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| 型号： | RXM-418-LR_ |
| 厂商： | Linx Technologies Inc |
| 文件页数： | 30/40页 |
| 文件大小： | 0K |
| 描述： | RECEIVER 418MHZ LR SERIES |
| 标准包装： | 25 |
| 系列： | LR |
| 频率： | 418MHz |
| 灵敏度： | -112dBm |
| 数据传输率 - 最大： | 10 kbps |
| 调制或协议： | ASK，OOK |
| 应用： | ISM，车库门开启器，RKE |
| 电流 - 接收： | 5mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 特点： | 远程 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 70°C |
| 封装/外壳： | 16-SMD 模块 |
| 包装： | 管件 |
| 其它名称： | RXM-418-LR RXM-418-LR-S |
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Antenna Considerations
The choice of antennas is a critical and
often overlooked design consideration.
The range, performance, and legality of
an RF link are critically dependent upon
the antenna. While adequate antenna
performance can often be obtained by
trial and error methods, antenna design
and matching is a complex task.
A professionally designed antenna, such
Figure 26: Linx Antennas
as those from Linx, will help ensure
maximum performance and FCC compliance.
Linx transmitter modules typically have an output power that is slightly
higher than the legal limits. This allows the designer to use an inefficient
antenna, such as a loop trace or helical, to meet size, cost, or cosmetic
requirements and still achieve full legal output power for maximum range. If
an efficient antenna is used, then some attenuation of the output power will
likely be needed. This can easily be accomplished by using the LADJ line or
a T-pad attenuator. For more details on T-pad attenuator design, please see
Application Note AN-00150.
A receiver antenna should be optimized for the frequency or band in which
the receiver operates and to minimize the reception of off-frequency
signals. The efficiency of the receiver’s antenna is critical to maximizing
range performance. Unlike the transmitter antenna, where legal operation
may mandate attenuation or a reduction in antenna efficiency, the receiver’s
antenna should be optimized as much as is practical.
It is usually best to utilize a basic quarter-wave whip until your prototype
product is operating satisfactorily. Other antennas can then be evaluated
based on the cost, size, and cosmetic requirements of the product. You
may wish to review Application Note AN-00500 “Antennas: Design,
Application, Performance” and Application Note AN-00501 “Understanding
Antenna Specifications and Operation.”
– 26 –
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RXM-418-LR_ | 功能描述:RECEIVER 418MHZ LR SERIES RoHS:是 类别:RF/IF 和 RFID >> RF 接收器 系列:LR 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| RXM-418-RM | 功能描述:RECEIVER RF 418MHZ RoHS:否 类别:RF/IF 和 RFID >> RF 接收器 系列:RM 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 09/Jan/2012 标准包装:50 系列:* 频率:850MHz ~ 2.175GHz 灵敏度:- 数据传输率 - 最大:- 调制或协议:- 应用:* 电流 - 接收:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特点:- 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 85°C 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| RXM430-408 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| RXM-433-LC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LC SERIES TRANSMITTER MODULE |
| RXM-433-LC-P | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LC SERIES RECEIVER MODULE DATA |
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