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參數(shù)資料
| 型號： | TB2932HQ |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 45 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封裝： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件頁數(shù)： | 30/30頁 |
| 文件大?。?/td> | 255K |
| 代理商： | TB2932HQ |
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TB2932HQ
2007-07-01
9
B) Repetition mode
The turn ON diagnostic acquisition time is determined by the ripple filter capacitance C2 and
the equivalent internal resistance Rr as below expression.
Acquisition time
= 2 × C2 × Rr = 4400 × C2 (typ.)
Rr is fixed in internal circuit and it is not varied by the fluctuation of power supply VCC voltage.
C2 value determines the time from power ON (standby off) to the appearance of sound signal
from output and the characteristic for ripple rejection ratio, too. So, take care with the decision on
C2 value.
If the turn ON diagnosis is not used, in other words the diagnostic cycle defeat command is sent,
the waveform of ripple terminal voltage will change but the time from turning on to the output
signal appearance will not change as illustrated below in Figure 6.
Figure 6 Turn on Diagnosis Timing Chart when Turn on diagnosis not used.
WRITE DATA
Pin10
ripple
pin
voltage
Turn ON diagnosis enable
Turn ON diagnosis defeat
I
2C command
Pin 10
Writing
(diag cycle enable
= 1)
(stand by OFF
= 0)
Reading 2
Reading 3
About 100 ms
Diag enable
Fault event
Latch
DB1 D6
(acquisition time with only turn-ON)
Reading 4
Reading 5
Reading 6
About 80 ms
Maximum interval:
You can select the acquisition time.
Minimum interval:
It is determined by the speed of microcomputer.
About 80 ms
Reading 1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TB2932HQ(O) | 功能描述:音頻放大器 49W x 4-CH class -AB car power amplifer RoHS:否 制造商:STMicroelectronics 產品: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 |
| TB2939HQ(O) | 功能描述:音頻放大器 45W x 4-CHANNEL car power amplifer RoHS:否 制造商:STMicroelectronics 產品: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 |
| TB2946HQ(O) | 功能描述:音頻放大器 49W x 4-CH Class-AB car power amplifer RoHS:否 制造商:STMicroelectronics 產品: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 |
| TB2955HQ(O) | 功能描述:音頻放大器 45W 4-CH High-EFF car power amplifer RoHS:否 制造商:STMicroelectronics 產品: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 |
| TB-2B.7-AL | 制造商:OKW ENCLOSURES INC 功能描述:ENCLOSURE, TB-2B, WHITE, 6.299 X 3.7 X 1.24 INCHES |
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