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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)： | 22/50頁 |
| 文件大?。?/td> | 1358K |
| 代理商： | TDA7415CB |
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TDA7415CB
Description of the audio processor
Doc ID 14100 Rev 3
six soft-mute pins low (hardware-mute) or by assessing the corresponding programming bits
(software-mute).
For the In-section, a soft-mute is always stereo for each of the three signal-paths and the
bus-triggered mute exactly corresponds to the pin-triggered mute, with the exception that
the later is inherently faster in response. This behavior is also true for the Out-section, but
here the bus-triggered mute is independent for all six single L/R-channels.
All mute-pins have internal pull-ups connected to a 3,3Volts reference that allow the
connection to either a 3,3V- or a 5V-microproccessor. Reverse flowing currents are limited to
100A, so that the mute-pins may be driven by both, open-drain or push-pull outputs.
The envelope slope of the soft-mute was realized in a special S-shaped curve to soften the
mute transitions in the critical regions (see Figure 20). The completion time for full mute / no
mute is programmable by I2C/SPI-bus in four different values.
Figure 20.
Soft-mute signal envelope versus time
Note:
A triggered mute is always completed and cannot be interrupted by a change of the initial
mute condition.
For the programming of the soft-mute, see the programming chapter.
5.4
Spectrum analyzer
A fully integrated seven-band spectrum analyzer is present in the TDA7415CB (Figure 21).
The spectrum analyzer consists of seven band pass filters followed by rectifiers with sample
capacitors that store the maximum peak signal level for each band 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 input-port of a microprocessor, the output voltage at this pin is
referred to device ground. Since the output voltage follows the peak level linearly, the
microprocessor should take care for a logarithmic conversion (e.g. logarithmic look-up
table).
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| TDA7418TR | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
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相關代理商/技術參數(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 |
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