Datasheet > LMH2110

LMH2110

更新时间： 2024-01-13 09:07:49

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
4页	158K
描述
8 GHz Logarithmic RMS Power Detector with 45 dB Dynamic Range

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LMH2110 数据手册

January 7, 2010

LMH2110

PRODUCT BRIEF

8 GHz Logarithmic RMS Power Detector with 45 dB

Dynamic Range

General Description

Features

The LMH2110 is a 45 dB Logarithmic RMS power detector

particularly suited for accurate power measurement of mod-

ulated RF signals that exhibit large peak-to-average ratios,

i.e. large variations of the signal envelope. Such signals are

encountered in W-CDMA and LTE cell phones. The RMS

measurement topology inherently ensures a modulation in-

sensitive measurement.

Logarithmic root mean square response

■

45 dB linear-in-dB power detection range

Multi-band operation from 50 MHz to 8 GHz

LOG conformance better than ±0.5 dB

Highly temperature insensitive, ±0.25 dB

Modulation independent response, 0.08 dB

The device has an RF frequency range from 50 MHz to 8 GHz.

It provides an accurate, temperature and supply insensitive,

output voltage that relates linearly to the RF input power in

dBm. The LMH2110's excellent conformance to a logarithmic

response enables an easy integration by using slope and in-

tercept only, reducing calibration effort significantly. The de-

vice operates with a single supply from 2.7V to 5V. The

LMH2110 has an RF power detection range from -40 dBm to

5 dBm and is ideally suited for use in combination with a di-

rectional coupler. Alternatively a resistive divider can be used

as well.

Minimal Slope and Intercept variation

Shutdown functionality

Wide supply range from 2.7V to 5V

■

Tiny 6-bump microSMD package

Applications

Multi Mode, Multi band RF power control

■

GSM/EDGE

CDMA/CDMA2000

W-CDMA

—

The device is active for EN = High, otherwise it is in a low

power consumption shutdown mode. To save power and pre-

vent discharge of an external filter capacitance, the output

(OUT) is high-impedance during shutdown.

OFDMA

LTE

Infrastructure RF Power Control

■

The LMH2110 power detector is offered in a tiny 6-bump mi-

croSMD package.

“Notice: This document is not a datasheet. For more in-

formation regarding this product or to order samples

please contact your local National Semiconductor sales

office or visit http://www.national.com/support/dir.html.

Typical Application

30064804

300648

www.national.com

12 3 4

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与LMH2110相关器件

型号	品牌	获取价格	描述	数据表
LMH2110_1	NSC	获取价格	evaluation board is designed to help the evaluation
LMH2110TM	NSC	获取价格	8 GHz Logarithmic RMS Power Detector with 45 dB Dynamic Range
LMH2110TM/NOPB	TI	获取价格	具有 45dB 动态范围的 8GHz 对数 RMS 功率检测器 \| YFQ \| 6 \| -
LMH2110TMX	NSC	获取价格	8 GHz Logarithmic RMS Power Detector with 45 dB Dynamic Range
LMH2110TMX/NOPB	TI	获取价格	具有 45dB 动态范围的 8GHz 对数 RMS 功率检测器 \| YFQ \| 6 \| -
LMH2120	NSC	获取价格	Linear RMS power detector particularly suited for accurate
LMH2120	TI	获取价格	具有 40 dB 动态范围的 6GHz 线性 RMS 功率检测器
LMH2120UM	NSC	获取价格	IC TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PBGA6, MICRO SMD-6, Cellular Telephone Circ
LMH2120UM/NOPB	TI	获取价格	具有 40 dB 动态范围的 6GHz 线性 RMS 功率检测器 \| YFZ \| 6 \|
LMH2120UMX	NSC	获取价格	IC TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PBGA6, MICRO SMD-6, Cellular Telephone Circ

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