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MB4206 Datasheet, PDF (2/7 Pages) Fujitsu Component Limited. – FREQUENCY-TO-VOLTAGE CONVERTER
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MB4206
Fig. 1 — MB4206 BLOCK DIAGRAM
V CC
1
5K
IN(F) 2
5.4V
Charge
Pump
-
+
5.4V
5.4V
4
3
6
7
TC
+IN(C)
VO(F) /-IN(C)
85
OUT(C) V R
VO(F)
FIG. 2 — TYPICAL HOOKUP AND OPERATING PARAMETERS
VCC
1
RIN
f IN
2
3
4
6
8
7
5
VO(C)
R3
CIN
CT
VO(F)
RT
R1
C0
R2
f IN
VO(C)
fL fH
f IN
2
The following equations define the operating
frequency of the comparator.
f
H
.=.
C
1
TR
T
R2
R2 +
R1 R3
R 1+ R 3
f
L
.=.
1
CT RT
R2 R3
R 1 R 2 +R 1 R 3 + R 2 R 3
R IN and C IN are needed when input noise is
excessive.
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