MTK平台手机CTA认证带内杂散超标
时间:10-02
整理:3721RD
点击:
怎么优化CTA认证出现,EGSM850/GSM900的带内杂散超标问题。哪里可以调试。可以调试时序吗,那个值可以调试的?
频率 900 MHz 时, 传导杂散超出规定的范围,在 500和850 MHz之间.
/*MT6261RF*/
/*MT6261RF*/ /*--------------------------------------------------------*/
/*MT6261RF*/ /* Event Timing Define */
/*MT6261RF*/ /*--------------------------------------------------------*/
/*MT6261RF*/ #define QB_SR0 213 /* QB_PR1 and QB_PR2 should be larger than (QB_SR0 - 30) */
/*MT6261RF*/ #define QB_SR1 140
/*MT6261RF*/ #define QB_SR2 70 /* QB_RX_FENA_2_FSYNC (48) should be <= (QB_SR2 -12) */
/*MT6261RF*/ #define QB_SR3 4 /* QB_RX_FSYNC_2_FENA ( 3) should be <= (QB_SR3 ) */
/*MT6261RF*/ #define QB_SR2M 44
/*MT6261RF*/ #define QB_PR1 188 /* QB_PR1 should be larger than (QB_SR0 - 30) */
/*MT6261RF*/ #define QB_PR2 185 /* QB_PR2 should be larger than (QB_SR0 - 30) */
/*MT6261RF*/ #define QB_PR3 6
/*MT6261RF*/
/*MT6261RF*/ #define QB_ST0 325
/*MT6261RF*/ #define QB_ST1 280
/*MT6261RF*/ #define QB_ST2B 52 /* QB_TX_FENA_2_FSYNC (40) should be <= (QB_ST2B-12) */ /* QB_ST2B should be < 75 */
/*MT6261RF*/ #define QB_ST3 38 /* QB_TX_FSYNC_2_FENA (27) should be <= (QB_ST3 -11) */
/*MT6261RF*/ #define QB_PT1 245
/*MT6261RF*/ #define QB_PT2 20
/*MT6261RF*/ #define QB_PT2B 10
/*MT6261RF*/ #define QB_PT3 28
/*MT6261RF*/
/*MT6261RF*/ #define QB_APCON 14
/*MT6261RF*/ #define QB_APCMID 26
/*MT6261RF*/ #define QB_APCOFF 14
/*MT6261RF*/ #define QB_APCDACON 18
/*MT6261RF*/ #define TX_PROPAGATION_DELAY 50
频率 900 MHz 时, 传导杂散超出规定的范围,在 500和850 MHz之间.
/*MT6261RF*/
/*MT6261RF*/ /*--------------------------------------------------------*/
/*MT6261RF*/ /* Event Timing Define */
/*MT6261RF*/ /*--------------------------------------------------------*/
/*MT6261RF*/ #define QB_SR0 213 /* QB_PR1 and QB_PR2 should be larger than (QB_SR0 - 30) */
/*MT6261RF*/ #define QB_SR1 140
/*MT6261RF*/ #define QB_SR2 70 /* QB_RX_FENA_2_FSYNC (48) should be <= (QB_SR2 -12) */
/*MT6261RF*/ #define QB_SR3 4 /* QB_RX_FSYNC_2_FENA ( 3) should be <= (QB_SR3 ) */
/*MT6261RF*/ #define QB_SR2M 44
/*MT6261RF*/ #define QB_PR1 188 /* QB_PR1 should be larger than (QB_SR0 - 30) */
/*MT6261RF*/ #define QB_PR2 185 /* QB_PR2 should be larger than (QB_SR0 - 30) */
/*MT6261RF*/ #define QB_PR3 6
/*MT6261RF*/
/*MT6261RF*/ #define QB_ST0 325
/*MT6261RF*/ #define QB_ST1 280
/*MT6261RF*/ #define QB_ST2B 52 /* QB_TX_FENA_2_FSYNC (40) should be <= (QB_ST2B-12) */ /* QB_ST2B should be < 75 */
/*MT6261RF*/ #define QB_ST3 38 /* QB_TX_FSYNC_2_FENA (27) should be <= (QB_ST3 -11) */
/*MT6261RF*/ #define QB_PT1 245
/*MT6261RF*/ #define QB_PT2 20
/*MT6261RF*/ #define QB_PT2B 10
/*MT6261RF*/ #define QB_PT3 28
/*MT6261RF*/
/*MT6261RF*/ #define QB_APCON 14
/*MT6261RF*/ #define QB_APCMID 26
/*MT6261RF*/ #define QB_APCOFF 14
/*MT6261RF*/ #define QB_APCDACON 18
/*MT6261RF*/ #define TX_PROPAGATION_DELAY 50
GSM900 杂散超标
alcr
需要在处理2G PA的输入,输出 (并1.2pf 串4nh 并 1.2pf ) 可以先处理 2g PA的输入
带内杂散...可以改一下校准文件试试
校准文件怎么改,有相关项目试过么,效果怎么样