STA5620C中文资料Fully integrated RF front-end receiver for GPS applications数据手册ST规格书

描述 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.

特性 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

简介

STA5620C属于RF/IF射频/中频RFID的射频接收器。由制造生产的STA5620C射频接收器RF 接收器用于接收已调制的射频信号并对其进行解调，然后将数据传送到系统中进行处理。频率范围是 AM、FM、WB、0 Hz 至 64 GHz，数据速率为 250 bps 至 16 Gbps，数据接口包括连接器、I2C、I2S、引脚焊盘、并行、PCB、串行、焊盘、SPI、UART 和 USB。