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STA5620 - Fully integrated RF front-end receiver

Description

The chip is a fully integrated RF front-end able to down-convert the GPS L1 signal from 1575.42MHz to 4.092MHz.

The IF signal is converted by a two bit ADC.

Sign (SIGN), Magnitude (MAG) and the 16.368MHz sampling clock (GPS_CLK) are provided to the baseband.

Features

  • Low IF architecture (fIF = 4fO) www. DataSheet4U. com.
  • Minimum external components.
  • VGA gain internally regulated On chip programmable PLL Typ. 2.7V supply voltage SPI interface 2kV HBM ESD protected Compatible with GPS L1 Standard QFN-32 package Low power for portable designs 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 r.

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Full PDF Text Transcription

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STA5620 Fully integrated RF front-end for GPS Preliminary Data Features ■ Low IF architecture (fIF = 4fO) www.DataSheet4U.com ■ Minimum external components ■ ■ ■ ■ ■ ■ ■ ■ VGA gain internally regulated On chip programmable PLL Typ. 2.7V supply voltage SPI interface 2kV HBM ESD protected Compatible with GPS L1 Standard QFN-32 package Low power for portable designs 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 10MHz to 40MHz.
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