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參數(shù)資料
| 型號： | AN7191NZ |
| 廠商： | PANASONIC CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Dual 20 W BTL audio power amplifier |
| 中文描述： | 24 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封裝： | ZFM-15 |
| 文件頁數(shù)： | 16/16頁 |
| 文件大?。?/td> | 146K |
| 代理商： | AN7191NZ |
16
AN7191NZ
ICs for Audio Common Use
I
Technical Information (continued)
[2] Application note (continued)
11. Two IC use (continued)
1) Supply terminal
Short-circuiting each other, insert an electrolytic capacitor of approx. 2 200
μ
F into the supply terminals.
However, if sufficient characteristics of the ripple rejection can not be obtained, use an even larger capacitor
or insert a 2 200
μ
F capacitor into each IC.
The best sound quality can be obtained by inserting a 2 200
μ
F capacitor near the terminal of each IC.
2) Standby terminal (pin 5)
The connection of standby terminals with each other does not result in an abnormal operation. Connect with
the microcomputer after connecting the standby pins with each other. At that time, the current flowing into the
standby terminal is twice larger the current which is described in 1. Standby function.
3) Muting terminal (pin 7)
It does not result in the abnormal operation even if the muting terminals are short-circuited with each other.
The muting time constant changes when two ICs connection is made. If the CR constants are set at twice
and 1/2 time respectively, the time constant value becomes as same as the value when 1 IC is used.
4) Beep sound input terminal (pin 10)
Short-circuit between the beep sound input terminals does not result in an abnormal operation.
However, if there is a temperature difference between ICs, there may be a fluctuation of the output offset.
In order to avoid such a phenomenon, connect the ICs with each other through a resistor (47 k
).
5) Ripple filter terminal (pin 12)
Short-circuit between ripple filter terminals does not result in an abnormal operation.
However, if the standby of each IC is individually controlled, the short-circuiting is not allowed. Use the
circuit after connecting a capacitor (33
μ
F) to each IC.
I
Application Circuit Example
3
4
2
14
13
1
1
8
B
C
C
R
S
M
1
6
5
7
1
9
15
Ch.1 GND
Ch.2 GND
Ch.1 out (
)
Ch.1 out (
+
)
Ch.2 out (
)
Ch.2 out (
+
)
V
C
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相關(guān)代理商/技術(shù)參數(shù) |
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| AN7194 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual BTL 50 W single power supply class-H power amplifier IC |
| AN7194K | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual BTL 50 W single power supply class-H power amplifier IC |
| AN7194Z | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual BTL 50 W single power supply class-H power amplifier IC |
| AN7195 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Dual 15 W BTL power IC for car audio |
| 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 |
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