- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98195 > TDA7415CB (STMICROELECTRONICS) SPECIALTY ANALOG CIRCUIT, PQFP64 PDF資料下載
參數(shù)資料
| 型號： | TDA7415CB |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-64 |
| 文件頁數(shù)： | 25/50頁 |
| 文件大?。?/td> | 1358K |
| 代理商： | TDA7415CB |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁當前第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁
TDA7415CB
Description of the audio processor
Doc ID 14100 Rev 3
5.5
DC offset detector
Using the DC offset detection circuit (figure 22) an offset voltage difference between the
audio power amplifier and theTDA7415CB's PA-outputs can be detected, preventing serious
damage to the loudspeakers. The circuit compares whether the signal crosses the zero level
inside the audio power at the same time as in the speaker cell. The output of the zero-
window-comparator of the power amplifier must be connected with the WinIn-input of the
TDA7415CB. The WinIn-input has an internal pull-up resistor connected to 5,5Volts. It is
recommended to drive this pin with open-collector outputs only.
To compensate for errors at low frequencies the WinTC0/1-pins are implemented, with
external capacitors introducing the same delay
τ = 5kΩ * Cext as the AC-coupling between
the TDA7415 and the power amplifier introduces. For the zero window comparators, the
time constant for spike rejection as well as the threshold are programmable.
For electrical characteristics see page 8.
A low-active DC-offset error signal appears at the DCErr output if the next conditions are
both true:
a)
All PA-outputs (front and rear) are inside zero crossing windows.
b)
The Input voltage VWinIn is logic low whenever at least one output of the power
amplifier is outside the zero crossing windows.
After power-on, the external attached capacitor is rapidly charged (fast-charge) to overcome
a false indication. The fast mode has to be turned off by a manual release of the fast-charge
Figure 23.
DC-offset detection circuit (simplified)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7416 | 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP44 |
| TDA7417TR | 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP32 |
| TDA7417 | 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP32 |
| TDA7418TR | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| TDA7418 | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7415CBTR | 功能描述:音頻放大器 Car-radio Multimedia Signal (CMSP) 6-chnl 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 |
| TDA7416 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CARRADIO SIGNAL PROCESSOR |
| TDA7416_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Car radio signal processor |
| TDA7417 | 功能描述:音頻放大器 Car-radio Multimedia Signal (CMSP) 9.5V 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 |
| TDA7417TR | 功能描述:音頻放大器 Car-radio Multimedia Signal (CMSP) 9.5V 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。