MICRF219 300MHz to 450MHz ASK
micrf219 300mhz to 450mhz ask receiver with rssi, auto-poll, bit-check and squelch
general description
the micrf219 is a 300mhz to 450mhz super-heterodyne, image-reject, rf receiver with automatic gain control, ook/ask demodulator and analog rssi output. the device integrates auto-poll, valid bit-check, squelch and desense features. it only requires a crystal and a minimum number of external components to implement. it is ideal for low-cost, low-power, rke, tpms, and remote actuation applications.
the micrf219 achieves -110dbm sensitivity at a data rate of 1kbps (manchester encoded). four demodulator filter bandwidths are selectable in binary steps from 1625hz to 13khz at 433mhz, allowing the device to support data rates to 10kbps. the device operates from a supply voltage of 3.0v to 3.6v, and consumes 4.0ma of supply current at 315mhz and 6.0ma at 433.92mhz. a shutdown mode reduces supply current to 0.5ua. the auto-polling feature allows the micrf219 to sleep and poll for user defined periods, thus further reducing supply current. the valid bit-check feature, when enabled in auto-poll mode, fully awakes the receiver and sends bits to the microcontroller once a valid number of bits are detected. during normal operation an optional squelch feature disables the data output until valid bits are detected. an optional desense feature reduces gain by 6db to 42db, distancing the receiver from distantly placed, undesired transmitters.
functional diagram
features
–110dbm sensitivity at 1kbps with ber 10e-02 supports data rates up to 10kbps at 433.92mhz 25db image-reject mixer no if filter required 60db analog rssi output 3.0v to 3.6v supply voltage range 4.0ma supply current at 315mhz (continuous receive) 6.0ma supply current at 434mhz (continuous receive) 0.5ua supply current in shutdown mode optional auto-polling (sleep mode, current < 0.1ma) optional valid bit-check in auto-poll mode optional programmable 6db to 42db desense optional data output squelch until valid bits detected 16-pin qsop package (4.9mm x 6.0mm) 2kv hbm esd rating
mic4724 pdf,mic4724 datasheet
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MICRF219 300MHz to 450MHz ASK
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general description
the micrf219 is a 300mhz to 450mhz super-heterodyne, image-reject, rf receiver with automatic gain control, ook/ask demodulator and analog rssi output. the device integrates auto-poll, valid bit-check, squelch and desense features. it only requires a crystal and a minimum number of external components to implement. it is ideal for low-cost, low-power, rke, tpms, and remote actuation applications.
the micrf219 achieves -110dbm sensitivity at a data rate of 1kbps (manchester encoded). four demodulator filter bandwidths are selectable in binary steps from 1625hz to 13khz at 433mhz, allowing the device to support data rates to 10kbps. the device operates from a supply voltage of 3.0v to 3.6v, and consumes 4.0ma of supply current at 315mhz and 6.0ma at 433.92mhz. a shutdown mode reduces supply current to 0.5ua. the auto-polling feature allows the micrf219 to sleep and poll for user defined periods, thus further reducing supply current. the valid bit-check feature, when enabled in auto-poll mode, fully awakes the receiver and sends bits to the microcontroller once a valid number of bits are detected. during normal operation an optional squelch feature disables the data output until valid bits are detected. an optional desense feature reduces gain by 6db to 42db, distancing the receiver from distantly placed, undesired transmitters.
functional diagram
features
–110dbm sensitivity at 1kbps with ber 10e-02 supports data rates up to 10kbps at 433.92mhz 25db image-reject mixer no if filter required 60db analog rssi output 3.0v to 3.6v supply voltage range 4.0ma supply current at 315mhz (continuous receive) 6.0ma supply current at 434mhz (continuous receive) 0.5ua supply current in shutdown mode optional auto-polling (sleep mode, current < 0.1ma) optional valid bit-check in auto-poll mode optional programmable 6db to 42db desense optional data output squelch until valid bits detected 16-pin qsop package (4.9mm x 6.0mm) 2kv hbm esd rating
mic4724 pdf,mic4724 datasheet
智能家居发展有什么原则
浅谈板对板连接器公母座双排对插端子的结构作用
工程监测仪器振弦采集仪的新技术研究与创新方面
华为正式推出了华为畅享9S和华为畅享9e手机
如何进行自动驾驶紧急制动测试
MICRF219 300MHz to 450MHz ASK
电感和电容串并连接以后电感值如何取？电感短路测试设计
是真的吗？未来智能手机无需连接手机基站
谐波电压的治理刻不容缓，以防止影响生产效率
Maxim推出结构紧凑的双输出晶体振荡器
贞光科技代理品牌_3PEAK运算放大器_隔离芯片_电源管理
Xilinx和中国移动强强联手，部属虚拟化5G无线网络
阿里、百度等郑重承诺：将严格落实APP侵犯用户权益整治工作
色同步选通电路
当均值不等式遇上高等数学会怎样
线条之美代替“白带”异常 三星C9Pro微缝天线技术
小米杂货铺又添新玩物！小米网络音响发布，399贵吗？
2020年1-11月全国锂离子电池产量166.8亿只，同比增长13%
电动机为什么要电容器
照相机闪光灯的工作原理