- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98195 > TDA7419 (STMICROELECTRONICS) 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 PDF資料下載
參數(shù)資料
| 型號： | TDA7419 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| 封裝： | SO-28 |
| 文件頁數(shù)： | 18/40頁 |
| 文件大?。?/td> | 698K |
| 代理商： | TDA7419 |
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頁當(dāng)前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第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
TDA7419
Description of the audio processor
4.9
Subwoofer filter
The subwoofer lowpass filter has butterworth characteristics with programmable cut-off
frequency (80/120/160 Hz)
Figure 18.
Subwoofer control
4.10
Spectrum analyzer
A fully integrated seven-band spectrum analyzer with programmable quality factor is
present. The spectrum analyzer consists of seven band pass filters with rectifier and sample
capacitor that stores the maximum peak signal level since the last read cycle. This peak
signal level can be read by a microprocessor at the SAout pin. To allow easy interfacing to
an analog port of the microprocessor, the output voltage at this pin is referred to device
ground.
The microprocessor starts a read cycle with the negative going clock edge at the SAclk
input. On the following positive clock edges, the peak signal level for the band pass filters is
subsequently switched to SAout. Each analog output data is valid after the time tSadel. A
reset of the sample capacitors is induced whenever SAclk remains high for the time tintres.
Note that a proper reset requires the clock signal SAclk to be held at high potential. Figure
20 shows the block diagram and figure 21 illustrates the read cycle timing of the spectrum
analyzer.
Figure 19.
Spectrum analyzer block diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7420 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TDA7421N | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| TDA7421 | AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| TDA7427AAD1 | PLL FREQUENCY SYNTHESIZER, 200 MHz, PDSO28 |
| TDA7427AD | PLL FREQUENCY SYNTHESIZER, 200 MHz, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7419TR | 功能描述:音頻放大器 5 Band Car Audio Processor 8-10V 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 |
| TDA7420 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTIFUNCTIONAUDIO PROCESSOR |
| TDA7421 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS |
| TDA7421N | 制造商:ST 功能描述:AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS |
| TDA7427 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。