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071700

FEATURES

All-silicon time delay

Two programmable outputs from a single

input produce output-to-output delays

between 9 and 84 ns depending on device

type

Programmable via four input pins

Programmable increments of 3 to 5 ns with a

minimum of 9 ns and a maximum of 84 ns

Output pulse is a reproduction of input pulse

after

Delay with both leading and trailing edge

accuracy

Standard 16-pin DIP or surface mount 16-pin

SOIC

Auto-insertable

Low-power CMOS design is TTL-compatible

PIN ASSIGNMENT

PIN DESCRIPTION

IN

- Delay Line Input

OUTA, OUTB

- Delay Line Outputs

A0-A3

- Parallel Program Inputs

for OUT1

B0-B3

- Parallel Program Inputs

for OUT2

EA

- Enable A and B Inputs

- +5V Input

GND

- Ground

DESCRIPTION

The DS1045 is a programmable silicon delay line having one input and two 4-bit programmable delay

outputs. Each 4-bit programmable output offers the user 16 possible delay values to select from, starting

with a minimum inherent DS1045 delay of 9 ns and a maximum achievable delay in the standard DS1045

family of 84 ns. The standard DS1045 product line provides the user with three devices having uniform

delay increments of 3, 4, and 5 ns, depending on the device. Table 1 presents standard device family and

delay capability. Additionally, custom delay increments are available for special order through Dallas

Semiconductor.

The DS1045 is TTL and CMOS-compatible and capable of driving ten 74LS-type loads. The output

produced by the DS1045 is both rising and falling edge precise.

The DS1045 programmable silicon

delay line has been designed as a reliable, economic alternative to hybrid programmable delay lines. It is

offered in a standard 16-pin auto-insertable DIP and a space-saving surface mount 16-pin SOIC package.

DS1045

4-Bit Dual Programmable Delay Line

www.dalsemi.com

IN

EA

A0

A1

A2

A3

GND

EB

OUTB

B0

B1

B2

B3

OUTA

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

IN

16

1

EA

A0

A1

A2

A3

GND

EB

OUTB

B0

B1

B2

B3

OUTA

2

3

4

5

6

7

8

15

14

13

12

11

10

9

DS1045 16-Pin DIP

See Mech. Drawings

Section

DS1045S 16-Pin SOIC (300-mil)

See Mech. Drawings

Section