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參數(shù)資料
| 型號： | TB2902HQ |
| 廠商： | Toshiba Corporation |
| 英文描述： | Maximum Power 41 W BTL 】 4-ch Audio Power IC |
| 中文描述： | 最大功率41糯橋接】4通道音頻功率IC |
| 文件頁數(shù)： | 16/38頁 |
| 文件大小： | 458K |
| 代理商： | TB2902HQ |
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TB2902HQ
2004-08-18
16
(4)
Multiple faults
The self diagnosis shows as below tables when there are multi fault connection for the audio
outputs.
At Turning ON:
S.GND (out
+
)
S.GND (out
)
S.V
CC
Out to Out. S
Open L
S.GND (out
+
)
S.GND
S.GND
S.Load
S.GND
S.GND
+
No open
S.GND (out
)
S.GND
S.Load
S.GND
S.GND
+
No open
S.V
CC
S.V
CC
+
S.Load
S.V
CC
+
S.Load
S.V
CC
+
S.Load
+
open or No open
Out to Out.S
S.Load
S.Load
+
No open
Open L
Open
At Permanent:
S.GND (out
+
)
S.GND (out
)
S.V
CC
Out to Out. S
Open L
S.GND (out
+
)
S.GND
S.GND
S.GND or S.V
CC
(Note 10)
S.GND
S.GND
(Note 9)
S.GND (out
)
S.GND
S.GND or S.V
CC
(Note 10)
S.GND
S.GND
(Note 9)
S.V
CC
S.V
CC
S.V
CC
S.V
CC
(Note 9)
Out to Out.S
S.Load
+
S.GND
N/A
Open L
Normal
Note 9: If the DC offset detection mode is ON, the information which the DC offset is appeared is added.
Note10: The chance which they can read this exact information is only one time although in case of other
diagnosis, the more times sending read command, the higher the confidence of the result.
For example,
a) ch1+ is connected to GND
b) ch1
is connected to V
CC
c) They can read or get the “Short to GND” information when the uP send the Read command.
d) Next, however, they can not get the “Short to GND” or “Short to V
CC
” information when the uP
send the Read command again.
Note 11: Please arrange to read all self-diagnosis functions twice or more and apply judgment in order to
avoid false triggering.
Explanation of I
2
C bus commands
Below the “ADDRESS BYTE”, presently the address byte is fixed at 216 dec
=
D8hex
=
101100xbin.
- Address Selection is D8hexa:
(5)
A7
Address bit
1
A6
Address bit
1
A5
Address bit
0
A4
Address bit
1
A3
Address bit
1
A2
Address bit
0
A1
Address bit
0
A0 (R/W)
Read/Write bit
X
X: 0
=
Write instruction to device; 1
=
Read instruction to device
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| TB2903HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 47W BTL x 4-ch Audio Power IC |
| TB2904HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 43 W BTL ?4-ch Audio Power IC |
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| TB2905HQ(O) | 功能描述:音頻放大器 25W x 4ch Class-KB Car 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TB2906HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 43 W BTL x 4-ch Audio Power IC |
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