Diagnosing Automotive Faults with Class D Audio Amplifiers(2)
2011年04月04日 09:11 www.delux-kingway.cn 作者：電子發(fā)燒友 用戶評(píng)論（0）
Three-State Procedure
To avoid unwanted click-and-pop at shutdown, use the following procedure (Figure 2):
- If the audio source is already muted, then go to step 4.
- Set the outputs to mute mode by setting CTRL2.MD23[1:0] = CTRL2.MD01[1:0] = 01.
- Wait at least 50ms to ensure no click-and-pop from a 20Hz signal.
- Three-state the outputs by setting CTRL2.MD23[1:0] = CTRL2.MD01[1:0] = 00.
Figure 2. Three-State procedure.
Shutdown Procedure
To avoid unwanted click-and-pop at shutdown, use the following procedure (Figure 3):
- Three-state the outputs by following the three-state procedure outlined above.
- Enter standby mode by setting CTRL2.STBY = 1.
- Pull the EN pin low.
Figure 3. Shutdown procedure.
- 第 1 頁(yè)：Diagnosing Automotive Faults with Class D Audio Amplifiers(1)
- 第 2 頁(yè)：Three-State Procedure#
- 第 3 頁(yè)：Load Diagnostics#
- 第 4 頁(yè)：Short-to-Ground Diagnostic Procedure#
- 第 5 頁(yè)：Open Load Detection#
- 第 6 頁(yè)：Shorted Load/Resistance Measurement Detection#
- 第 7 頁(yè)：Tweeter Detection#
- 第 8 頁(yè)：Continuous Diagnostics#
本文導(dǎo)航
非常好我支持^.^
(0) 0%
不好我反對(duì)
(0) 0%
相關(guān)閱讀：
- [新品快訊] 新唐科技推出emPowerAudio系列ISD810X音頻功放 2011-03-22
- [電子動(dòng)態(tài)] Wolfson推出高傳真音訊(HD Audio)新產(chǎn)品線 為PC和NB掀 2011-01-27
- [廠商新聞] 歐勝面向電腦和筆記本電腦推出高清晰度音頻( 2011-01-09
- [新品快訊] 歐勝微電子推出WM8958音頻中心(Audio Hub)解決 2010-11-08
- [模擬技術(shù)] High-efficiency Class D audio 2010-09-22
- [LED電路] 9個(gè)LED組成的音頻電平表電路, Audio VU mete 2010-03-28
- [模擬技術(shù)] TV audio amplifiers—thermal te 2010-03-03
- [新品快訊] ADI推出Audio Processor全系列提供多組的DA 2010-01-25
( 發(fā)表人：愛電路 )