Datasheet > LMH2100TMX/NOPB

LMH2100TMX/NOPB

更新时间： 2024-11-21 11:13:11

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 \| YFQ \| 6 \| -40 to 85

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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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LMH2100TMX/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LMH2100TM/NOPB	TI	类似代替	用于 CDMA 和 WCDMA 的 50MHz 至 4GHz 40dB 对数功率检测器 \|

与LMH2100TMX/NOPB相关器件

型号	品牌	获取价格	描述	数据表
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
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

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