| TI CC2590低功耗2.4GHz前端方案 |
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| 作者：未知 来源：TI 点击数：136 更新时间：2008-10-10 |
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TI公司的CC2590是低功耗低电压高性能2.4GHz RF前端,输出功率高达14dBm(25mW),内部集成了开关,匹配网络,平衡/不平衡(Balun)变压器,LNA,功率放大器和电感.工作电压2.0V到3.6V,可用于所有的2.4GHz ISM频段系统,无线传感器网络和工业系统, ZigBee和IEEE 802.15.4系统,无线消费类电子产品和无线音频系统.本文介绍了CC2590的主要特性, 方框图, 评估模块和CC2590 + CC24xx 应用电路, CC2590+ CC2500, CC2510, 或CC2511 应用电路以及CC2590+ CC2520应用电路.
CC2590 is a cost-effective and high performance RF Front End for low-power and low-voltage 2.4-GHz wireless applications.
CC2590 is a range extender for all existing and future 2.4-GHz low-power RF transceivers, transmitters and System-on-Chip products from Texas Instruments.
CC2590 increases the link budget by providing a power amplifier for increased output power, and an LNA with low noise figure for improved receiver sensitivity.
CC2590 provides a small size, high output power RF design with its 4x4-mm QFN-16 package.
CC2590 contains PA, LNA, switches, RF-matching, and balun for simple design of high performance wireless applications.
CC2590主要特性:
Seamless Interface to 2.4-GHz Low Power RF Devices from Texas Instruments
Up to +14-dBm (25mW) Output Power
6-dB Typical Improved Sensitivity on CC24xx and CC2500, CC2510, and CC2511
Few External Components
Integrated Switches
Integrated Matching Network
Integrated Balun
Integrated Inductors
Integrated PA
Integrated LNA
Digital Control of LNA Gain by HGM Pin
100-nA in Power Down (EN = PAEN = 0)
Low Transmit Current Consumption
22-mA at 3-V for +12-dBm, PAE = 23%
Low Receive Current Consumption
3.4-mA for High Gain Mode
1.8-mA for Low Gain Mode
4.6-dB LNA Noise Figure, including T/R Switch and external antenna match
RoHS Compliant 4×4-mm QFN-16 Package
2.0-V to 3.6-V Operation
CC2590应用:
All 2.4-GHz ISM Band Systems
Wireless Sensor Networks
Wireless Industrial Systems
IEEE 802.15.4 and ZigBee Systems
Wireless Consumer Systems
Wireless Audio Systems
图1.CC2590方框图
图2.CC2590EM 评估模块
图3.CC2590 + CC24xx 应用电路
图4.CC2590+ CC2500, CC2510, 或CC2511 应用电路
图5.CC2590+ CC2520应用电路
详情请见:
>http://focus.ti.com/lit/ds/symlink/cc2590.pdf
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