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参数资料
| 型号： | TA8271H |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 24 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封装： | HZIP-25 |
| 文件页数： | 7/12页 |
| 文件大小： | 251K |
| 代理商： | TA8271H |
TA8271H
2002-02-13
4
3.
Muting Function (pin 22)
By means of controlling pin 22 less than 0.5 V, it can make the audio muting condition.
The muting time constant is decided by R1, C4 and C8 and these parts is related the pop noise at power
ON/OFF.
The series resistance; R1 must be set up less than 5 k.
The muting function have to be controlled by a transistor, FET and
-COM port which has IMUTE > 50
A ability.
– Conventional Method –
VCC
Large current capacity switch
BATTERY
VCC
FROM
MICROCOMPUTER
BATTERY
RELAY
VCC
Small current capacity switch
BATTERY
Stand-By
VCC
DIRECTLY FROM
MICROCOMPUTER
BATTERY
Stand-By
– Stand-by Switch Method –
Figure 3
Figure 5
Mute Attenuation
VMUTE (V)
Point A voltage: VMUTE (V)
ATT – VMUTE
Mut
e
a
tte
nu
ati
o
n
A
T
(dB
)
R1 = 2.2 k
R1 = 5 k
VCC = 13.2 V
Po = 10 W
RL = 4
f
= 1 kHz
100
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
80
60
40
30
20
0
10
90
70
50
Figure 4
Muting Function
R1
I (20
A)
22
IMUTE
IMUTE (OFF)
A
VMUTE
C
4
25
C
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TA8271HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Max Power 41 W BTL X 4 ch Audio Power IC |
| TA8272H | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Max Power 43 W BTL x 4 ch Audio Power IC |
| TA8273H | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic |
| TA8275 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Max Power 41 W BTL x 4 ch Audio Power IC |
| TA8275H | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Max Power 41 W BTL x 4 ch Audio Power IC |
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