some ppm deviation comes from crystal itself, it can not be
compensate by pll loop itself
but some system can deal with it by the base-band chip's calibration
some ppm deviation comes from crystal itself, it can not be国内最顶级的开发者论坛---FPGA|ASIC|DSP|ARM|单片机|MCU|电子电路|嵌入式|开发设计/OQqr%S
compensate by pll loop itselfasic;ic;fpga;cpld;嵌入式;单片机;mpu;mcu;asi;dsp;arm;mips }Jq;J-ghq
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but some system can deal with it by the base-band chip's calibration