參數(shù)資料
型號: HA12204NT
廠商: Hitachi,Ltd.
英文描述: Audio Signal Processor for Cassette Deck(音頻信號處理器)
中文描述: 音頻信號處理器卡座(音頻信號處理器)
文件頁數(shù): 12/97頁
文件大?。?/td> 579K
代理商: HA12204NT
HA12203NT/HA12204NT
12
The Sensitivity Adjustment of Music Sensor
Adjusting MS Amp gain by external resistor, the sensitivity of music sensor can set up.
PB (R)
PB (L)
MAI
–6dB
8.2k
25kHz
REP
LPF
+
100k
50k
V
CC
D V
CC
C17
1000p
R18
330k
C16
0.33
μ
R
L
MA
OUT
MSIN
MS OUT
MS
DET
MS AMP
+
DET
GND
GND
Microcomputer
Figure 4 Music Sensor Block Diagram
The Sensitivity of Music Sensor
Gv
f1 =
f2 = 25k [Hz]
[Hz]
1
2
π
· C17 · 50k
f1
f2
f
Figure 5 Frequency Characteristic of MSIN
Occasion of the external component of figure 4, f1 is 3.18 kHz.
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