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LMH2100

Texas Instruments
Part Number LMH2100
Manufacturer Texas Instruments
Description Logarithmic Power Detector
Published Jul 14, 2021
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMH2100 SNWS020C – NOVEMBER 20...
Datasheet PDF File LMH2100 PDF File

LMH2100
LMH2100


Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMH2100 SNWS020C – NOVEMBER 2007 – REVISED OCTOBER 2015 LMH2100 50-MHz to 4-GHz 40-dB Logarithmic Power Detector for CDMA and WCDMA 1 Features •1 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 2 Applications • UMTS/CDMA/WCDMA RF Power Control • GSM/GPRS RF Power Control • PA Modules • IEEE 802.
11b, g (WLAN) 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.
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 RS and CS.
Typical Application: Feedback (R)C Low Pass Filter shows a detector with an additional feedback low pass filter.
Resistor RP is optional and will lower the Trans impedance gain (RTRANS).
The filter frequency is set with CP//CTRANS and RP//RTRANS.
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.
Typical Application: Output RC Low Pass Filter RF PA COUPLER ANTENNA 50 : Device Information(1) PART NUMBER PACKAGE B...


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