收藏本站
SX1211
WIRELESS & SENSING
3.3.7.3. Suggested PA Biasing and Matching
The recommended PA bias and matching circuit is illustrated below:
VR_PA
47nF
100nH
PA
RFIO
SAW
DC block
Antenna
port
Low-pass and DC block
Figure 12: Recommended PA Biasing and Output Matching
Please refer to section 7.5.3 of this document for the optimized matching arrangement for each frequency band.
3.3.8. Common Input and Output Front-End
The receiver and the transmitter share the same RFIO pin (pin 31). Figure 13 below shows the configuration of the
common RF front-end.
In transmit mode, the PA and the PA regulator are active, with the voltage on the VR_PA pin equal to the
nominal voltage of the regulator (1.8 V). The external inductance is used to bias the PA.
In receive mode, both PA and PA regulator are off and VR_PA is tied to ground. The external inductance LT1
is then used to bias the LNA.
VR_PA
Reg_PA
Rx_on
PA
To
RFIO
Antenna
LNA
Figure 13: Front-end Description
Rev 8 – February 2013
Page 22 of 92
www.semtech.com
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
SX1223SK868 KIT STARTER FOR XE1223 868MHZ
SX1231-31SKB915 TVS
SX1240SKA433 TVS
SX1701BI085TRT IC AMP 2.5GHZ 5.3V 16-MLPQ
TA002-10002 LED HEATSINK W/FAN 12V 40X10MM
TC620HEPA IC TEMP SNSR 5V DUAL TRIP 8-DIP
TC623CVOA713 IC TEMP SNSR 3V DUAL TRIP 8-SOIC
TC624VOA IC TEMP SNSR PROG 2.7V 8SOIC
相关代理商/技术参数
SX1212 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra-Low Power Integrated 300-510MHz Transceiver
SX1212-11SKA433 制造商:Semtech Corporation 功能描述:SX1212 433Mhz USB Kit With 2 SX1212-01SKA433SMA, Antenna Connector, RS232 Cable
SX1212-12SKA433 制造商:Semtech Corporation 功能描述:2 X SX1212SKA 制造商:Semtech Corporation 功能描述:Deluxe USB Starter Kit for SX1212, Includes Two USB Interface Boards at 433MHz 制造商:Semtech 功能描述:2 X SX1212SKA
SX1212-DK7A433 制造商:Semtech Corporation 功能描述:Evaluation Board for SX1212 Transceiver
SX1212IWLTRT 功能描述:IC TXRX 300MHZ-510MHZ 32-TQFN RoHS:是 类别:RF/IF 和 RFID >> RF 收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:30 系列:- 频率:4.9GHz ~ 5.9GHz 数据传输率 - 最大:54Mbps 调制或协议:* 应用:* 功率 - 输出:-3dBm 灵敏度:- 电源电压:2.7 V ~ 3.6 V 电流 - 接收:* 电流 - 传输:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 工作温度:-25°C ~ 85°C 封装/外壳:68-TQFN 裸露焊盘 包装:管件
SX1213 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra-Low Power Integrated UHF Receiver
SX1213IWLTRT 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:SX1213 Series 510 MHz 200 Kbps Ultra-Low Power Integrated UHF Receiver - TQFN-32
SX1223 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:425 - 475 MHz / 850 - 950 MHz Integrated UHF Transmitter