网上最靠谱的赚钱方法

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    產品名稱:RF前端接收器

    STA5620 是一種全集成 RF 前端,可將 GPS L1 信號由 1575.42 MHz 下變頻為 4.092 MHz。 接收器出色的噪聲系數和線性保證惡劣環境下具有優異的接收質量。 片上振蕩器晶振頻率 10 MHz 至 40 MHz。 本器件支持溫補振蕩器(TCXO),并具有振蕩器頻率緩沖拷貝功能。
    主要特點 ?低 IF 架構 (單一下變頻 4f0)?與 L1 GPS 和 Galileo 信號兼容?2.7 V 電壓 ?采用 ST BiCMOS6G 專有技術 (45 GHz 雙極型,0.35 μm CMOS) ?2 kV HBM ESD 保護 STA5630 是一種全集成 RF 前端,可將 GPS L1 信號由 1575.42 MHz 下變頻為 4.092 MHz。 這款芯片嵌入高性能 LNA,減少外部元器件數量。 芯片采用先進 的 CMOS 65 nm 工藝。 3位模數轉換器 (ADC) 可將 IF 信號轉換為符號 (SIGN) 與幅度信號 (MAG0 和 MAG1)。 內部集成振幅位,用以控制可變增益放大器。 VGA 增益還可以通過 SPI 接口設置。

    STA5620A
    Description
    The chip is a fully integrated RF front-end able to down-convert the GPS L1 signal from 1575.42 MHz to 4.092 MHz.
    The IF signal is converted by a two bit ADC. Sign (SIGN), Magnitude (MAG) and the 16.368 MHz sampling clock (GPS_CLK) are provided to the baseband.
    The magnitude data is internally integrated in order to control the variable gain amplifiers in accordance to the RF input signal strength.
    An excellent quality of reception in critical environments is ensured by the good noise figure and linearity of the receiver.
    The on-chip oscillator supports crystal frequencies in the range of 10 MHz to 40 MHz. It is able to support TCXO providing also a buffered copy of the oscillator frequency.
    The chip, using STMicroelectronics BiCMOS SiGe technology, is housed in a QFN-32 package.
    Key Features
    Low IF architecture (fIF= 4fO)
    Minimum external components
    VGA gain internally regulated
    On chip programmable PLL
    Typ. 2.7 V supply voltage
    SPI interface
    2 kV HBM ESD protected
    Compatible with GPS L1
    Standard QFN-32 package
    Low power for portable designs

    STA5620C
    Description
    The chip is a fully integrated RF front-end able to down-convert the GPS L1 signal from 1575.42 MHz to 4.092 MHz.
    The IF signal is converted by a two bit ADC. Sign (SIGN), Magnitude (MAG) and the 16.368 MHz sampling clock (GPS_CLK) are provided to the baseband.
    The magnitude data is internally integrated in order to control the variable gain amplifiers in accordance to the RF input signal strength.
    An excellent quality of reception in critical environments is ensured by the good noise figure and linearity of the receiver.
    The on-chip oscillator supports crystal frequencies in the range of 10 MHz to 40 MHz. It is able to support TCXO providing also a buffered copy of the oscillator frequency.
    网上最靠谱的赚钱方法 The chip, using STMicroelectronics BiCMOS SiGe technology, is housed in a QFN-32 package.

    Key Features
    Low IF architecture (fIF= 4fO)
    Minimum external components
    VGA gain internally regulated
    On chip programmable PLL
    Typ. 2.7 V supply voltage
    SPI interface
    2 kV HBM ESD protected
    Compatible with GPS L1
    Standard QFN-32 package
    网上最靠谱的赚钱方法 Low power for portable designs

    STA5630
    Description
    The chip is a fully integrated RF front-end able to down-convert either the GPS L1 signal from 1575.42 MHz to 4.092 MHz.
    The STA5630 embeds high performance LNA minimizing external component count. The chip uses state of the art CMOS 65 nm technology.
    A 3-bit ADC converts the IF signal to Sign (SIGN) and Magnitude (MAG0 and MAG1). The magnitude bits are internally integrated in order to control the variable gain amplifiers. The VGA gain can be also set by the SPI interface.
    The STA5630 accepts a range of reference clocks (10 to 52 MHz) and generates a 16.368 MHz sampling clock (GPS_CLK) for the baseband. The STA5630 embeds LDO to supply the internal core of the device facilitating requirements to external power supply.
    High performance low power and cost effective device, the STA5630 is the ideal solution for automotive, cellular and consumer battery powered applications.
    Key Features
    Integrated LNA
    Low power consumption (<25 mW)
    1.8 V supply voltage
    GPS and Galileo compliant
    Minimum external components
    Serial interface
    3 bits A/D converter
    CMOS 65 nm technology
    Standard QFN-32 package

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