參數(shù)資料
型號(hào): M615XXFP
廠商: Mitsubishi Electric Corporation
英文描述: Digital controlled Sound Controller
中文描述: 數(shù)字控制的聲音控制器
文件頁(yè)數(shù): 12/16頁(yè)
文件大小: 383K
代理商: M615XXFP
MITSUBISHI SOUND PROCESSORS
M615XXFP
Digital controlled Sound Controller
MITSUBISHI
ELECTRIC
( 12
D-61502Q-97I
16
(4)Bass Boost circuit
Positive feedback 2 order HPF circuit
R1
+k
C2
C1
R2
f0
Q=4 (G=10dB)
G0
0dB
VIN
VOUT
VIN
VOUT
=
Ks2
s2
1
R2C1
R2C2
+(1-K)
+
R1C1
1
1
+
R1R2C1C2
1
2 order HPF Gain Characteristic (ex.)
Q
g0
1
2
4
5
10
dB
dB
dB
dB
dB
SEL
OUTPUT
INPUT
ω
02=
R1R2C1C2
1
Q=
1
R2C2
R1C1
R2C1
R1C2
R1C1
R2C2
+(1-K)
+
0 to 1
6
10
13
20
Bass boost consist of positive feedback 2 order HPF circuit
Method of calculation indicate below.
In this condition
Fc=70Hz,Q=4
0=2
π
x70Hz, Q=4
In this condition
C1=C2=Cf=0.1
μ
F,
from (1), (2), (3)
Rf=22.7 K
R1 = 2.84K
R2 = 182 K
R1, R2= about 3.0K
, 200K
C1 = C2 = Cf , K = +1
calculated
Rf = 1/((
ω
0Cf)
(1)
R1 = Rf/2Q
(2)
R2 = 2QRf
(3)
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