參數(shù)資料
型號(hào)： CC2420SK
廠(chǎng)商： Electronic Theatre Controls, Inc.
英文描述： 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver
中文描述： 2.4 GHz IEEE 802.15.4標(biāo)準(zhǔn)/ ZigBee功能的RF收發(fā)器
文件頁(yè)數(shù)： 59/87頁(yè)
文件大?。?/td> 1418K
代理商： CC2420SK
SmartRF
CC2420
one quarter of the electrical wavelength
(
λ
/4). They are very easy to design and
can be implemented simply as a “piece of
wire” or even integrated into the PCB.
The length of the
λ
/4-monopole antenna is
given by:
L = 7125 / f
where f is in MHz, giving the length in cm.
An antenna for 2450 MHz should be 2.9
cm.
Non-resonant monopole antennas shorter
than
λ
/4 can also be used, but at the
expense of range. In size and cost critical
applications such an antenna may very
well be integrated into the PCB.
Enclosing the antenna in high dielectric
constant material reduces the overall size
of the antenna. Many vendors offer such
antennas intended for PCB mounting.
Helical antennas can be thought of as a
combination of a monopole and a loop
antenna. They are a good compromise in
size critical applications. Helical antennas
tend to be more difficult to optimize than
the simple monopole.
Loop antennas are easy to integrate into
the PCB, but are less effective due to
difficult impedance matching because of
their very low radiation resistance.
For low power applications the differential
antenna is recommended giving the best
range and because of its simplicity.
The antenna should be connected as
close as possible to the IC. If the antenna
is located away from the RF pins the
antenna should be matched to the feeding
transmission line (50
).
Chipcon AS
SmartRF
CC2420 Preliminary Datasheet (rev 1.2), 2004-06-09
Page 59 of 87
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CC2420-STB1 功能描述:射頻收發(fā)器 USE 839-CC2420R RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類(lèi)型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類(lèi)型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
CC2420-STR1 功能描述:射頻收發(fā)器 USE 839-CC2420T/R-R RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類(lèi)型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類(lèi)型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
CC2420ZDK 功能描述:Zigbee/802.15.4開(kāi)發(fā)工具 FULL CC2420 DEVELOPMENT KIT RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評(píng)估:EM35x 頻率:2.4 GHz 接口類(lèi)型:USB 工作電源電壓:
CC2420ZDK-PRO 功能描述:Zigbee/802.15.4開(kāi)發(fā)工具 FULL PRO CC2420 DEVELOPMENT KIT RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評(píng)估:EM35x 頻率:2.4 GHz 接口類(lèi)型:USB 工作電源電壓:
CC2420Z-RTB1 功能描述:射頻收發(fā)器 Sgl-Chip 2.4 GHz Zig Bee Ready RF Trnscvr RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類(lèi)型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類(lèi)型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
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