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參數(shù)資料
| 型號(hào)： | TLE4925C |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PSSS3 |
| 封裝： | PLASTIC, SSO-3 |
| 文件頁數(shù)： | 23/28頁 |
| 文件大小： | 1066K |
| 代理商： | TLE4925C |
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Data Sheet
Page 4 of 28
10/02/2005
Running mode:
In running mode the output is triggered by the comparator. An offset cancellation
feedback loop is formed by the A/D converter, dsp and offset cancellation D/A
converter. In running mode switching always occurs at zero-crossing. It is only
affected by the (small) remaining offset of the comparator and by the remaining
propagation delay time of the signal path, mainly determined by the noise-
shaping filter. Nevertheless signals below a defined threshold are not detected to
avoid unwanted parasitic switching.
Figure 3: Startup of the device
At transition from startup-mode to running mode switching timing is moving
from low-accuracy to high accuracy zero-crossing.
startup-mode
running-mode
offset
peak
detection
offset= (max + min) / 2
offset
correction
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