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参数资料
| 型号： | TS489IQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.13 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封装： | 2 X 2 MM, DFN-8 |
| 文件页数： | 20/32页 |
| 文件大小： | 570K |
| 代理商： | TS489IQT |
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TS488-TS489
Application information
27/32
With the values above, the result is FCL=25Hz.
In this case,
τ in = Rin xCin=6.6ms.
This value is sufficient with regard to the previous formula, thus we can state that the pop is
imperceptible.
Connecting the headphones
Generally headphones are connected using jack connectors. To prevent a pop in the
headphones when plugging in the jack, a pulldown resistor should be connected in parallel
with each headphone output. This allows the capacitors Cout to be charged even when the
headphones are not plugged in.
Pulldown resistors with a value of 1 k
Ω are high enough to be a negligible load, and low
enough to charge the capacitors Cout in less than one second.
Note:
The pop&click reduction circuitry works properly only when both channels have the same
value for the external components Cin, Cout, Rload and Rpulldown.
相关PDF资料 |
PDF描述 |
|---|---|
| TS489IST | 0.13 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TS4890IDT | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TS4890ID | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TS4890IST | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TS4890IQT | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS489IST | 功能描述:音频放大器 Popfree 100mW stereo headphone 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 |
| TS4900 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH |
| TS4900ID | 功能描述:音频放大器 300mW Audio Pwr 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 |
| TS4900IDT | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH |
| TS4900IS | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:300mW at 3.3V SUPPLY AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH |
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