X9409_15 Datasheet, PDF(16/19 Page) Intersil Corporation – Low Noise/Low Power/2-Wire Bus Quad Digita Controlled Potentiometers

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X9409_15 Datasheet, PDF (16/19 Pages) Intersil Corporation – Low Noise/Low Power/2-Wire Bus Quad Digita Controlled Potentiometers

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Application Circuits (Continued)

X9409

All RS = 10kÎ©

VO = G VS

-1/2 ï£ G ï£ +1/2

FIGURE 19. ATTENUATOR

GO = 1 + R2/R1

fc = 1/(2ï°RC)

FIGURE 20. FILTER

VO = G VS

G = - R2/R1

FIGURE 21. INVERTING AMPLIFIER

ZIN

ZIN = R2 + s R2 (R1 + R3) C1 = R2 + s Leq

(R1 + R3) >> R2

FIGURE 22. EQUIVALENT L-R CIRCUIT

} RA

} RB

frequency ïµ R1, R2, C

amplitude ïµ RA, RB

FIGURE 23. FUNCTION GENERATOR

Submit Document Feedback 16

FN8192.6

September 3, 2015

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