收藏本站
Si4421
12. PLL Setting Command
Bit
15
1
14
1
13
0
12
0
11
1
10
1
9
0
8
0
7
0
6
ob1
5
ob0
4
1
3
dly
2
ddit
1
1
0
bw0
POR
CC77h
Bits 6-5 ( ob1-ob0 ): Microcontroller output clock buffer rise and fall time control. The ob1-ob0 bits are changing the output drive
current of the CLK pin. Higher current provides faster rise and fall times but can cause interference.
ob1
1
1
0
ob0
1
0
X
Selected μC CLK frequency
5 or 10 MHz (recommended)
3.3 MHz
2.5 MHz or less
Note: Needed for optimization of the RF performance. Optimal settings can vary according to the external load capacitance.
Bit 3 ( dly ): Switches on the delay in the phase detector when this bit is set.
Bit 2 ( ddit ): When set, disables the dithering in the PLL loop.
Bit 0 ( bw0 ): PLL bandwidth can be set for optimal TX RF performance.
bw0
0
1
Max bit rate [kbps]
86.2
256
Phase noise at 1MHz offset [dBc/Hz]
-107
-102
Note: POR default settings of the register were carefully selected to cover almost all typical applications. When changing these
values, examine thoroughly the output RF spectrum. For more information, contact Silicon Labs Support.
13. Transmitter Register Write Command
Bit
15
1
14
0
13
1
12
1
11
1
10
0
9
0
8
0
7
t7
6
t6
5
t5
4
t4
3
t3
2
t2
1
t1
0
t0
POR
B8AAh
With this command, the controller can write 8 bits (t7 to t0) to the transmitter data register. Bit 7 (el) must be set in Configuration
Setting Command (page 15).
Multiple Byte Write with Transmit Register Write Command:
nSEL
SCK
SDI
TX BYTE1
TX BYTE2
TX BYTEn
Transmit Register Write
command
SDO
(REGISTER IT
in TX mode*)
Note: *The transceiver is in transmit (TX) mode when bit er is cleared using the Power Management Command
Note: Alternately the transmit register can be directly accessed by nFFS (pin6).
24
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
F2M03G-KIT-1 KIT EVAL G MOD SNGL (NO OEM BRD)
F2M03M-KIT-1 KIT EVAL M MOD SNGL (NO OEM BRD)
FA10323_K2S-W LENS FOR LUXEON K2
FA10539_SSS-W LENS FOR SEOUL P4
FA10643_TINA-M LENS FOR GOLDEN/PLATINUM DRAGON
FA10644_TINA-D LENS TINA DIFF 6.5DEG
FA10666_CXP-D LENS CXP DIFF SQ 16DEG
FA10678_CMC-SS LENS CMC SMOOTH SPOT MC-E
相关代理商/技术参数
EZLC-4421HB 制造商:Silicon Laboratories Inc 功能描述:EZLink 4421 development kit, 868/915MHz
EZLC-4421LB 制造商:Silicon Laboratories Inc 功能描述:EZLink 4421 development kit, 433MHz
EZLC4431B1-D434 功能描述:射频开发工具 EZLink Kit F930 Si4431 Rev B1 434MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
EZLC4431B1-D868 功能描述:射频开发工具 EZLink Kit F930 Si4431 Rev B1 868MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
EZLC-4432 HB 功能描述:射频开发工具 EZLink Fast Prototype Kit Hiband RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
EZLC-4432 HB/LB KIT 制造商:Silicon Laboratories Inc 功能描述:
EZLC-4432 LB 功能描述:射频开发工具 EZLink Fast Prototype Kit Lwband RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
EZLC4432B1-D470 功能描述:射频开发工具 EZLink Kit F930 Si4432 Rev B1 470MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V