MC13020P データシートの表示（PDF） - Motorola => Freescale
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MC13020P Datasheet PDF : 6 Pages
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0
FIGURE 5 — CERAMIC VCO
5.0
,
20 19 lE
~ 4.5 --% :;?
17
mu Rata
CSA3.60M~
,4
b
‘
FIGURE 6 — L – C VCO
1I
I
I
z:
%
I
.
FIGURE 7 — CRYSTAL VCO
?:.- .ti,.,,,,,
.~@@;E 8 – ACTIVE BAND-PASS FILTER
0
3,5
>
0
vr~f
Q
Rc=~
Rc
Ra=~
Ra Rc
‘b ‘4QZRa– Rc
where, in this application:
f. = center frequency = 25 Hz
A. = gain at fo<25
Q<1O
Choose values for fo, Ao, Q, and
convenient C, solve for
resiatora
0.47 PF
4.7 k
910
220 k
0.33 PF
8.2 k
1.3 k
330 k
Note: Capacitor C should be a good grsda, low ESR.
M070ROLA
@
Semiconductor Products Inc.
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