Datasheet > LMH2100

LMH2100

更新时间： 2023-09-03 20:32:35

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
49页	1612K
描述
用于 CDMA 和 WCDMA 的 50MHz 至 4GHz 40dB 对数功率检测器

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LMH2100

SNWS020C –NOVEMBER 2007–REVISED OCTOBER 2015

LMH2100 50-MHz to 4-GHz 40-dB Logarithmic Power Detector for CDMA and WCDMA

1 Features

3 Description

The LMH2100 is a 40-dB RF power detector intended

for use in CDMA and WCDMA applications. The

device has an RF frequency range from 50 MHz to

4 GHz. It provides an accurate temperature and

supply compensated output voltage that relates

linearly to the RF input power in dBm. The circuit

operates with a single supply from 2.7 V to 3.3 V.

•

Supply Voltage: 2.7 V to 3.3 V

Output Voltage: 0.3 V to 2 V

40-dB Linear in dB Power Detection Range

Shutdown

Multi-Band Operation from 50 MHz to 4 GHz

0.5-dB Accurate Temperature Compensation

External Configurable Output Filter Bandwidth

0.4-mm Pitch DSBGA Package

The LMH2100 has an RF power detection range from

−45 dBm to −5 dBm, and is ideally suited for direct

use in combination with a 30-dB directional coupler.

Additional low-pass filtering of the output signal can

be realized by means of an external resistor and

capacitor. Typical Application: Output RC Low Pass

Filter shows a detector with an additional output low

pass filter. The filter frequency is set with R_Sand C_S.

2 Applications

•

UMTS/CDMA/WCDMA RF Power Control

GSM/GPRS RF Power Control

PA Modules

Typical Application: Feedback (R)C Low Pass Filter

shows a detector with an additional feedback low

pass filter. Resistor R_Pis optional and will lower the

Trans impedance gain (R_TRANS). The filter frequency

IEEE 802.11b, g (WLAN)

is set with C_P//C_TRANSand R_P//R_TRANS

The device is active for Enable = High; otherwise it is

in a low power-consumption shutdown mode. To save

power and prevent discharge of an external filter

capacitance, the output (OUT) is high-impedance

during shutdown.

Device Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (MAX)

LMH2100

DSBGA (6)

1.274 mm × 0.874 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application: Output RC Low Pass Filter

Typical Application: Feedback (R)C Low Pass

Filter

COUPLER

ANTENNA

COUPLER

ANTENNA

50 W

VDD

50 W

VDD

R_S

RFIN

OUT

REF

RFIN

C_S

OUT

ADC

LMH2100

R_P

C_P

ADC

GND

REF

GND

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...49

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与LMH2100相关器件

型号	品牌	获取价格	描述	数据表
LMH2100TM	NSC	获取价格	50 MHz to 4 GHz 40 dB Logarithmic Power Detector for CDMA and WCDMA
LMH2100TM/NOPB	TI	获取价格	用于 CDMA 和 WCDMA 的 50MHz 至 4GHz 40dB 对数功率检测器 \|
LMH2100TMX	NSC	获取价格	50 MHz to 4 GHz 40 dB Logarithmic Power Detector for CDMA and WCDMA
LMH2100TMX/NOPB	TI	获取价格	用于 CDMA 和 WCDMA 的 50MHz 至 4GHz 40dB 对数功率检测器 \|
LMH2110	NSC	获取价格	8 GHz Logarithmic RMS Power Detector with 45 dB Dynamic Range
LMH2110	TI	获取价格	具有 45dB 动态范围的 8GHz 对数 RMS 功率检测器
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

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