Datasheet > LMH2121

LMH2121

更新时间： 2024-09-11 11:12:27

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描述
具有 40dB 动态范围的 3GHz 快速响应线性功率检测器

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LMH2121 数据手册

LMH2121

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SNVS876A –AUGUST 2012–REVISED MARCH 2013

LMH2121 3 GHz Fast-Responding Linear Power Detector with 40 dB Dynamic Range

Check for Samples: LMH2121

FEATURES

DESCRIPTION

The LMH2121 is an accurate fast-responding power

•

Linear Response

detector

/ RF envelope detector. Its response

•

40 dB Power Detection Range

Very Low Supply Current of 3.4 mA

Short Response Time of 165 ns

Stable Conversion Gain of 3.6 V/V_RMS

Multi-Band Operation from 100 MHz to 3 GHz

Very Low Conformance Error

High Temperature Stability of ±0.5 dB

Shutdown Functionality

between an RF input signal and DC output signal is

linear. The typical response time of 165 ns makes the

device suitable for an accurate power setting in

handsets during a rise time of RF transmission slots.

It can be used in all popular communications

standards: 2G/3G/4G/WAP.

The LMH2121 has an input range from −28 dBm to

+12 dBm. Over this input range the device has an

intrinsic high insensitivity for temperature, supply

voltage and loading. The bandwidth of the device is

from 100 MHz to 3 GHz, covering 2G/3G/4G/WiFi

wireless bands.

Supply Range from 2.6V to 3.3V

Package:

–

4-Bump DSBGA, 0.4mm Pitch

As a result of the unique internal architecture, the

device shows an extremely low part-to-part variation

of the detection curve. This is demonstrated by its low

intercept and slope variation as well as a very good

linear conformance. Consequently the required

characterization and calibration efforts are low.

APPLICATIONS

•

Multi Mode, Multi band RF power control

–

GSM/EDGE

CDMA

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

low power consumption shutdown mode. To save

power and allow for two detector outputs in parallel,

the output (OUT) is high impedance during shutdown.

W-CDMA

LTE

WAP

•

Tablets

The LMH2121 is offered in a tiny 4-bump DSBGA

package: 0.866 mm x 1.07 mm x 0.6 mm.

TYPICAL APPLICATION

COUPLER

ANTENNA

50W

100 pF

RF /EN

OUT

ADC

LMH2121

1 kW

ENABLE

GND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...31

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与LMH2121相关器件

型号	品牌	获取价格	描述	数据表
LMH2121TME	TI	获取价格	IC TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, Cellular Telephone Circuit
LMH2121TME/NOPB	TI	获取价格	具有 40dB 动态范围的 3GHz 快速响应线性功率检测器 \| YFQ \| 4 \| -4
LMH2121TMX/NOPB	TI	获取价格	具有 40dB 动态范围的 3GHz 快速响应线性功率检测器 \| YFQ \| 4 \| -4
LMH2180	TI	获取价格	LMH2180 75 MHz Dual Clock Buffer
LMH2180	NSC	获取价格	75 MHz Dual Clock Buffer
LMH2180_14	TI	获取价格	75 MHz Dual Clock Buffer
LMH2180SD	NSC	获取价格	75 MHz Dual Clock Buffer
LMH2180SD	TI	获取价格	LMH2180 75 MHz Dual Clock Buffer
LMH2180SD/NOPB	NSC	获取价格	IC 2180 SERIES, LOW SKEW CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8, ROHS
LMH2180SD/NOPB	TI	获取价格	75 MHz Dual Clock Buffer

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