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| 型号： | TA8221ALQ |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 |
| 封装： | PLASTIC, HSIP-17 |
| 文件页数： | 11/16页 |
| 文件大小： | 1259K |
| 代理商： | TA8221ALQ |
TA8221AHQ / ALQ
2006-04-28
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 temperature and the frequency.
The condenser (C6) between input and GND is effective for preventng oscillation which is generated with a
feedback signal from an output stage.
The resistance R to be series applied to C4 is effective for phase correction of high frequency, and improves 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 phaseinversion is caused by the high frequency resulting in making the oscillation liable generated.
4. Adjustment of output offset (when the power supply turn on)
As this IC is contructed with DC circuit on the primary stage, it is necessary to lower a input offset or output
offset by agreement with the each leading edge time constant of the input voltage in the primary stage and NF
terminal voltage.
Concretely, monitor the output DC voltage and vary the capacity value in input condenser and NF condenser (see
Fig.4)
(reference) In case of setting the condition (GV = 40dB) with Rf = 470.
相关PDF资料 |
PDF描述 |
|---|---|
| TA8221AHQ | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM17 |
| TA8221ALQ | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 |
| TA8221AL | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 |
| TA8221AH | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM17 |
| TA8221AL | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM17 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TA8223K | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:LOW FREQUENCY POWER AMPLIFIER |
| TA8224 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:MULTI OUTPUT VOLTAGE REGULATOR FOR CD PLAYER |
| TA8224H | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:MULTI OUTPUT VOLTAGE REGULATOR FOR CD PLAYER |
| TA8225 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:45W BTL AUDIO AMPLIFIER |
| TA8225H | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:45W BTL AUDIO AMPLIFIER |
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