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參數(shù)資料
| 型號： | LA2650 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Bass Boost IC |
| 中文描述： | 低音增強集成電路 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 319K |
| 代理商： | LA2650 |
External Components
C
1
, C
15
(0.22 to 10 μF)
Input coupling capacitor.
Note that the low-frequency gain is reduced at lower capacitances.
The value of these capacitors determines the extreme low-frequency cutoff.
C
2
(0.22 to 2.2 μF)
Boost on/of switching circuit smoothing capacitor.
The on/off switching time can be adjusted by changing the value of this capacitor. However, note that if the value is
lowered excessively, switching noise (spikes) may appear.
C
3
(10 to 220 μF)
Detection capacitor.
The attack and recover times can be adjusted by changing the value of this capacitor.
C
4
, C
5
, C
6
(0.22 to 10 μF)
Output coupling capacitors.
C
7
, C
8
, C
11
, C
14
Low boost LPF capacitors.
The low boost curve can be adjusted by changing the values of these capacitors. These capacitors may be omitted or,
inversely, secondary or tertiary structures may be used.
C
9
(22 to 220 μF)
Power supply capacitor.
C
10
(1.0 to 22 μF)
VCA NF capacitor.
Note that lowering the value of this capacitor will lower the low-frequency boost.
This capacitor determines the extreme low-frequency cutoff.
C
12
(1.0 to 22 μF)
DC cut capacitor
Note that lowering the value of this capacitor will lower the low-frequency boost.
This capacitor determines the extreme low-frequency cutoff.
C
13
(1.0 to 22 μF)
RF reference LPF capacitor.
The RF SVRR can be modified by changing the value of this capacitor.
R
1
(200 k
to 3.9 M
)
Detection recovery time adjustment (discharge resistor)
Note that the total harmonic distortion is increased as the value of this resistor is reduced.
R
2
(0 to 1 k
)
LED current adjustment.
LED current
≈
(V
CC
– V
LED
– 0.9)/(R
2
+ 300)
The maximum LED current is 20 mA.
No. 5652-8/13
LA2650
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