参数资料
型号: TB2934HQ
元件分类: 音频/视频放大
英文描述: 41 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25
封装: 1 MM PITCH, PLASTIC, HZIP-25
文件页数: 34/39页
文件大小: 459K
代理商: TB2934HQ
TB2934HQ
2006-06-14
4
3.
Clip Detection
The output clip detection terminal, pin 4, has an open collector output structure on chip as shown in
Figure 3. In the case when the output waveform is clipping, the clip detection circuit is operated and the
NPN Tr. is turned on.
It is possible to improve the audio output quality by controlling the volume and/or tone control circuits
through a low pass filter (L.P.F) smoothing circuit as shown in Figure 3.
The sensitivity of the circuit to clipping level can be selected T.H.D.
= 2% or 10% via I2C bus.
In the event that this function is not used, pin4 should be left open circuit.
Clip detector
4
L.P.F.
smoothing
circuit
Volume control circuit
Tone control circuit
Output AC
waveform
Internal detection
circuit
Clip Det. 5 V
output
Waveform L.P.F
output
GND
Figure 3
Clip Detection
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