ZL20250
目录
数据表
1.0概述......................................................................................................................................... 8
1.1接收路径............................................................................................................................................... 9
1.1.1 IS136.................................................................................................................................................. 9
1.1.2 AMPS FM......................................................................................................................................... 11
1.1.3 GSM ................................................................................................................................................. 14
1.2 Transmit..................................................................................................................................................... 16
1.3 UHF LO和频率Doubler............................................................................................................... 19
1.4 UHF频率合成器..................................................................................................................... 19
1.5 VHF频率Synthesizer...................................................................................................................... 22
1.6内部时钟Generation.......................................................................................................................... 23
1.7 VHF VCO................................................................................................................................................... 23
1.8电源连接....................................................................................................................... 24
2.0编程和控制............................................................................................................................ 25
2.1电源控制寄存器 - 地址0 3 ......................................... .................................................. ...... 25
2.1.1功率控制模式 - TDMA （ GSM和IS136 ） ..................................... ....................................... 27
2.1.2功率控制模式 - AMPS ......................................................................................................... 28
2.2操作寄存器地址4 ................................................................................................................... 29
2.3合成寄存器 - 地址5 .............................................................................................................. 33
2.3.1 UHF PLL和LO.............................................................................................................................. 33
2.3.2 UHF PLL电荷泵电流...................................................................................................... 34
2.3.3接收LO成立.......................................................................................................................... 34
2.3.4发射LO设置......................................................................................................................... 35
2.4控制寄存器 - 地址6 ..................................................................................................................... 35
2.4.1 IS136基带增益...................................................................................................................... 35
2.4.2 TCXO参考Selection............................................................................................................. 36
2.4.3鉴相器输出Filtering........................................................................................................... 36
2.4.4基带传输Gain.................................................................................................................. 37
2.4.5模式Control.................................................................................................................................... 37
2.5 GSM / EDGE基带控制寄存器 - 地址7 ........................................ ........................................ 37
2.5.1 Q通道增益调整.................................................................................................................... 38
2.5.2基带偏移Correction............................................................................................................. 38
2.6测试模式寄存器 - 地址8................................................................................................................ 38
2.7 UHF PLL分频寄存器编程 - 地址9 ......................................... ...................................... 39
2.8 UHF PLL的参考除法和小数分频寄存器编程 - 地址10 ................................ 39
2.9接收甚高频分频PLL编程寄存器 - 地址11 ........................................ ....................... 39
2.10接收VHF PLL的参考除法器编程寄存器 - 地址....................................... 12 ..... 40
2.11发送VHF PLL分频寄存器编程 - 地址13 ........................................ .................... 40
2.12发送VHF PLL的参考除法器编程寄存器地址14 ........................................ ..... 40
2.13 PLL锁定检测& N分数补偿编程寄存器地址15 .............................. 40
2.13.1 N分数Compensation............................................................................................................ 41
2.13.2 PLL锁定检测counters............................................................................................................... 41
3.0绝对最大额定值.......................................................................................................................... 41
4.0工作条件.................................................................................................................................... 41
5.0电气特性.............................................................................................................................. 43
6.0典型性能曲线........................................................................................................................ 51
6.1 Receive...................................................................................................................................................... 51
6.2 Transmit..................................................................................................................................................... 52
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