|
悬赏10RD币已解决
之前发表一次,但是说实话我听得糊里糊涂,这次我真的要懂,加了一点rd,以下是内环fail,w band2 9800信道 E和F。。以下是我mtk ini配置文件请指教,Start1=12
End1=14
Start2=24
End2=26
VGA DAC, PA high mode=296,334
VGA DAC, PA middle mode=238,332
VGA DAC, PA low mode=161,331
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,2.6V,2.2V,1.9V,1.5V,1.1V,0.7V,0.6V,
PA OCTLEVEL PMU Level VBias=660,660,660,660,580,580,580,490
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=32.06250,31.75000,31.50000,31.28125,30.93750,29.93750,27.75000,23.562500
DC2DC LEVEL0=1.075V
DC2DC LEVEL1=1.075V
Subband max uarfcn, PA high mode=12,162,287,9262,9290,9318,9346,9374,9400,9428,9456,9484,9512,9538
Subband power offset dB, PA high mode=-1.12500,-1.68750,-1.81250,-1.40625,-0.78125,-0.25000,0.00000,0.03125,-0.06250,-0.28125,-0.43750,-0.21875,0.43750,0.906250
Temperature compensation offset dB, PA high mode=0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.000000
Subband max uarfcn, PA middle mode=12,162,287,9262,9290,9318,9346,9374,9400,9428,9456,9484,9512,9538
Subband power offset dB, PA middle mode=-0.78125,-1.25000,-1.34375,-1.12500,-0.65625,-0.25000,0.00000,0.00000,-0.09375,-0.28125,-0.40625,-0.18750,0.34375,0.750000
Temperature compensation offset dB, PA middle mode=0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.000000
Subband max uarfcn, PA low mode=12,162,287,9262,9290,9318,9346,9374,9400,9428,9456,9484,9512,9538
Subband power offset dB, PA low mode=-0.90625,-1.59375,-1.84375,-1.53125,-0.84375,-0.28125,0.00000,0.00000,-0.18750,-0.50000,-0.75000,-0.62500,0.00000,0.468750
Temperature compensation offset dB, PA low mode=0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.000000
Power detector subband max uarfcn=12,162,287,9262,9290,9318,9346,9374,9400,9428,9456,9484,9512,9538
Power detector subband power offset dB=-0.53125,-0.40625,-0.43750,-0.28125,-0.18750,-0.06250,0.00000,0.03125,-0.03125,-0.28125,-0.78125,-1.09375,-1.40625,-1.406250
问几个问题:
(1)问题主要出在PA的切换点时,PA进行功率等级的切换,造成功率控制的不够平滑,所以会有凸包或凹包。我现在这个应该就是切换点吧。
(2)调整某个功率等级的温度补偿?什么是温补,是这个吗?Temperature compensation offset dB, PA high mode=0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.00000,0.000000 怎么调?
(3)要是电压出现问题,怎么看出来, Dc2Dc=3.4V,2.6V,2.2V,1.9V,1.5V,1.1V,0.7V,0.6V,如何调整?有些有2.7v,有些有3.4v,真心不知道为什么有这么大差异。
(4)调整手机的频率补偿。是在这里面调吗?
还有什么fail可能也一并举出来,最好能讲解一下,呵呵!问题有点多,知道贴吧大神不少,真心不懂,真心请教。谢谢! |
最佳答案
查看完整内容
(1)问题主要出在PA的切换点时,PA进行功率等级的切换,造成功率控制的不够平滑,所以会有凸包或凹包。我现在这个应该就是切换点吧。
--功率切换点就是不同PA Mode相互切换,内环功控Fail大多数都是因为切换点附近处的功率Fai导致的,你所说的凸包或凹包,就是切换点Fail。
(2)调整某个功率等级的温度补偿?什么是温补,是这个吗?Temperature compensation offset dB, PA high mode=0.00000,0.00000,0.00000,0.00000,0.00000,0. ...
|