參數(shù)資料
型號(hào)： TDA7562
廠(chǎng)商： STMICROELECTRONICS
元件分類(lèi)： 音頻／視頻放大
英文描述： 38 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27
封裝： FLEXIWATT-27
文件頁(yè)數(shù)： 17/17頁(yè)
文件大?。?/td> 202K
代理商： TDA7562
9/17
TDA7562
As for SHORT TO GND / Vs the fault-detection thresholds remain unchanged from 30 dB to 16 dB gain setting.
They are as follows:
Concerning SHORT ACROSS THE SPEAKER , the threshold varies from 30 dB to 16 dB gain setting, since
different loads are expected (either normal speaker's impedance or high impedance). The values in case of 30
dB gain are as follows:
If the Line-Driver mode (Gv= 16 dB and Line Driver Mode diagnostic = 1) is selected, the same thresholds will
change as follows:
OUTPUT DC OFFSET DETECTION
Any DC output offset exceeding ± 2V are signalled out. This inconvenient might occur as a consequence of ini-
tially defective or aged and worn-out input capacitors feeding a DC component to the inputs, so putting the
speakers at risk of overheating.
This diagnostic has to be performed with low-level output AC signal (or Vin = 0).
The test is run with selectable time duration by microprocessor (from a "start" to a "stop" command):
– START = Last reading operation or setting IB1 - D5 - (OFFSET enable) to 1
– STOP = Actual reading operation
Excess offset is signalled out if persistent throughout the assigned testing time. This feature is disabled if any
overloads leading to activation of the short-circuit protection occurs in the process.
MULTIPLE FAULTS
When more misconnections are simultaneously in place at the audio outputs, it is guaranteed that at least one
of them is initially read out. The others are notified after successive cycles of I2C reading and faults removal,
provided that the diagnostic is enabled.
The table below shows all the couples of double-fault possible. It should be taken into account that a short circuit
D01AU1253
S.C. to GND
x
S.C. to Vs
0V
1.8V
VS-1.8V
VS
x
Normal Operation
1.2V
VS-1.2V
S.C. across Load
x
0V
1.5
Infinite
Normal Operation
0.5
D01AU1254mod
D01AU1252mod
S.C. across Load
x
0
4.5
infinite
Normal Operation
1.5
相關(guān)PDF資料
PDF描述
TDA7563AH 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM27
TDA7563APD 50 W, 4 CHANNEL, AUDIO AMPLIFIER, PDSO36
TDA7563ASMTR 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM27
TDA7563ASM 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM27
TDA7563A 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM27
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA7562B 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
TDA7563 功能描述:音頻放大器 Quad Power Amplifier 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
TDA7563A 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
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
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