- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385899 > TB2901H (Toshiba Corporation) Maximum Power 47 W BTL 】 4-ch Audio Power IC PDF資料下載
參數(shù)資料
| 型號： | TB2901H |
| 廠商： | Toshiba Corporation |
| 英文描述： | Maximum Power 47 W BTL 】 4-ch Audio Power IC |
| 中文描述： | 最大功率47糯橋接】4通道音頻功率IC |
| 文件頁數(shù)： | 4/17頁 |
| 文件大小： | 333K |
| 代理商： | TB2901H |
TB2901H
2002-11-06
4
3. Muting Function
(pin 22)
Audio muting function is enabled when pin 22 is Low. When the time constant of the muting function is
determined by R
1
and C
4,
it should take into account the pop noise. The pop noise which is generated when
the power or muting function is turned ON/OFF will vary according to the time constant. (Refer to Figure 4
and Figure 5.)
The pin 22 is designed to operate off 5 V.
Moreover, this terminal (pin 22) serves as the source switch of current of an internal mute circuit. And it is
designed so that the discharge current of this terminal (pin 22) may serve as 200 A. The outside pull-up
resistor R
1
is determind on the basic of this value.
ex) When control voltage is changed in to 6 V from 5 V.
6 V/5 V 47 k 56 k
To obtain enough mute attenuation, a series resistor, R
1
at pin 22 should be 47 k or more.
V
CC
Small current capacity switch
Battery
Stand-By
V
CC
From microcomputer
Battery
Stand-By
– Standby Switch Method –
Figure 3
– Conventional Method –
V
CC
Large current capacity switch
Battery
V
CC
From
microcomputer
Battery
Relay
Figure 5 Mute Attenuation V
MUTE
(V)
Pin 22 control voltage: VMUTE (V)
ATT – V
MUTE
M
Figure 4 Muting Function
0
120
100
80
60
40
20
0
20
0.5
1
1.5
2
2.5
3
VCC 13.2 V
f 1kHz
RL 4
VOUT 20dBm
22
1 k
R
1
5 V
Mute ON/OFF
control
C
4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TB2903HQ | Maximum Power 47W BTL x 4-ch Audio Power IC |
| TB2904HQ | Maximum Power 43 W BTL ?4-ch Audio Power IC |
| TB2913HQ | Maximum Power 47 W BTL 】 4-ch Audio Power IC |
| TB31206 | PLL FREQUENCY SYNTHESIZER |
| TB31206AFN | PLL FREQUENCY SYNTHESIZER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TB2901HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 47 W BTL 】 4-ch Audio Power IC |
| TB2902HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 41 W BTL × 4-ch Audio Power IC |
| TB2903HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 47W BTL x 4-ch Audio Power IC |
| TB2904HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 43 W BTL ?4-ch Audio Power IC |
| TB2905HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Class KB High-Efficiency, Low-Frequency Power Amplifier IC Maximum Power: 47 W x 4 Channels |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。