收藏本站
Si4455
4.1.1. Configuration Table
The configuration table is a list of predefined configurations that have been optimized for performance and
validated by Silicon Labs. These configurations are listed for many common application conditions and so most
users will be able to find the configuration they need in this table. These configurations are set to provide optimized
performance for a given application and can be implemented with low design risk. Once the list item is selected,
the specific frequency, power level, and packet handler features can also be applied.
4.1.2. Radio Configuration Application
The Radio Configuration Application provides an intuitive interface for directly modifying the device configuration.
Using this control panel, the device parameters such as modulation type, data rate, frequency deviation, and any
packet related settings can be set. The program then takes these parameters and automatically determines the
appropriate device settings. This method allows the user to have complete flexibility in determining the
configuration of the device without the need to translate the system requirements into device specific properties.
The resulting configuration array is automatically generated and available for use in the user's program. The
resulting configuration array is obfuscated; therefore, its content changes every time a new array is generated,
even if the input parameters are the same.
4.2. Configuration Options
4.2.1. Frequency Band
The Si4455 can operate in the 283–350 MHz, 425–525 MHz, or 850–960 MHz bands. One of these three bands
will be selected during the configuration setup and then the specific transmission frequency that will be used within
this band can be selected.
4.2.2. Modulation Type
The Si4455 can operate using On/Off Keying (OOK), Frequency Shift Keying (FSK), or Gaussian Frequency Shift
Keying (GFSK). OOK modulation is the most basic modulation type available. It is the most power-efficient method
and does not require as high oscillator accuracy as FSK. FSK provides the best sensitivity and range performance,
but generally requires more precision from the oscillator used. GFSK is a version of FSK where the signal is
passed through a Gaussian filter, limiting its spectral width. As a result, the out-of-band components of the signal
are reduced.
The Si4455 also has an option for Manchester coding. This method provides a state transition at each bit and so
allows for more reliable clock recovery. Manchester code is available only when using the packet handler option
and, if selected, will be applied to the entire packet (the preamble pattern is set to continuous “1” if the Manchester
mode is enabled; therefore, the chip rate of the resulting preamble pattern is the same as for the rest of the packet).
The polarity can be configured to a “10” or “01”.
C lock
D ata
1
0
1
0
0
1
1
1
M anchester
Figure 6. Manchester Code Example
Rev 1.1
19
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
SI4462DY-T1-GE3 MOSFET N-CH 200V 1.15A 8-SOIC
SI4463-915-DK KIT DEV WIRELESS SI4463 915MHZ
SI4465ADY-T1-GE3 MOSFET P-CH 8V 13.7A 8SOIC
SI4466DY-T1-GE3 MOSFET N-CH 20V 9.5A 8-SOIC
SI4470EY-T1-GE3 MOSFET N-CH D-S 60V 8-SOIC
SI4472DY-T1-GE3 MOSFET N-CH D-S 150V 8-SOIC
SI4477DY-T1-GE3 MOSFET P-CH D-S 20V 8-SOIC
SI4483EDY-T1-GE3 MOSFET P-CH D-S 30V 8-SOIC
相关代理商/技术参数
Si4455-B1A-FMR 功能描述:射频收发器 Si4455 EZRadio Transceiver RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray
SI4455-B1A-GM 制造商:Silicon Laboratories Inc 功能描述:SI4455 EZRADIO TRANSCEIVER - Bulk
SI4455-C2A-GM 功能描述:IC RF TxRx + MCU General ISM < 1GHz 284MHz ~ 960MHz 20-VFQFN Exposed Pad 制造商:silicon labs 系列:- 包装:托盘 零件状态:有效 类型:TxRx + MCU 射频系列/标准:通用 ISM < 1GHz 协议:- 调制:FSK，GFSK，OOK 频率:284MHz ~ 960MHz 数据速率（最大值）:500kbps 功率 - 输出:13dBm（最小值） 灵敏度:-115dBm 存储容量:- 串行接口:SPI GPIO:4 电压 - 电源:1.8 V ~ 3.6 V 电流 - 接收:10.9mA 电流 - 传输:19mA ~ 24mA 工作温度:-40°C ~ 85°C 封装/外壳:20-VFQFN 裸露焊盘 标准包装:490
SI4455-C2A-GMR 功能描述:IC RF TXRX+MCU ISM<1GHZ 20-VFQFN 制造商:silicon labs 系列:* 包装:剪切带（CT） 零件状态:在售 封装/外壳:20-VFQFN 裸露焊盘 标准包装:1
SI4455DY 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:P-Channel 150-V (D-S) MOSFET
SI4455DY-T1-E3 功能描述:MOSFET 150V 8.9A 5.9W 295mohm @ 10V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube
SI4455DY-T1-GE3 功能描述:MOSFET 150V 8.9A 5.9W 295mohm @ 10V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube
SI4456DY-T1-E3 功能描述:MOSFET 40V 33A 7.8W 3.8mohm @ 10V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube