MAX2839/MAX2839AS 2.3GHz至2.7GH
max2839/max2839as 2.3ghz至2.7ghz mimo无线宽带rf收发器
the max2839as direct conversion, zero-if, rf transceiver is designed specifically for 2.3ghz to 2.7ghz 802.16e mimo mobile wimax systems. the device incorporates one transmitter and two receivers, with > 40db isolation between each receiver. the max2839as completely integrates all circuitry required to implement the rf transceiver function, providing rf to baseband receive path, and baseband to rf transmit path, vco, frequency synthesizer, crystal oscillator, and baseband/control interface. the device includes a fast-settling sigma-delta rf synthesizer with smaller than 40hz frequency steps and a crystal oscillator that allows the use of a low-cost crystal in place of a tcxo. the transceiver ic also integrates circuits for on-chip dc-offset cancellation, i/q error, and carrier leakage detection circuits. an internal transmit to receive loopback mode allows for receiver i/q imbalance calibration. the local oscillator i/q quadrature phase error can be digitally corrected in approximately 0.125° steps. only an rf bandpass filter (bpf), crystal, rf switch, pa, and a small number of passive components are needed to form a complete wireless broadband rf radio solution. the max2839as completely eliminates the need for an external saw filter by implementing on-chip programmable monolithic filters for both the receiver and transmitter, for all 2ghz and 802.16e profiles and wibro. the baseband filters along with the rx and tx signal paths are optimized to meet the stringent noise figure and linearity specifications. the device supports up to 2048 fft ofdm and implements programmable channel filters for 3.5mhz to 20mhz rf channel bandwidths. the transceiver requires only 2μs tx-rx switching time. the ic is available in a small wafer-level package (wlp) measuring 5.16mm x 3.66mm x 0.5mm.
2.3ghz to 2.7ghz wideband operation dual receivers for mimo, single transmitter complete rf transceiver, pa driver, and crystal oscillator 3.5db rx noise figure on each receiver with balun -35db rx evm for 64qam signal 0dbm linear ofdm transmit power (64qam) -70dbr tx spectral emission mask -35dbc lo leakage automatic rx dc offset correction monolithic low-noise vco with -39dbc integrated phase noise programmable rx i/q lowpass channel filters programmable tx i/q lowpass anti-aliasing filters sigma-delta fractional-n pll with 28.61hz minimum step size 62db tx gain control range with 1db step size, digitally controlled 95db rx gain control range with 1db step size, digitally controlled 60db analog rssi instantaneous dynamic range 4-wire spi™ digital interface i/q analog baseband interface digital tx/rx mode control digitally tuned crystal oscillator on-chip digital temperature sensor readout +2.7v to +3.6v transceiver supply low-power shutdown current small wlp package (5.16mm x 3.66mm x 0.5mm)
应用/使用
802.11g或n wlan，具有mrc或mimo下行链路
802.16e wimax™移动系统
韩国wibro™系统
专用无线宽带系统
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MAX2839/MAX2839AS 2.3GHz至2.7GH
利用ATmega48芯片和CMX865芯片实现串口转FSK的通信模块设计
世界人工智能专家共同签署，禁止开发致命型的杀人武器“杀人机器人”
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骁龙820处理器现在什么水平
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终于知道三星炸机原因了！但结果令中国用户气愤
3个月新增5家传感器企业被拉黑！这28家国产传感器实体被美国禁了！
MARVIS：来自Datalogic得利捷的零缺陷标记和代码100％可读一站式解决方案
the max2839as direct conversion, zero-if, rf transceiver is designed specifically for 2.3ghz to 2.7ghz 802.16e mimo mobile wimax systems. the device incorporates one transmitter and two receivers, with > 40db isolation between each receiver. the max2839as completely integrates all circuitry required to implement the rf transceiver function, providing rf to baseband receive path, and baseband to rf transmit path, vco, frequency synthesizer, crystal oscillator, and baseband/control interface. the device includes a fast-settling sigma-delta rf synthesizer with smaller than 40hz frequency steps and a crystal oscillator that allows the use of a low-cost crystal in place of a tcxo. the transceiver ic also integrates circuits for on-chip dc-offset cancellation, i/q error, and carrier leakage detection circuits. an internal transmit to receive loopback mode allows for receiver i/q imbalance calibration. the local oscillator i/q quadrature phase error can be digitally corrected in approximately 0.125° steps. only an rf bandpass filter (bpf), crystal, rf switch, pa, and a small number of passive components are needed to form a complete wireless broadband rf radio solution. the max2839as completely eliminates the need for an external saw filter by implementing on-chip programmable monolithic filters for both the receiver and transmitter, for all 2ghz and 802.16e profiles and wibro. the baseband filters along with the rx and tx signal paths are optimized to meet the stringent noise figure and linearity specifications. the device supports up to 2048 fft ofdm and implements programmable channel filters for 3.5mhz to 20mhz rf channel bandwidths. the transceiver requires only 2μs tx-rx switching time. the ic is available in a small wafer-level package (wlp) measuring 5.16mm x 3.66mm x 0.5mm.
2.3ghz to 2.7ghz wideband operation dual receivers for mimo, single transmitter complete rf transceiver, pa driver, and crystal oscillator 3.5db rx noise figure on each receiver with balun -35db rx evm for 64qam signal 0dbm linear ofdm transmit power (64qam) -70dbr tx spectral emission mask -35dbc lo leakage automatic rx dc offset correction monolithic low-noise vco with -39dbc integrated phase noise programmable rx i/q lowpass channel filters programmable tx i/q lowpass anti-aliasing filters sigma-delta fractional-n pll with 28.61hz minimum step size 62db tx gain control range with 1db step size, digitally controlled 95db rx gain control range with 1db step size, digitally controlled 60db analog rssi instantaneous dynamic range 4-wire spi™ digital interface i/q analog baseband interface digital tx/rx mode control digitally tuned crystal oscillator on-chip digital temperature sensor readout +2.7v to +3.6v transceiver supply low-power shutdown current small wlp package (5.16mm x 3.66mm x 0.5mm)
应用/使用
802.11g或n wlan，具有mrc或mimo下行链路
802.16e wimax™移动系统
韩国wibro™系统
专用无线宽带系统
Linux操作系统的采用率迎来了巨大的增长
基于工业互联网的仓储烟叶质量监测预警系统解决方案
STM32WB如何一次性烧写FUS+STACK+APP？
艾迈斯半导体推出针对智能手机OLED屏下放置优化的光学传感器
MIPI UniPro：主要的差异化功能、优势和验证挑战
MAX2839/MAX2839AS 2.3GHz至2.7GH
利用ATmega48芯片和CMX865芯片实现串口转FSK的通信模块设计
世界人工智能专家共同签署，禁止开发致命型的杀人武器“杀人机器人”
压阻式压力传感器
科学家用青蛙的活细胞制成了微型生物机器人
Manjaro 22.1 Linux的几个卓越功能介绍
报警装置的密码控制电路
PCB布局开始之前需要干什么
热电阻三根线怎么接 浅谈热电阻识别方法
骁龙820处理器现在什么水平
胎压监测哪个牌子好_胎压监测十大排名
信步科技SV3b-62026规格英文版
终于知道三星炸机原因了！但结果令中国用户气愤
3个月新增5家传感器企业被拉黑！这28家国产传感器实体被美国禁了！
MARVIS：来自Datalogic得利捷的零缺陷标记和代码100％可读一站式解决方案