU8C3

Doc #00115

DATA DELAY DEVICES, INC.

1

5/19/00

3 Mt. Prospect Ave. Clifton, NJ 07013

5-TAP, 3.3V CMOS-INTERFACED

FIXED DELAY LINE

(SERIES DDU8C3)

FEATURES

PACKAGES

•

Five equally spaced outputs

•

Fits standard 8-pin DIP socket

•

Low profile

•

Auto-insertable

•

Input & outputs fully CMOS interfaced & buffered

•

10 T

FUNCTIONAL DESCRIPTION

The DDU8C3-series device is a 5-tap digitally buffered delay line. The

signal input (IN) is reproduced at the outputs (T1-T5), shifted in time by an

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

numbers 5020 and above, the total delay of the line is measured from IN to

T5, and the nominal tap-to-tap delay increment is given by one-fifth of the

total delay. For dash numbers below 5020, the total delay is measured from T1 to T5, and the delay

increment is given by one-fourth of the total delay.

SERIES SPECIFICATIONS

•

Minimum input pulse width: 40% of total delay

•

Output rise time: 2ns typical

•

Supply voltage:

3.3VDC

± 0.3V

•

Supply current:

µa typical

•

Operating temperature: -40

° to 85° C

•

Temp. coefficient of total delay: 300 PPM/

°C

25%

25%

25%

25%

VDD

GND

IN

T1

T2

T3

T4

T5

Functional diagram for dash numbers < 5020

3.0ns

20%

20%

20%

20%

20%

VDD

GND

IN

T1

T2

T3

T4

T5

Functional diagram for dash numbers >= 5020

©

©2000 Data Delay Devices

data

delay

®

®

3

8

7

6

5

1

2

3

4

IN

T2

T4

GND

VDD

T1

T3

T5

DDU8C3-xx

DIP

DDU8C3-xxA1 Gull-Wing

PIN DESCRIPTIONS

IN

Signal Input

T1-T5 Tap Outputs

VDD

+3.3 Volts

GND

Ground

DASH NUMBER SPECIFICATIONS

Part

Number

Total

Delay (ns)

Delay Per

Tap (ns)

DDU8C3-5004

4

± 1.0 *

1.0

± 0.5

DDU8C3-5006

6

± 1.0 *

1.5

± 0.5

DDU8C3-5008

8

± 2.0 *

2.0

± 1.0

DDU8C3-5010

10

± 2.0 *

2.5

± 1.0

DDU8C3-5012

12

± 2.0 *

3.0

± 1.0

DDU8C3-5014

14

± 2.0 *

3.5

± 1.0

DDU8C3-5020

20

± 2.0

4.0

± 1.0

DDU8C3-5025

25

± 2.0

5.0

± 1.5

DDU8C3-5030

30

± 2.0

6.0

± 1.5

DDU8C3-5035

35

± 2.0

7.0

± 1.8

DDU8C3-5040

40

± 2.0

8.0

± 2.0

DDU8C3-5045

45

± 2.25

9.0

± 2.0

DDU8C3-5050

50

± 2.5

10.0

± 2.0

DDU8C3-5060

60

± 3.0

12.0

± 2.0

DDU8C3-5075

75

± 3.75

15.0

± 2.5

DDU8C3-5100

100

± 5.0

20.0

± 3.0

DDU8C3-5125

125

± 6.5

25.0

± 3.0

DDU8C3-5150

150

± 7.5

30.0

± 3.0

DDU8C3-5175

175

± 8.0

35.0

± 4.0

DDU8C3-5200

200

± 10.0

40.0

± 4.0

DDU8C3-5250

250

± 12.5

50.0

± 5.0

* Total delay is referenced to first tap output

Input to first tap = 3.0ns

±± 1ns

NOTE: Any dash number between 5004 and 5250

not shown is also available.