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Radiofrecuencia y microondas
Detectores de potencia de RF

LMV221

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Detector de potencia logarítmica de 40 dB de 50 MHz a 3,5 GHz para CDMA y WCDMA

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LMV221

ACTIVO
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Detalles del producto

Type Logarithmic Frequency (min) (MHz) 50 Frequency (max) (MHz) 3500 Dynamic range (typ) (dB) 40 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 3.3 Current consumption (mA) 7.2 Number of channels 1 Operating temperature range (°C) -40 to 85 Rating Catalog
Type Logarithmic Frequency (min) (MHz) 50 Frequency (max) (MHz) 3500 Dynamic range (typ) (dB) 40 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 3.3 Current consumption (mA) 7.2 Number of channels 1 Operating temperature range (°C) -40 to 85 Rating Catalog
WSON (NGF) 6 5.5 mm² 2.5 x 2.2
  • 2.7-V to 3.3-V Supply Voltage
  • 40-dB Linear in dB Power Detection Range
  • 0.3-V to 2-V Output Voltage Range
  • Shutdown
  • Multi-Band Operation from 50 MHz to 3.5 GHz
  • 0.5-dB Accurate Temperature Compensation
  • External Configurable Output Filter Bandwidth
  • 2.5 mm × 2.2 mm × 0.8 mm 6-pin WSON Package
  • 2.7-V to 3.3-V Supply Voltage
  • 40-dB Linear in dB Power Detection Range
  • 0.3-V to 2-V Output Voltage Range
  • Shutdown
  • Multi-Band Operation from 50 MHz to 3.5 GHz
  • 0.5-dB Accurate Temperature Compensation
  • External Configurable Output Filter Bandwidth
  • 2.5 mm × 2.2 mm × 0.8 mm 6-pin WSON Package

The LMV221 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 3.5 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 LMV221 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 achieved by means of an external resistor and capacitor. shows a detector with an additional output low pass filter. The filter frequency is set with RS and CS.

shows a detector with an additional feedback low pass filter. Resistor RP is optional and lowers 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.

For all available packages, see the orderable addendum at the end of the data sheet.

The LMV221 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 3.5 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 LMV221 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 achieved by means of an external resistor and capacitor. shows a detector with an additional output low pass filter. The filter frequency is set with RS and CS.

shows a detector with an additional feedback low pass filter. Resistor RP is optional and lowers 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.

For all available packages, see the orderable addendum at the end of the data sheet.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet LMV221 50-MHz to 3.5-GHz 40-dB Logarithmic Power Detector for CDMA and WCDMA datasheet (Rev. D) PDF | HTML 01 jun 2016
Certificate LMV221EVM EU Declaration of Conformity (DoC) 16 dic 2024
User guide Evaluation Board for the LMV221 Logarithmic Power Detector (Rev. A) 22 abr 2013

Diseño y desarrollo

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