M61503 데이터 시트보기 (PDF) - Renesas Electronics
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M61503 Datasheet PDF : 14 Pages
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M61503FP
Function Description
(1) Equivalent Circuit of the Bass Boost
IN
R3
+
−
R2
9, 16
TONEL
C1
C2
R1
10, 15
OUT
1
Fo =
(Hz)
2π √ R1 (R2 + R3) C1 C2
1
Q≈
C1 + C2
C1 C2 R2
R1
(C1 = C2)
R2 + R3
+2
R1
Gv = 20log
(dB)
R3
+2
R1
R2, R3 (typical)
Bass boost
Resistor (k)
R2
R3
3 dB
15.4
30.6
6 dB
25.7
20.3
9 dB
32.9
13.1
12 dB
38.7
7.3
15 dB
41.6
4.4
18 dB
44.2
1.8
21 dB
46
0
(2) Equivalent Circuit of the Treble Boost
IN
+
OUT
1
−
Fc ≈
(Hz)
2π • R2 • C1
R1
R1 + { (R2 + Zc) // R3}
Gv = 20log
(dB)
(R2 + Zc) // R3
R3
R2
1
Zc =
(Ω)
jωC1
8, 17
TONEH
C1
REJ03F0214-0201 Rev.2.01 Mar 31, 2008
Page 11 of 13
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