X9319WS8IZ datasheet(5/10 Pages) INTERSIL

Part #	X9319WS8IZ

Description	Digitally Controlled Potentiometer

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Manufacturer	INTERSIL [Intersil Corporation]

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5 / 10 page

5

FN8185.1

September 14, 2005

A.C. OPERATING CHARACTERISTICS

(VCC = 5V ±10%, TA = Full Operating Temperature Range unless otherwise stated)

POWER-UP AND DOWN REQUIREMENTS

In order to prevent unwanted tap position changes, or an inadvertant store, bring the CS and INC high before or con-

currently with the VCC pin on powerup. The potentiometer voltages must be applied after this sequence is completed.

During power-up, the data sheet parameters for the DCP do not fully apply until 1 millisecond after VCC reaches its

final value. The VCC ramp spec is always in effect.

A.C. TIMING

Symbol

Parameter

Limits

Unit

Min.

Typ.(4)

Max.

tCl

CS to INC setup

100

ns

tlD(5)

INC HIGH to U/D change

100

ns

tDI(5)

U/D to INC setup

1

µs

tlL

INC LOW period

1

µs

tlH

INC HIGH period

1

µs

tlC

INC inactive to CS inactive

1

µs

tCPHS

CS deselect time (STORE)

20

ms

tCPHNS(5) CS deselect time (NO STORE)

1

µs

tIW(5)

INC to RW change

100

500

µs

tCYC

INC cycle time

4

µs

tR, tF(5)

INC input rise and fall time

500

µs

tPU(5)

Power-up to wiper stable

500

µs

tR VCC(5)

VCC power-up rate

0.2

50

V/ms

CS

INC

U/D

RW

tCI

tIL

tIH

tCYC

tID

tDI

tIW

MI

(3)

tIC

tCPHS

tF

tR

10%

90%

tCPHNS

X9319

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