- 您现在的位置：买卖IC网 > PDF目录18751 > TRM-433-LT (Linx Technologies Inc)TRANSCEIVER RF 433MHZ LT SERIES PDF资料下载
参数资料
| 型号： | TRM-433-LT |
| 厂商： | Linx Technologies Inc |
| 文件页数： | 18/44页 |
| 文件大小： | 0K |
| 描述： | TRANSCEIVER RF 433MHZ LT SERIES |
| 产品目录绘图： | TRM-433-LT Top TRM-433-LT Side |
| 特色产品： | LT Series Long-Range RF Transceiver Modules |
| 标准包装： | 34 |
| 系列： | LT |
| 频率： | 433MHz |
| 数据传输率 - 最大： | 10kbps |
| 调制或协议： | AM，OOK |
| 应用： | 双向传呼，ISM，机器人，遥测 |
| 功率 - 输出： | 10dBm |
| 灵敏度： | -112dBm |
| 电源电压： | 2.1 V ~ 3.6 V |
| 电流 - 接收： | 6.1mA |
| 电流 - 传输： | 12mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 表面安装 |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页当前第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页
Using the PDN Line
The Power Down (PDN) line can be used to power down the transceiver
without the need for an external switch. This line has an internal pull-down,
so when it is held low or simply left floating, the module will be inactive.
When the PDN line is pulled to ground, the transceiver will enter into a low-
current (~20μA) power-down mode. During this time the transceiver is off
and cannot perform any function. It may be useful to note that the startup
time coming out of power-down will be slightly less than when applying
V CC .
The PDN line allows easy control of the receiver state from external
components, such as a microcontroller. By periodically activating the
transceiver, sending data, then powering down, the transceiver’s average
current consumption can be greatly reduced, saving power in battery-
operated applications.
Note: If the T/R_SEL line is toggled when the transceiver is powered
down, internal logic will wake up and increase the current consumption
to approximately 350μA. When high, the T/R_SEL line will sink
approximately 15μA, so the lowest current consumption is obtained by
placing the LT into receive mode before powering down.
Using the RSSI Line
The transceiver’s Received Signal Strength Indicator (RSSI) line serves a
variety of functions. This line has a dynamic range of 80dB (typical) and
outputs a voltage proportional to the incoming signal strength. It should be
noted that the RSSI levels and dynamic range will vary slightly from part
to part. It is also important to remember that RSSI output indicates the
strength of any in-band RF energy and not necessarily just that from the
intended transmitter; therefore, it should be used only to qualify the level
and presence of a signal. Using RSSI to determine distance or data validity
is not recommended.
The RSSI output can be utilized during testing, or even as a product
feature, to assess interference and channel quality by looking at the RSSI
level with all intended transmitters shut off. RSSI can also be used in
direction-finding applications, although there are many potential perils to
consider in such systems. Finally, it can be used to save system power by
“waking up” external circuitry when a transmission is received or crosses a
– 14 –
相关PDF资料 |
PDF描述 |
|---|---|
| DP-241-7-10L | XFRMR PWR 115/230V 10VCT 5A LEAD |
| 7W-1.544MBB-T | OSC 1.544 MHZ 3.3V SMD |
| 701-W | TEST WEIGHT 5 LBS |
| FQPF7N80C | MOSFET N-CH 800V 6.6A TO-220F |
| 14A-56-20 | XFRMR PWR 115/230V 10V 5.6A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TRM5 | 制造商:Ferraz Shawmut 功能描述:Fuse Midget 5A 250V Slow Blow 2-Pin Cartridge Holder |
| TRM-5 | 制造商:Richco 功能描述:Rivet,Push,HS Black,1K/Bag 制造商:Richco 功能描述:RIVET BLACK .155-.180" HOLD |
| TRM50 | 功能描述:测试接头 TRM50,50 OHM Feed Thru Terminator BNC RoHS:否 制造商:Murata |
| TRM-5001AG | 制造商:OPTOWAY 制造商全称:Optoway Technology Inc 功能描述:5V / 1310 nm / 622 Mbps RoHS Compliant Optical Multi-Mode Transceiver |
| TRM-5001G | 制造商:OPTOWAY 制造商全称:Optoway Technology Inc 功能描述:5V / 1310 nm / 622 Mbps RoHS Compliant Optical Multi-Mode Transceiver |
发布紧急采购，3分钟左右您将得到回复。