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參數(shù)資料
| 型號(hào)： | LMV225 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | RF Power Detector for CDMA and WCDMA |
| 中文描述： | RF功率檢測(cè)器的CDMA和WCDMA |
| 文件頁(yè)數(shù)： | 1/21頁(yè) |
| 文件大?。?/td> | 1090K |
| 代理商： | LMV225 |
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LMV225/LMV226/LMV228
RF Power Detector for CDMA and WCDMA
General Description
The LMV225/LMV226/LMV228 are 30 dB RF power detec-
tors intended for use in CDMA and WCDMA applications.
The device has an RF frequency range from 450 MHz to 2
GHz. It provides an accurate temperature and supply com-
pensated output voltage that relates linearly to the RF input
power in dBm. The circuit operates with a single supply from
2.7V to 5.5V. The LMV225/LMV226/LMV228 have an inte-
grated filter for low-ripple average power detection of CDMA
signals with 30 dB dynamic range. Additional filtering can be
applied using a single external capacitor.
The LMV225 has an RF power detection range from –30
dBm to 0 dBm and is ideally suited for direct use in combi-
nation with resistive taps. The LMV226/LMV228 have a de-
tection range from –15 dBm to 15 dBm and are intended for
use in combination with a directional coupler. The LMV226 is
equipped with a buffered output which makes it suitable for
GSM, EDGE, GPRS and TDMA applications.
The device is active for Enable = HI, otherwise it is in a low
power consumption shutdown mode. During shutdown the
output will be LOW. The output voltage ranges from 0.2V to
2V and can be scaled down to meet ADC input range re-
quirements.
The LMV225/LMV226/LMV228 power detectors are offered
in the small 1.0 mm x 1.0 mm X 0.6 mm micro SMD pack-
age. The LMV225 and the LMV228 are also offered in the
2.2 mm x 2.5 mm x 0.8 mm LLP package.
Features
n
30 dB linear in dB power detection range
n
Output voltage range 0.2 to 2V
n
Logic low shutdown
n
Multi-band operation from 450 MHz to 2000 MHz
n
Accurate temperature compensation
n
Packages:
— micro SMD package 1.0 mm x 1.0 mm x 0.6 mm
— LLP package 2.2 mm x 2.5 mm x 0.8 mm (LMV225
and LMV228)
Applications
n
CDMA RF power control
n
WCDMA RF power control
n
CDMA2000 RF power control
n
PA modules
Typical Application
LMV225
20076001
LMV226/LMV228
20076046
March 2005
L
2005 National Semiconductor Corporation
DS200760
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMV226 | RF Power Detector for CDMA and WCDMA |
| LMV226TL | RF Power Detector for CDMA and WCDMA |
| LMV226TLX | RF Power Detector for CDMA and WCDMA |
| LMV228 | RF Power Detector for CDMA and WCDMA |
| LMV228SD | RF Power Detector for CDMA and WCDMA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMV225SD | 功能描述:射頻檢測(cè)器 RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel |
| LMV225SD/NOPB | 功能描述:射頻檢測(cè)器 Sgl Rf Detector W/ LLP RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel |
| LMV225SDEVAL | 功能描述:射頻開(kāi)發(fā)工具 LMV225SD EVAL BOARD RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評(píng)估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| LMV225SDX | 制造商:Texas Instruments 功能描述:RF Power Detector for CDMA and WCDMA 6-Pin LLP EP T/R |
| LMV225SDX/HALF | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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