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6223A上遇到的校准问题,请各位大侠帮忙解决,谢谢!

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发表于 2008-8-22 10:21:21 | 显示全部楼层 |阅读模式
Enter into META Mode OK
CAP ID[0]:0,DAC:4000,Freq:18.52(PPM),Center Freq:894.00,Tch:20
CAP ID[1]:63,DAC:4000,Freq:-27.87(PPM),Center Freq:894.00,Tch:20
===========Crystal CAPID calibration end=======
Crystal CAPID check begin
CAPID=17,AFC DAC=0,FreqErr=-25909.8
PASS: Freq error PPM =-29.0
CAPID=17,AFC DAC=8000,FreqErr=21104.4
PASS: Freq error PPM =23.6
result[0]:-29.0
result[1]:23.6
        AFC Calibration Failed,Slop:0.305,min:1.000,max:10.000
Slope=0.305,min:1.000,max:10.000
Use Default Value=3990
================== TX AFC offset calibration begin =====================
============PCS1900 Band=============
First AFC Tracking:i_DAC1 3990
DAC1:3990,gain:25,Frequency offset:305
DAC1:4488,gain:25,Frequency offset:0
Write the min tx afc offset -32284 to NVRAM
FreqErr_min:46942105263157890734323540022806970368.00,tx_afc_offset_min -32284
================== TX AFC offset calibration end  =====================
        AFC Calibration time=60.76(sec)
这是FAIL的AFC,Slope=0.305值偏小,大概都在0.25-0.35之间,但是在900/1900上,是正常的。

Enter into META Mode OK
CAP ID[0]:0,DAC:4000,Freq:16.83(PPM),Center Freq:894.00,Tch:20
CAP ID[1]:63,DAC:4000,Freq:-25.86(PPM),Center Freq:894.00,Tch:20
===========Crystal CAPID calibration end=======
Crystal CAPID check begin
CAPID=19,AFC DAC=0,FreqErr=-24697.1
PASS: Freq error PPM =-27.6
CAPID=19,AFC DAC=8000,FreqErr=19320.6
PASS: Freq error PPM =21.6
result[0]:-27.6
result[1]:21.6
        AFC Calibration OK
Slope=6.747,min:1.000,max:10.000
Use Default Value=4123
================== TX AFC offset calibration begin =====================
============DCS1800 Band=============
First AFC Tracking:i_DAC1 4123
DAC1:4123,gain:25,Frequency offset:-15
Write the min tx afc offset -22 to NVRAM
FreqErr_min:-469.62,tx_afc_offset_min -22
================== TX AFC offset calibration end  =====================
        AFC Calibration time=11.96(sec)
===========TX IQ Cal Start===============
TrimI =0,TrimQ =0,SBS =-42.580020,PSBS =0.000055
OffsetI ==0,OffsetQ =0,OOS =-34.801530,POOS =0.000331
TrimI =7,TrimQ =-7,SBS =-29.120530,PSBS =0.001224
OffsetI ==0,OffsetQ =30,OOS =-34.044670,POOS =0.000394
TrimI =-7,TrimQ =7,SBS =-33.657890,PSBS =0.000431
OffsetI ==30,OffsetQ =-30,OOS =-23.081490,POOS =0.004919
OffsetI ==-30,OffsetQ =-30,OOS =-22.871850,POOS =0.005162
Evaluate Xt = -3.60,TrimI = -2,TrimQ = 2
Evaluate OffsetI = 1,OffsetQ = 14
d_OOS_Check = -60.42,d_SBS_Check = -57.11
在1800频段,是正常的,可以PASS。

请各位大侠帮忙,谢谢!
 楼主| 发表于 2008-8-22 10:41:06 | 显示全部楼层
期待中。。。
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发表于 2008-9-18 22:46:56 | 显示全部楼层
有可能850的saw没有焊好.
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发表于 2008-9-23 20:41:09 | 显示全部楼层
就是就是
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