网上最靠谱的赚钱方法

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    產品名稱:信號處理器

    ST豐富的模擬和數字信號處理器涵蓋了多種特性和和汽車音響應用 頻譜的信道配置,能滿足從低端到高端音頻系統的汽車音頻應用需求。 用戶可在40多種模擬信號處理器中選擇最佳解決方案,這些處理器在輸入信道數量、輸出信 道數量、基帶音頻功能(包括均衡器、動態壓縮器、亞音速濾波器等)等方面有所不同。 另外,用戶還可以選擇帶有嵌入式20位音頻ADC和DAC的全數字解決方案,該解決方案基于專門針對音頻應用而設計的24位DSP. 根據不同的產品,提供以下功能:
    ■可選差分和單端模擬輸入源(AM/FM、磁帶、CD/DVD、電話/Navi AUX)
    ■可選數字輸入源,支持最普通的標準(I2S, SPDIF)
    ■各種輸出配置
    ■左右聲道均衡器、衰減器、音調和音量控制、圖示補償器、亞音速濾波器、動態壓縮器等等
    ■雙聲道媒體播放
    ■FM立體聲解碼器

    TDA7303
    Description
    The TDA7303 is a volume, tone (bass and treble) balance (left/right) and fader (front/rear) processor for quality audio applications in car radio, Hi-Fi and portable systems.
    Selectable input gain and external loudness function are provided. Control is accomplished by serial I2C bus microprocessor interface.
    The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers.
    Thanks to the used bipolar/CMOS technology, low distortion, low noise and low DC stepping are obtained.

    Key Features
    Input multiplexer:
    3 stereo inputs
    Selectable input gain for optimal adaptation to different sources
    Volume control in 1.25 dB steps
    Loudness function
    Treble and bass controL
    Four speaker attenuators:
    4 independent speakers control in 1.25d B steps for balance and fader facilities
    Independent mute function
    网上最靠谱的赚钱方法 All functions programmable via serial I2C bus

    TDA7342
    Description
    The audioprocessor TDA7342 is an upgrade of the TDA731X audioprocessor family.
    Due to a highly linear signal processing, using CMOS-switching techniques instead of standard bipolar multipliers, very low distortion and very low noise are obtained. Several new features like softmute, and zero-crossing mute are implemented. The soft Mute function can be activated in two ways:
    Via serial bus (Mute byte, bit D0)
    Directly on pin 21 through an I/O line of the microcontroller
    网上最靠谱的赚钱方法 Very low DC stepping is obtained by use of a BICMOS technology.

    Key Features
    Input multiplexer
    Two stereo and one mono inputs
    One quasi differential input
    Selectable input gain for optimal adaptation to different sources
    Fully programmable loudness function
    Volume control in 0.3dB steps including gain up to 20dB
    Zero crossing mute, soft mute and direct mute
    Bass and treble control
    Four speaker attenuators
    Four independent speakers control in 1.25dB steps for balance and fader facilities
    Independent mute function
    网上最靠谱的赚钱方法 All functions programmable via serial I2C bus

    TDA7342EQ2N
    Description
    The audioprocessor TDA7342EQ2N is an upgrade of the TDA731X audioprocessor family.
    Due to a highly linear signal processing, using CMOS-switching techniques instead of standard bipolar multipliers, very low distortion and very low noise are obtained. Several new features like softmute, and zero-crossing mute are implemented. The soft Mute function can be activated in two ways:
    Via serial bus (Mute byte, bit D0)
    Directly on pin 21 through an I/O line of the microcontroller
    Very low DC stepping is obtained by use of a BICMOS technology.

    Key Features
    Input multiplexer
    Two stereo and one mono inputs
    One quasi differential input
    Selectable input gain for optimal adaptation to different sources
    Fully programmable loudness function
    Volume control in 0.3dB steps including gain up to 20dB
    Zero crossing mute, soft mute and direct mute
    Bass and treble control
    Four speaker attenuators
    Four independent speakers control in 1.25dB steps for balance and fader facilities
    Independent mute function
    All functions programmable via serial I2C bus

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