RF Calibration and Test Mode(TI 平台)

wty81819796

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wty81819796

好貴喔[em08][em08]

wty81819796

好你个骗子。15RD啊。。。
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nideshao

1       APC Power level: Power level calibrated and tolerances, how is data for NVRAM calculated

For 4 bands:
GSM859/900: pcl 5-19;  dBm:32,31,29,27,25,23,21,19,17,15,13,11,9,7,5
DCS1800/PCS1900: pcl 0-15; dBm:29,28,26,24,22,20,18,16,14,12,10,8,6,4,2,0
recommended tolerances: ±0.2
scale factor value should be saved into flash
2      AGC Radio gain measured and siggen.

Mid channel for each band;
Generator is set to -85dBm for MaxGain test
should be as:send "CalDevGsmGainProgramReq" to handset, and handset return "rssilevel",then MaxGain = rssilevel/16 - (-85);
Generator = -65dBm for Reduction Gain test
same as above: Reduc Gain = (MaxGain - (rssilevel/16 - (-65)));
Then, fill the Gain code table for each band;   
3     AFC   TX power vs frequency: Power level and channels used, how is data calculated

This process is same as power level. The different is the measurment channel. .
4       RSSI vs frequency: Power level and channels used, how is data calculated

The commands same as RX gain
Send "CalDevGsmGainProgramReq" return "rssilevel"
Rssicomp[channel] =  -16 * (rssilevel - (-85) - MaxGain)

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szjyprobes

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wangleyi09

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