请教关于AFC校准的问题
时间:10-02
整理:3721RD
点击:
[Crystal AFC Calibration]
;CRYSTAL_AFC_BAND: GSM, DCS, PCS, GSM850
CRYSTAL_AFC_BAND = GSM
CRYSTAL_AFC_ARFCN = 20
CRYSTAL_AFC_GSM850_PCL = 12
CRYSTAL_AFC_GSM900_PCL = 12
CRYSTAL_AFC_DCS1800_PCL = 12
CRYSTAL_AFC_PCS1900_PCL = 12
CRYSTAL_AFC_CAL_DAC = 4000
CRYSTAL_AFC_CHECK_DAC1 = 0
CRYSTAL_AFC_CHECK_DAC2 = 8000
CRYSTAL_AFC_MIN_FREQ_ERR_PPM = -20.0
CRYSTAL_AFC_MAX_FREQ_ERR_PPM = 20.0
CRYSTAL_AFC_FREQ_ERR_MEASUSE_COUNT = 10
CRYSTAL_AFC_TRX_OFFSET_RECURSIVE_TIMES = 20
请高手帮忙分析一下以上部分的校准过程,和各部分结果是怎么样得到的
谢谢了!
;CRYSTAL_AFC_BAND: GSM, DCS, PCS, GSM850
CRYSTAL_AFC_BAND = GSM
CRYSTAL_AFC_ARFCN = 20
CRYSTAL_AFC_GSM850_PCL = 12
CRYSTAL_AFC_GSM900_PCL = 12
CRYSTAL_AFC_DCS1800_PCL = 12
CRYSTAL_AFC_PCS1900_PCL = 12
CRYSTAL_AFC_CAL_DAC = 4000
CRYSTAL_AFC_CHECK_DAC1 = 0
CRYSTAL_AFC_CHECK_DAC2 = 8000
CRYSTAL_AFC_MIN_FREQ_ERR_PPM = -20.0
CRYSTAL_AFC_MAX_FREQ_ERR_PPM = 20.0
CRYSTAL_AFC_FREQ_ERR_MEASUSE_COUNT = 10
CRYSTAL_AFC_TRX_OFFSET_RECURSIVE_TIMES = 20
请高手帮忙分析一下以上部分的校准过程,和各部分结果是怎么样得到的
谢谢了!
CRYSTAL_DAC1=3800
CRYSTAL_DAC2=4200