|
X9111_14 Datasheet, PDF (16/17 Pages) Intersil Corporation – Single Digitally-Controlled Potentiometer | |||
|
◁ |
Application Circuits (Continued)
X9111
Attenuator
VS
R1
R2
â
VS
+
VO
R3
R4 R1 = R2 = R3 = R4 = 10kâ¦
Filter
C
+
â
R
R1
VO
R2
VO = G VS
-1/2 ⤠G ⤠+1/2
GO = 1 + R2/R1
fc = 1/(2ÏRC)
Inverting Amplifier
R1 R2
VS
â
+
VO
VO = G VS
G = - R2/R1
Equivalent L-R Circuit
C1
VS
ZIN
R2
+
â
R1
R3
Function Generator
ZIN = R2 + s R2 (R1 + R3) C1 = R2 + s Leq
(R1 + R3) >> R2
C
â
R2
R1
â
+
} RA
+
} RB
frequency â R1, R2, C
amplitude â RA, RB
16
FN8159.4
September 15, 2006
|
▷ |