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參數(shù)資料
| 型號： | TB2913HQ |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封裝： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大小： | 400K |
| 代理商： | TB2913HQ |
TB2913HQ(o)
2006-04-28
5
4.
Output Clip Detection Function (pin 25)
The output clip detection terminal of pin 25 has the open collector output structure on chip as shown in
Figure 6. In case that the output waveform is clipping, the clip detection circuit is operated and NPN Tr. is
turned on.
It is possible to improve the audio quality with controlling the volume, tone control circuit through L.P.F.
smoothing circuit as shown in Figure 7.
In case of being unused this function, use this IC as open connection on pin 25.
(A)
5 V
t
AC
(A) Output (AC wave form)
(B)
t
DC
(B) Clip Detector Circuit
(internal)
(C)
t
DC
(B) Clip Detector Terminal
(pin 25)
GND
Figure 7
Clip Detection
Figure 6
pin 25: Open collector output (active low)
OUTPUT CLIP
DETECTOR
25
5 V
L.P.F.
SMOOTHING
CIRCUIT
VOLUME CONTROL CIRCUIT
TONE CONTROL CIRCUIT
(Application)
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