參數(shù)資料
型號(hào): QS7785CF
廠商: Seiko NPC Corporation
英文描述: 3D 2/4-Channel Stereo Surround Synthesizer
中文描述: 三維環(huán)繞立體聲合成2/4-Channel
文件頁數(shù): 12/15頁
文件大小: 185K
代理商: QS7785CF
QS7785PF/CF
NIPPON PRECISION CIRCUITS—12
Bass Boost
With a signal input connected to BASC1 and
BASC2, a bass boost function can be implemented.
When BASS is HIGH, resistors RA and RB and
capacitor C are connected to form a lowpass filter.
The lowpass filter signal and the original signal
(RIN, LIN) are combined to boost bass frequencies.
.
Bass boost connection (Gb = 6dB, f
C
= 300Hz)
36
37
RIN
/LIN
To Internal
RB:10k
R2:20k
R1:20k
C:0.15
μ
F
Close when BASS=H
Open when BASS=L
V
REFOUT
BASC1
/BASC2
+
RA=10k
Bass boost frequency response
G
b
0dB
f
L
f
H
Gain
Freq.
f
C
Gb=20 log
RA+RB
R1
(
)
1+
f
C
=
1+RR1
2
π
CRA RB
f
L
=f
C
10
f
H
=f
C
10
1+RR1
1+2
log
(
)
R1
2
1
1+RR1
1+2
log
(
)
R1
2
1
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