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参数资料
| 型号： | TB2912HQ |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 27 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封装： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件页数： | 36/40页 |
| 文件大小： | 580K |
| 代理商： | TB2912HQ |
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TB2912HQ
2006-04-28
5
4.
External Component Values
Effect
Component
Name
Recommended
Value
Purpose
Lower than Recommended
Value
Higher than Recommended
Value
Notes
C1
0.22
F
To eliminate DC
Cut-off frequency becomes
higher
Cut-off frequency becomes
lower
Pop noise is
concerned with
this capacitor.
C2
10
F
To reduce ripple
To determine the
time of turn on
diag
Power ON/OFF time and turn
ON diag cycle shorter
Power ON/OFF time and turn
ON diag cycle longer
C3
0.1
F
To provide
sufficient
oscillation margin
Reduces noise and provides sufficient oscillation margin
C4
1
F
To reduce pop
noise
Pop noise becomes larger
Muting ON/OFF time is
shorter
Pop noise becomes smaller
Muting ON/OFF time is
longer
C5
3900
F
Ripple filter
Power supply ripple filtering
Note 3: In case of the recommended value not used.
5.
Fast Mute Mode
This feature will normally be used to suppress pop noise resulting from VCC transients during engine
cranking condition.
The fast mute mode can be entered on receipt of a command via I2C bus.
Using the IB2 register and setting to ‘one’ the bit D6, it is possible to generate a fast I2C mute command.
If a fast mute command is received, this IC will operate and will discharge the capacitor C4 at pin16.
Therefore the Pop sound will be reduced compared to the condition when Fast Mute is not used in the
engine cranking condition.
相关PDF资料 |
PDF描述 |
|---|---|
| TB2913HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2921AHQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2921HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2922HQ | 46 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM12 |
| TB2923AHQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TB2913HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Maximum Power 47 W BTL 】 4-ch Audio Power IC |
| TB2915AHQ(O) | 制造商:Toshiba America Electronic Components 功能描述:IC AMP BTL AUDIO 45W 4CH HZIP25 |
| TB2915HQ(O) | 功能描述:音频放大器 45W x 4-CH high-EFF car power amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TB2921HQ(O) | 功能描述:音频放大器 50W x 4-CH class-AB car power amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TB2922HQ | 制造商:Toshiba 功能描述:Pure complementary P-ch & N-ch DMOS output stage, BTL output form |
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