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參數(shù)資料
| 型號： | TDA9556 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PZIP11 |
| 封裝： | PLASTIC, CLIPWATT-11 |
| 文件頁數(shù)： | 9/22頁 |
| 文件大?。?/td> | 315K |
| 代理商： | TDA9556 |
TDA9556
17/22
10.8
Conclusion
Video response is always a compromise between several parameters. For example, the rise/fall time
improvement leads to the overshoot deterioration.
The recommended way to optimize the video response is:
1
To set R10+R11 for arcing protection (min. 250
)
2. To adjust R20 and R10+R11.
Increasing their value increases the
tR/tF values and decrease the overshoot
3. To adjust L1
Increasing L1 speeds up the device and increases the overshoot.
4. To adjust the input network for the final dynamic tunning (e.g.: critical damping)
We recommend our customers to use the schematic shown on Figure 22 as a starting point for the video
board and then to apply the optimization they need.
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