參數(shù)資料
型號(hào)： TDA7563A
廠(chǎng)商： STMICROELECTRONICS
元件分類(lèi)： 音頻／視頻放大
英文描述： 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM27
封裝： ROHS COMPLIANT, FLEXIWATT-27
文件頁(yè)數(shù)： 5/35頁(yè)
文件大?。?/td> 523K
代理商： TDA7563A
TDA7563A
Diagnostics functional description
3
Diagnostics functional description
3.1
Turn-on diagnostic
It is activated at the turn-on (standby out) under I2C bus request. Detectable output faults
are:
–
SHORT TO GND
–SHORT TO Vs
–
SHORT ACROSS THE SPEAKER
–
OPEN SPEAKER
To verify if any of the above misconnections are in place, a subsonic (inaudible) current
pulse (Figure 19) is internally generated, sent through the speaker(s) and sunk back.The
Turn On diagnostic status is internally stored until a successive diagnostic pulse is
requested (after a I2C reading).
If the "standby out" and "diagnostic enable" commands are both given through a single
programming step, the pulse takes place first (power stage still in standby mode, low,
outputs = high impedance).
Afterwards, when the amplifier is biased, the PERMANENT diagnostic takes place. The
previous Turn On state is kept until a short appears at the outputs.
Figure 19.
Turn-on diagnostic: working principle
Figure 20 and 21 show SVR and OUTPUT waveforms at the turn-on (standby out) with and
without TURN-ON DIAGNOSTIC.
CH-
CH+
Isource
Vs~5V
Isink
t (ms)
I (mA)
Isink
Isource
~100mS
Measure time
相關(guān)PDF資料
PDF描述
TDA7563BH 50 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27
TDA7563BPDTR 50 W, 4 CHANNEL, AUDIO AMPLIFIER, PDSO36
TDA7563BPD 50 W, 4 CHANNEL, AUDIO AMPLIFIER, PDSO36
TDA7563B 50 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27
TDA7563PDTR 46 W, 4 CHANNEL, AUDIO AMPLIFIER, PDSO36
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA7563AH 功能描述:音頻放大器 4 x 50W Multi Quad Power Amplifer D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7563APD 功能描述:音頻放大器 4 x 50W Multi Quad Power Amplifer D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7563APDTR 功能描述:音頻放大器 4x28V 4Ohm 14.4V High Eff Quad Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7563ASM 功能描述:音頻放大器 4 x 50W Multi Quad Power Amplifer D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA7563ASMTR 功能描述:音頻放大器 4 x 50W Multi Quad Power Amplifer D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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