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参数资料
| 型号： | TB2902HQ |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 45 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封装： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件页数： | 8/40页 |
| 文件大小： | 579K |
| 代理商： | TB2902HQ |
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TB2902HQ
2006-04-28
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.VCC
Out to Out. S
Open L
S.GND (out
+)
S.GND
S.Load
S.GND
+ No open
S.GND (out
)
S.GND
S.Load
S.GND
+ No open
S.VCC
S.VCC + S.Load
S.VCC + S.Load +
open or No open
Out to Out.S
S.Load
+ No open
Open L
Open
At Permanent:
S.GND (out
+)
S.GND (out
)
S.VCC
Out to Out. S
Open L
S.GND (out
+)
S.GND
S.GND or S.VCC
(Note 10)
S.GND
(Note 9)
S.GND (out
)
S.GND
S.GND or S.VCC
(Note 10)
S.GND
(Note 9)
S.VCC
(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 VCC
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 VCC” 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.
(5)
Explanation of I2C bus commands
Below the “ADDRESS BYTE”, presently the address byte is fixed at 216 dec
= D8hex = 101100xbin.
- Address Selection is D8hexa:
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
相关PDF资料 |
PDF描述 |
|---|---|
| TB2902HQ | 45 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2903HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2903HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2904HQ | 26 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2904HQ | 26 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TB2903HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Maximum Power 47W BTL x 4-ch Audio Power IC |
| TB2904HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Maximum Power 43 W BTL ?4-ch Audio Power IC |
| TB2905HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Class KB High-Efficiency, Low-Frequency Power Amplifier IC Maximum Power: 47 W x 4 Channels |
| TB2905HQ(O) | 功能描述:音频放大器 25W x 4ch Class-KB Car Pwr Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TB2906HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Maximum Power 43 W BTL x 4-ch Audio Power IC |
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