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參數(shù)資料
| 型號(hào)： | AT86RF211S |
| 廠商： | Atmel Corp. |
| 英文描述： | Transceiver for ISM Radio Applications |
| 中文描述： | 收發(fā)器ISM無線應(yīng)用 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 132K |
| 代理商： | AT86RF211S |
Data Demodulation and Crystal Selection for the
AT86RF211S
1.
This document gives an overview of the receiver chain of the AT86RF211S and its
associated embedded features:
Introduction
Discriminator: Demodulation of the RF signal (principle, measurement/tuning of
output voltage)
Data slicer:From analog to digital world (different modes of functioning, how to set
up the data slicer threshold)
It also emphasizes the new possibilities of the AT86RF211S
Selection of lower cost crystal
Data rate up to 128 kbps
Frequency deviation wider than ±100 kHz
2.
From Analog to Digital
2.1
Demodulation
2.1.1
The FSK modulation used by the AT86RF211S consists in coding each bit as follows:
Principle
“0”: transmission of an RF signal at a frequency F0
“1”: transmission of an RF signal at a frequency F1
The channel frequency (or carrier) is the middle frequency Fc = (F0 + F1)/2
F1 - Fc = Fc - F0 is called the frequency deviation
The receiver therefore has the overall task to:
Down-convert the signal at lower frequencies (for filtering purposes): 10.7 MHz
and 455 kHz
Convert the frequencies into voltages (= discriminator)
Make a decision to separate “0” from “1” levels (= data slicer)
AT86RF211S
FSK
Transceiver for
ISM Radio
Applications
Application Note
Rev. 5418A–WIRE–04/05
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT86RF211SAH | 制造商:e2v technologies 功能描述:FSK TRANSCEIVER FOR ISM RADIO - Trays |
| AT86RF211SAH-R | 功能描述:IC RF TXRX FSK 400-950MHZ 48TQFP RoHS:否 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
| AT86RF211SAHW | 功能描述:IC RF TXRX FSK 400-950MHZ 48TQFP RoHS:是 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
| AT86RF211SAHW-R | 功能描述:IC RF TXRX FSK 400-950MHZ 48TQFP RoHS:是 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件 |
| AT86RF211SDB915LT | 功能描述:BOARD DAUGHTR W/AT86RF211/915MHZ 制造商:microchip technology 系列:- 零件狀態(tài):停產(chǎn) 類型:收發(fā)器 頻率:915MHz 配套使用產(chǎn)品/相關(guān)產(chǎn)品:AT86RF211 所含物品:板 標(biāo)準(zhǔn)包裝:1 |
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