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Lectures on Numerical Methods in Bifurcation Problems
Methods for Finding Zeros in Polynomials
Lectures on Stochastic Flows and Applications
Educational Psychology by Edward L. Thorndike
The Last Days of Tolstoy by V. G. Chertkov
Globalization and Responsibility
Lectures on Siegel Modular Forms and Representation by Quadratic Forms
Lectures on Topics In One-Parameter Bifurcation Problems
History of the Incas by Pedro Sarmiento de Gamboa
Linear Algebra: Theorems and Applications
Lectures on Stochastic Differential Equations and Malliavin Calculus
A Short Biographical Dictionary of English Literature
Lectures on Sieve Methods and Prime Number Theory
Dollars and Sense by William Crosbie Hunter
The Theory of the Theatre by Clayton Hamilton
The Mathematics of Investment
Occupiers of Wall Street: Losers or Game Changers
The Solution of the Pyramid Problem
Lectures on Moduli of Curves
Walden by Henry David Thoreau
Methods for Finding Zeros in Polynomials
Lectures on Stochastic Flows and Applications
Educational Psychology by Edward L. Thorndike
The Last Days of Tolstoy by V. G. Chertkov
Globalization and Responsibility
Lectures on Siegel Modular Forms and Representation by Quadratic Forms
Lectures on Topics In One-Parameter Bifurcation Problems
History of the Incas by Pedro Sarmiento de Gamboa
Linear Algebra: Theorems and Applications
Lectures on Stochastic Differential Equations and Malliavin Calculus
A Short Biographical Dictionary of English Literature
Lectures on Sieve Methods and Prime Number Theory
Dollars and Sense by William Crosbie Hunter
The Theory of the Theatre by Clayton Hamilton
The Mathematics of Investment
Occupiers of Wall Street: Losers or Game Changers
The Solution of the Pyramid Problem
Lectures on Moduli of Curves
Walden by Henry David Thoreau
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ia4421中文资料
Posted on 2010-04-27
|
最容易设计的多频段FSK无线收发芯片IA4221,IA4320,IA4421
产品主要特点： 单片全集成 频段：315, 433, 868, and 915 MHz bands. 高精度锁相环（PLL）， 多通道频率捷变功能 调制模式： FSK，支持OOK 传输速率： 0～ 256k bps 发射功率：3dBm(IA4220)、8dBm (IA4221) （2mW、6.5mW） 接收灵敏度： -109 dBm @BER 10-3, BW=67 kHz 自适应天线调谐。（非常重要，生产时无需统调） SPI接口 支持EEPROM模式 极低的待机电流：0.3uA 接收工作电流：6-10mA 具备低电池检测功能 定时唤醒功能 (1ms-几天) 电压范围： 2.2V to 5.4 V 工作频率为国际通用的ISM频段，采用低发射功率、高接收灵敏度的设计，所以使 用时对周围干扰很小，无需申请许可证，传输距离一般在几十米到2百米。与蓝芽 产品相比，具有成本更低、功耗更低、协议简单、软件开发更简易等特点。 IA 4221 发射 TSOP16 IA 4320 接收 TSOP16 IA 4421 发射接受一体 TSOP16
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2.5 out of 5 by Book123 |
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