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參數(shù)資料
| 型號(hào)： | AN7195 |
| 廠商： | Panasonic Corporation |
| 英文描述： | Dual 15 W BTL power IC for car audio |
| 中文描述： | 雙15瓦橋接的汽車音響電源IC |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 102K |
| 代理商： | AN7195 |
AN7195K
ICs for Audio Common Use
10
I
Technical Information (continued)
[2] Application note (continued)
8. Mute Function
1) The mute-on/off is possible by making pin 7 (the muting terminal) high or low.
2) The muting circuit is as shown in figure 6. The amplifier gain including attenuator block is given in the
following equation :
I
1
×
50
I
2
Original gain
From the above equation, the amplifier gain can be made as 0 time by setting I
1
at 0 mA at muting.
3) The threshold voltage of V
MUTE
is as follows :
Mute-off: approx. 1 V or less
Mute-on : approx. 3 V or more
G
V
=
Figure 6
4) Attack time and recovery time can be changed by the external CR of pin 7. For recommended circuits (In
figure 6 4.7 k
,10
μ
F), the above mentioned times are as follows :
Attack time
: Approx. 30 ms
Recovery time : Approx. 40 ms
However, the control voltage of V
MUTE
is assumed to be 5 V. When it is not directly controlled by
microcomputer (5 V), (that is, 13.2 V separate power supply), it is necessary to change CR values because the
above times change.
5) When the attack time and recovery time are set at 20 ms or less, pay attention to the IC with larger output
offset because it may release the shock noise.
9. Voltage gain
The voltage gain is fixed at 40 dB and can not be changed by the addition of an external resistor.
5 k
7
4.7 k
5 V
0 V
10
μ
F
I
2
I
1
I
2
I
1
I
1
=
approx.120
μ
A
I
2
=
approx.120
μ
A
Output stage
Input
Output stage
Attenuator block
V
MUTE
Mute/off
Mute/on
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| AN7195K | Dual 15 W BTL power IC for car audio |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN7195K | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
| AN7195Z | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
| AN7196 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
| AN7196K | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
| AN7196Z | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
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