参数资料
型号: TB2932HQ
元件分类: 音频/视频放大
英文描述: 45 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25
封装: 1 MM PITCH, PLASTIC, HZIP-25
文件页数: 4/30页
文件大小: 255K
代理商: TB2932HQ
TB2932HQ
2007-07-01
12
The output from the terminal of pin 4 can be changed from clip detector to offset detector output by
sending the write command via I2C.
If the L.P.F output voltage has become a half of pull up voltage for a while, firstly the signal output
volume goes down (cliping detector function). After that, it can be judged that the abnormal output
offset has occurred, if the L.P.F. output voltage does not rise above half of pull up voltage.
Offset detector
4
L.P.F.
smoothing
circuit
Volume control circuit
System shut down
Figure 9
Hardware Output Offset Detection
Vth
Output
waveform
Offset detector
output pin 4
Waveform
L.P.F output
Abnormal offset occured
Volume down
Judgement
Waiting time for Prevention
misjudgement
Detection delay time
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