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參數(shù)資料
| 型號： | TDA7419 |
| 廠商： | 意法半導體 |
| 英文描述： | 3 BAND CAR AUDIO PROCESSOR |
| 中文描述： | 3波段車載音頻處理器 |
| 文件頁數(shù)： | 17/30頁 |
| 文件大?。?/td> | 804K |
| 代理商： | TDA7419 |
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TDA7419
5.10 Spectrum Analyzer
A fully integrated seven-band spectrum analyzer with programmable quality factor is present. The spec-
trum analyzer consists of seven band pass filters with rectifier and sample capacitor that stores the max-
imum 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 fol-
lowing 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 t
Sadel
. A reset of the sample capacitors is induced
whenever SAclk remains high for the time t
intres
. 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 20. Spectrum analyzer block diagram
Figure 21. Timing of the spectrum analyzer
相關PDF資料 |
PDF描述 |
|---|---|
| TDA7419TR | 3 BAND CAR AUDIO PROCESSOR |
| TDA7420 | MULTIFUNCTIONAUDIO PROCESSOR |
| TDA7421N | AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS |
| TDA7421 | AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS |
| TDA7427A | AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
相關代理商/技術參數(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 |
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