1 of 16

070505

FEATURES

§ Step sizes of 0.25 ns, 0.5 ns, 1 ns, 2 ns, 5 ns

§ On-chip reference delay

§ Configurable as delay line, pulse width

modulator, or free-running oscillator

§ Can delay clocks by a full period or more

§ Guaranteed monotonicity

§ Parallel or serial programming

§ Single 5V supply

§ 16-pin DIP or SOIC package

PIN ASSIGNMENT

PIN DESCRIPTION

IN

- Input

P0/Q

- Parallel Input P0 (parallel mode)

- Serial Data Output (serial mode)

P1/CLK

- Parallel Input P1 (parallel mode)

- Serial Input Clock (serial mode)

P2/D

- Parallel Input P2 (parallel mode)

- Serial Data Input (serial mode)

P3 - P7

- Remaining Parallel Inputs

GND

- Ground

- Output

REF/PWM

- Reference or PWM Output

P

/S

- Parallel / Serial Programming

Select

MS

- Output Mode Select

LE

- Input Latch Enable

- Supply Voltage

DESCRIPTION

The DS1023 is an 8-bit programmable delay line similar in function to the DS1020/DS1021.

Additional features have been added to extend the range of applications:

The internal delay line architecture has been revised to allow clock signals to be delayed by up to a full

period or more. Combined with an on-chip reference delay (to offset the inherent or “step zero” delay of

the device) clock phase can now be varied over the full 0-360 degree range.

DS1023

8-Bit Programmable Timing Element

www.maxim-ic.com

IN

LE

Q/P0

CLK/P1

D/P2

P3

P4

GND

16

15

14

13

12

11

10

9

OUT/OUT

REF/PWM

P/S

P7

P6

MS

P5

1

2

3

4

5

6

7

8

DS1023 300-mil DIP

DS1023S 300-mil SOIC