现象:用两个校准文件校准同一台手机,校准后信令测试,其中一个W B1 E,F FAIL(fail的MARK点固定) 另外一台 E, F pass(STEP值没有临界) 对比两个初始校准文件 ,INI文件不同处如下:(功率切换点和DC供电电压相同,VGA DAC,PA Low mode和PA Gain)
VGA DAC, PA high mode=296,310 (VGA DAC, PA high mode=296,307)
VGA DAC, PA middle mode=238,312 (VGA DAC, PA middle mode=238,308)
VGA DAC, PA low mode=161,316 (VGA DAC, PA low mode=161,304)
PA OCTLEVEL Sections=8
PA OCTLEVEL PA Phase Compensation=0,0,0
PA OCTLEVEL PMU Level PA Mode=H,H,H,H,H,M,M,L
PA OCTLEVEL PMU Level Prf=24,22,20,18,15,11,6,0
PA OCTLEVEL PMU Level Dc2Dc=3.4V,3.0V,2.4V,2.1V,1.7V,0.9V,0.8V,0.6V,
PA OCTLEVEL PMU Level VBias=0,0,0,0,0,0,0,0
PA OCTLEVEL PMU Level Vm1=0,0,0,0,0,1,1,1
PA OCTLEVEL PMU Level Vm2=0,0,0,0,0,0,0,1
PA OCTLEVEL PMU Level PA Gain=36.78125,36.75000,36.09375,35.84375,35.00000,29.09375,28.46875,23.093750 (PA OCTLEVEL PMU Level PA Gain=40.03125,40.59375,40.75000,40.71875,40.78125,37.96875,37.56250,32.750000)
目前做了如下验证:
改fail的初始INI文件PA GIAN为40 ,40, 40,。。。这组,校准后,信令测试ILPC OK
改fail的初始INI文件VGA DAC,PA low mode为161,304 ,校准后,信令测试ILPC 依然会FAIL
导出校准后的INI文件。发现ILPC过的INI文件PA low mode为161,296
ILPC FAIL的INI文件PA low mode为161,301
请大牛解析下影响ILPC的原因!
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