CS2300-CP
目录
1.引脚说明................................................................................................................................. 4
2.典型连接图.....................................................................................................五
3.特性和规范............................................. ......................................... 6
推荐工作条件............................................... ..................................... 6
绝对最大额定值........................................................................................................ 6
DC电气特性............................................... ................................................. 6
AC电气特性............................................... ................................................. 7
PLL性能曲线............................................................................................................... 8
控制端口切换特征 - IC格式........................................... ........ 9
控制端口开关特性 - SPI格式........................................... .... 10
4.架构概述............................................................................................................. 11
4.1 Δ-Σ分数N频率合成器......................................... ................................ 11
4.2模数混合锁相环.......................................... .......................................... 11
5.应用................................................................................................................................... 13
5.1定时参考时钟................................................................................................................. 13
5.2频率参考时钟输入， CLK_IN ........................................... ........................................ 13
5.2.1 CLK_IN跳跃模式......................................................................................................... 13
5.2.2调整最小环路带宽的CLK_IN ........................................ .................... 15
5.3输出到输入频率比配置........................................... .................................. 16
5.3.1用户定义的比例（路德） ..................................................................................................... 16
5.3.2比例调节器（ R- MOD） .......................................................................................................... 17
5.3.3有效率（ REFF ） .......................................................................................................... 17
5.3.4比例配置摘要............................................ .................................................. 18
5.4 PLL时钟输出........................................................................................................................... 19
5.5辅助输出.............................................................................................................................. 19
5.6时钟输出稳定性考虑............................................. ............................................... 20
5.6.1输出开关................................................................................................................... 20
5.6.2 PLL解锁条件.......................................................................................................... 20
5.7要求的加电排序............................................. .................................................. ..... 20
6. SPI / IC控制端口................................................................................................................... 20
6.1 SPI控制..................................................................................................................................... 21
6.2 IC控制...................................................................................................................................... 21
6.3存储器地址指针............................................................................................................... 23
6.3.1地图自动递增.............................................................................................................. 23
7.注册快速参考........................................................................................................ 23
8.注册说明................................................................................................................ 24
8.1设备内径与修订（地址01H ） ............................................ ........................................... 24
8.1.1设备标识（设备[ 4 ： 0 ] ） - 只读.................................. ................................... 24
8.1.2设备版本（修订版[ 2 ： 0 ] ） - 只读.................................. ...................................... 24
8.2设备控制（地址02H ） ........................................................................................................ 24
8.2.1解锁指示灯（解锁） - 只读....................................... ........................................... 24
8.2.2辅助输出禁用（ AuxOutDis ） ......................................... .......................................... 24
8.2.3 PLL时钟输出禁止（ ClkOutDis ） ........................................ .......................................... 25
8.3设备配置1 （地址03H ） .......................................... ................................................. 25
8.3.1 R-国防部选择（ RModSel [ 2 ： 0 ] ） ................................... .................................................. ...... 25
8.3.2辅助输出源选择（ AuxOutSrc [ 1 ： 0 ] ） ................................... .......................... 25
8.3.3启用设备配置寄存器1 （ EnDevCfg1 ） ....................................... ................. 26
8.4全局配置（地址05H ） ........................................... .................................................. .. 26
8.4.1设备配置冻结（冻结） ......................................... ....................................... 26
8.4.2启用设备配置寄存器2 （ EnDevCfg2 ） ....................................... ................ 26
8.5比（地址06H - 09H ） .............................................................................................................. 26
8.6功能配置1 （地址16H） .......................................... .............................................. 27
2
DS843F1
QQ：2881677436 复制
