FUNCTIONAL BLOCK DIAGRAM

REV. A

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a

Digitally Programmable

Delay Generator

AD9501

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

FEATURES

Single +5 V Supply

TTL and CMOS Compatible

10 ps Delay Resolution

2.5 ns to 10

s Full-Scale Range

Maximum Trigger Rate 50 MHz

MIL-STD-883-Compliant Versions Available

APPLICATIONS

Disk Drive Deskewing

Data Communications

Test Equipment

Radar I & Q Matching

GENERAL DESCRIPTION

The AD9501 is a digitally programmable delay generator which

provides programmed time delays of an input pulse. Operating

from a single +5 V supply, the AD9501 is TTL- or CMOS-

compatible, and is capable of providing accurate timing adjust-

ments with resolutions as low as 10 ps. Its accuracy and

programmability make it ideal for use in data deskewing and

pulse delay applications, as well as clock timing adjustments.

Full-scale delay range is set by the combination of an external

resistor and capacitor, and can range from 2.5 ns to 10

µs for a

single AD9501. An eight-bit digital word selects a time delay

within the full-scale range. When triggered by the rising edge of

an input pulse, the output of the AD9501 will be delayed by an

The AD9501 is available for a commercial temperature range of

0

°C to +70°C in a 20-pin plastic DIP, 20-pin ceramic DIP, and

a 20-lead plastic leaded chip carrier (PLCC). Devices fully

compliant to MIL-STD-883 are available in ceramic DIPs.

Refer to the Analog Devices Military Products Databook or current

AD9501/883B data sheet for detailed specifications.