參數(shù)資料
型號： TA2160FNG
元件分類： 音頻／視頻放大
英文描述： 0.012 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO30
封裝： 0.300 INCH, 0.65 MM PITCH, PLASTIC, SSOP-30
文件頁數(shù)： 16/17頁
文件大?。?/td> 275K
代理商： TA2160FNG
TA2160FNG
2004-05-11
8
The transfer function of bass boost is as follows from Figure 3.
G (ω) = G1 (ω)A1G2 (ω)G3 (ω)A2
The bass boost effect is changed by external resistor or external capacitor. The transfer
function and cutoff frequency are as follows.
i
Transfer function of LPF
G1 (ω) = 1/(1 + jωC1R1)
fL = 1/2πC1R1
ii
Transfer function of BPF
G3 (ω) = jωC4R5/[1 + jω (R4C3 + R5C3 + C4R4) ω2R4C3R5C4]
C4
R5
C3
R4
1/2
fO
=
π
iii
HPF gain and ct of frequency
G2 (ω) = 1 + R2/(R3 + 1/jωC2)
fHC = 1/(2πR3C2)
C4
18
PWA
PWC
R
L
19
R5
22
k
21
C3
22
R4
= 22 k
BST
23
C2
R3
=2
k
R2
= 100 k
ATT
C1
24
2R1
22 k
2R1
22 k
8
11
G1 (ω)
LPF
G2 (ω)
HPF
A1
G3 (ω)
BPF
A2
Figure 3
Block Diagram of Bass Boost
Resp
o
n
s
e
(
d
B)
Frequency
f
(Hz)
3
10
100
400
BPF
20
10
0
10
20
30
LPF
HPF
Total characteristic
fO
fL
A
Ra
Ca
Cb
Rb
Figure 4
BPF
Graph 1
Characteristic of Bass Boost
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