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參數(shù)資料
| 型號： | TDA7562 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 38 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM27 |
| 封裝： | FLEXIWATT-27 |
| 文件頁數(shù)： | 2/17頁 |
| 文件大?。?/td> | 202K |
| 代理商： | TDA7562 |
TDA7562
10/17
with the 4 ohm speaker unconnected is considered as double fault.
S. GND (so) / S. GND (sk) in the above table make a distinction according to which of the 2 outputs is shorted
to ground (test-current source side= so, test-current sink side = sk). More precisely, so = CH+, sk = CH-.
FAULTS AVAILABILITY
All the results coming from I2Cbus, by read operations, are the consequence of measurements inside a defined
period of time. If the fault is stable throughout the whole period, it will be sent out.
To guarantee always resident functions, every kind of diagnostic cycles will be reactivate after any I2C reading
operation. So, when the micro reads the I2C, a new cycle will be able to start, but the read data will come from
the previous diag. cycle (i.e. The device is in turned On, with a short to Gnd, then the short is removed and micro
reads I2C. The short to Gnd is still present in bytes, because it is the result of the previous cycle. If another I2C
reading operation occurs, the bytes do not show the short). In general to observe a change in Diagnostic bytes,
two I2C reading operations are necessary.
I2C PROGRAMMING/READING SEQUENCES
A correct turn on/off sequence respectful of the diagnostic timings and producing no audible noises could be as
follows (after battery connection):
TURN-ON: PIN2 > 7V --- 10ms --- (STAND-BY OUT + DIAG ENABLE) --- 500 ms (min) --- MUTING OUT
TURN-OFF: MUTING IN --- 20 ms --- (DIAG DISABLE + STAND-BY IN) --- 10ms --- PIN2 = 0
Car Radio Installation: PIN2 > 7V --- 10ms DIAG ENABLE (write) --- 200 ms --- I2C read (repeat until All faults
disappear).
OFFSET TEST: Device in Play (no signal) -- OFFSET ENABLE - 30ms - I2C reading (repeat I2C reading until
high-offset message disappears).
FAST MUTING
The muting time can be shortened to less than 1ms by setting (IB2) D5 = 1. This option can be useful in transient
battery situations (i.e. during car engine cranking) to quickly turnoff the amplifier for avoiding any audible effects
caused by noise/transients being injected by preamp stages.
Double fault table for Turn On Diagnostic
S. GND (so)
S. GND (sk)
S. Vs
S. Across L.
S. GND (so)
S. GND
S. Vs + S. GND
S. GND
S. GND (sk)
/
S. GND
S. Vs
S. GND
S. Vs
/
S. Vs
S. Across L.
/
S. Across L.
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| 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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