射频接收框架图 B1_RX B1_RX G1900/B2_RX G1800/B3_RX B5_RX GSM900_RX B41_RX DRX_B1 DRX_B3 Z3301 U3301 射频开关 U5501 射频开关 U3901 U4801 Z4201 Z4101 Z4001 Z4001 G1900/B2_RX G1800/B3_RX B5_RX GSM900_RX B41_RX WTR0_PRXBB_I_P WTR0_PRXBB_Q_P U5601 收发芯片 U801 (CPU+BB) DRX_B1 DRX_B1 DRX_B1 Z5102 U5101 Z5202 DRX_B3 Z4502 U4502 DRX_B3 DRX_B3 Z5201 WTR0_DRXBB_I_P WTR0_DRXBB_Q_P DRX_B41 DRX_B41 Z5103 U5103 DRX_B41 DRX_B41 Z5402 返回目录 主集接收 J3301 分集接收 J5501 返回目录