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| 型号： | TA8215L |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 18 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 |
| 封装： | HSIP-17 |
| 文件页数： | 7/12页 |
| 文件大小： | 1005K |
| 代理商： | TA8215L |
TA8215H / L
2002-10-30
4
3. Preventive measure against oscillation
For preventing the oscillation, it is advisable to use C4, the condenser of polyester film having small
characteristic fluctuation of the temperture and the frequency.
The resistance R to be series applied to C4 is effective for phase correction of high frequency, and improves the
oscillation allowance.
Since the oscillation allowance is varied according to the causes described below, perform the temperature test to
check the oscillation allowance.
(1) Voltage gain to be used (GV setting)
(2) Capacity value of condenser
(3) Kind of condenser
(4) Layout of printed board
In case of its use with the voltage gain GV reduced or with the feedback amount increased, care must be taken
because the phase-inversion is caused by the high frequency resulting in making the oscillation liable generated.
4. Input offset prevention circuit at VCC→ON
Having Pre-Amp (Amp1) mounted on the primary stage, this IC contains the circuit for making the Amp1 input
voltage and the NF terminal voltage equipotential.
Therefore, the offset voltage produced at the input stage is suppressed to prevent the pop noise at VCC→ON. The
capacity values of the input and NF condense (C1 and C2) shall be set according to the gain to be used.
(Reference) (A) at GV = 50dB (Rf = 0) : C1 = 4.7F, C2 = 47F
(B) at GV = 40dB (Rf = 470) : C1 = 3.3F, C2 = 33F
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相关代理商/技术参数 |
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| TA8215LQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:18W BTL 】 2CH Audio Power Amplifier |
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| TA8216H_02 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Dual Audio Power Amplifier |
| TA8216HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Dual Audio Power Amplifier |
| TA8216HQ(5) | 功能描述:音频放大器 13W x 2ch Gen 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 |
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