MAX2771C/D+: FAQ

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  • Can MAX2771 simultaneously receive L-band signals, L1 and L5?

    No, MAX2771 cannot simultaneously receive L1 and L5 signals. There is only one synthesizer in the IC, so only one Local Oscillator frequency can be generated at any given time to down-convert either L1…
  • Can the MAX2771 unused LNA pins be left open?

    All the RF input pins have to terminated with proper input impedances and should not be left unused. The LC matching circuit is provided to match the LNA _IN pins to 50ohms Unused pins should be terminated…
  • MAX2771的ADC数据输出模式

    参考MAX2771数据手册第23页图2(如 下图),MAX2771的ADC数据输出有两种读取方式。 1)当 STRM_EN 禁用的时候,ADC数据直接输出到管脚11~13,时钟来自管脚4的参考时钟。 2)当 STRM_EN 使能的时候,ADC数据仍然输出到管脚11~13,但是这是通过串行处理的,便于与DSP的串行接口连接。但是这个接口不同于用于器件寄存器读写的SPI接口。

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