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參數(shù)資料
| 型號： | TDA7563B |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 50 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27 |
| 封裝： | ROHS COMPLIANT, FLEXIWATT-27 |
| 文件頁數(shù)： | 6/33頁 |
| 文件大?。?/td> | 465K |
| 代理商： | TDA7563B |
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Diagnostics functional description
TDA7563B
Doc ID 12733 Rev 3
4
Diagnostics functional description
4.1
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 "diag. 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
without turn-on diagnostic.
Figure 20. SVR and output behavior (Case 1: without turn-on diagnostic)
CH-
CH+
Isource
Vs~5V
Isink
t (ms)
I (mA)
Isink
Isource
~100mS
Measure time
Bias (power amp turn-on)
t
Diagnostic Enable
(Permanent)
Permanent diagnostic
acquisition time (100mS Typ)
Permanent Diagnostics data (output)
permitted time
I2CB DATA
Vsvr
Out
FAULT
event
Read Data
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PDF描述 |
|---|---|
| TDA7563PDTR | 46 W, 4 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDA7563PD | 46 W, 4 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDA7563 | 46 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27 |
| TDA7564BH | 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25 |
| TDA7564B | 50 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7563BH | 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 |
| TDA7563BPD | 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 |
| TDA7563BPDTR | 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 |
| TDA7563H | 制造商:STMicroelectronics 功能描述: |
| TDA7563PD | 功能描述:音頻放大器 MULTIFUNCTION QUAD Pwr AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型: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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