PDU17F

Doc #97005

DATA DELAY DEVICES, INC.

1

1/14/97

3 Mt. Prospect Ave. Clifton, NJ 07013

7-BIT PROGRAMMABLE

DELAY LINE

(SERIES PDU17F)

FEATURES

PACKAGES

•

Digitally programmable in 128 delay steps

•

Monotonic delay-versus-address variation

•

Two separate outputs: inverting & non-inverting

•

Precise and stable delays

•

Input & outputs fully TTL interfaced & buffered

•

10 T

•

Fits standard 40-pin DIP socket

•

Auto-insertable

FUNCTIONAL DESCRIPTION

The PDU17F-series device is a 7-bit digitally programmable delay line.

depends on the address code (A6-A0) according to the following formula:

specified by the dash number of the device and can range from 0.5ns through 10ns, inclusively. The

enable pins (EN/) are held LOW during normal operation. These pins must always be in the same state

and may be tied together externally. When these signals are brought HIGH, OUT and OUT/ are forced

into LOW and HIGH states, respectively. The address is not latched and must remain asserted during

normal operation.

SERIES SPECIFICATIONS

•

Programmed delay tolerance: 5% or 2ns,

whichever is greater

•

12ns typical (OUT/)

•

Setup time and propagation delay:

10ns

•

Operating temperature: 0

° to 70° C

•

Temperature coefficient: 100PPM/

°C (excludes TD

•

± 5%

•

Supply current:

•

Minimum pulse width: 8% of total delay

©

©1997 Data Delay Devices

data

delay

®

®

3

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

N/C

OUT/

OUT

EN/

GND

N/C

N/C

N/C

GND

N/C

N/C

N/C

N/C

GND

N/C

EN/

N/C

IN

N/C

GND

VCC

N/C

A0

A1

A2

VCC

N/C

A3

A4

A5

VCC

N/C

N/C

N/C

N/C

VCC

N/C

A6

N/C

N/C

PDU17F-xx

DIP

PDU17F-xxC5

Gull-Wing

PDU17F-xxM

Military DIP

PDU17F-xxMC5

Military Gull-Wing

PIN DESCRIPTIONS

IN

Delay Line Input

OUT

Non-inverted Output

OUT/ Inverted Output

A0-A6 Address Bits

EN/

Output Enable

VCC

+5 Volts

GND Ground

DASH NUMBER SPECIFICATIONS

Part

Number

Incremental Delay

Per Step (ns)

Total Delay

Change (ns)

PDU17F-.5

.5

± .3

63.5

± 3.2

PDU17F-1

1

± .5

127

± 6.4

PDU17F-2

2

± .5

254

± 12.7

PDU17F-3

3

± 1.0

381

± 19.1

PDU17F-4

4

± 1.0

508

± 25.4

PDU17F-5

5

± 1.5

635

± 31.8

PDU17F-6

6

± 1.5

762

± 38.1

PDU17F-8

8

± 2.0

1,016

± 50.8

PDU17F-10

10

± 2.0

1,270

± 63.5

NOTE: Any dash number between .5 and 10 not

shown is also available.