LTC6930 datasheet(15/28 Pages) AD

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LTC6994-1/LTC6994-2

Rev. C

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OPERATION

LTC6994-2 Functionality

Figures 5 details the basic operation of the LTC6994-2

when configured for noninverting operation (POL = 0). As

before, a rising edge on the IN pin initiates the timing and,

if IN remains high, OUT will transition high after tDELAY.

UnliketheLTC6994-1,fallingedgesaredelayedinthesame

way. When IN transitions low, OUT will follow after tDELAY.

If the input doesn’t remain high or low long enough for

OUT to follow, the timing will restart on the next transition.

Also unlike the LTC6994-1, the output pulse width can

never be less than tDELAY. Therefore, the LTC6994-2 can

generate pulses with a defined minimum width.

Figure 6 details the operation of the LTC6994-2 when the

output is inverted (POL = 1).

Figure 5. Both Edges Delayed Timing Diagram (LTC6994-2, POL = 0)

Figure 6. Both Edges Delayed (Inverting) Timing Diagram (LTC6994-2, POL = 1)

OUT

tDELAY

tPD

tWIDTH

tPD

tDELAY

tPD

tDELAY

699412 F05

OUT

tDELAY

tPD

tWIDTH

tDELAY

699412 F06

LTC6930 Datasheet(PDF) 15 Page - Analog Devices