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RF Power Detectors in UCSP

The Industry's Smallest Power Detection Circuit

Product Details

The MAX2205–MAX2208 wideband (800MHz to 2GHz) power detectors are ideal for GSM/EDGE (MAX2206), TDMA (MAX2207), and CDMA (MAX2205/MAX2208) applications. The MAX2206/MAX2207/MAX2208 take an RF signal from a directional coupler at the input, and output a highly repeatable voltage. The output voltage increases monotonically with increasing input power. The output is compensated for temperature and process shifts, reducing the worst-case variation to less than ±1dB at full power and ±2.5dB at the lowest power.

The MAX2206 features 40dB dynamic range, making it ideally suited to GSM/EDGE applications. The MAX2207 offers reduced current consumption for TDMA applications. The MAX2205/MAX2208 each have an integrated filter to allow for average power detection of CDMA signals over a 25dB dynamic range. The MAX2206/MAX2207/MAX2208 offer internal 50Ω termination for interfacing with a directional coupler. The MAX2205 has a high-impedance input to provide a low-loss resistive tap in CDMA applications. All devices allow the user to control the averaging time constant externally.

The MAX2205–MAX2208 come in a space-saving 2 x 2, 0.5mm-pitch UCSP™ and require only three external components.

Key Features

  • Space-Saving 2 x 2 UCSP Occupies Only 1mm2
  • Internal Temperature Compensation Gives ±0.3dB Detection Accuracy
  • No External Filter or Op Amp Required
  • Power-Detection Range
    • 40dB (MAX2206)
    • 25dB (MAX2205/MAX2207/2208)

Applications/Uses

  • Dual-Band CDMA/TDMA Handsets
  • Dual-Band GSM/EDGE Handsets
  • PA Modules
  • WCDMA Handsets

Simplified Block Diagram

MAX2205, MAX2206, MAX2207, MAX2208: Typical Operating Circuit MAX2205, MAX2206, MAX2207, MAX2208: Typical Operating Circuit Zoom icon

Technical Docs

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Parameters

Key Features

  • Space-Saving 2 x 2 UCSP Occupies Only 1mm2
  • Internal Temperature Compensation Gives ±0.3dB Detection Accuracy
  • No External Filter or Op Amp Required
  • Power-Detection Range
    • 40dB (MAX2206)
    • 25dB (MAX2205/MAX2207/2208)

Applications/Uses

  • Dual-Band CDMA/TDMA Handsets
  • Dual-Band GSM/EDGE Handsets
  • PA Modules
  • WCDMA Handsets

Description

The MAX2205–MAX2208 wideband (800MHz to 2GHz) power detectors are ideal for GSM/EDGE (MAX2206), TDMA (MAX2207), and CDMA (MAX2205/MAX2208) applications. The MAX2206/MAX2207/MAX2208 take an RF signal from a directional coupler at the input, and output a highly repeatable voltage. The output voltage increases monotonically with increasing input power. The output is compensated for temperature and process shifts, reducing the worst-case variation to less than ±1dB at full power and ±2.5dB at the lowest power.

The MAX2206 features 40dB dynamic range, making it ideally suited to GSM/EDGE applications. The MAX2207 offers reduced current consumption for TDMA applications. The MAX2205/MAX2208 each have an integrated filter to allow for average power detection of CDMA signals over a 25dB dynamic range. The MAX2206/MAX2207/MAX2208 offer internal 50Ω termination for interfacing with a directional coupler. The MAX2205 has a high-impedance input to provide a low-loss resistive tap in CDMA applications. All devices allow the user to control the averaging time constant externally.

The MAX2205–MAX2208 come in a space-saving 2 x 2, 0.5mm-pitch UCSP™ and require only three external components.

Simplified Block Diagram

MAX2205, MAX2206, MAX2207, MAX2208: Typical Operating Circuit MAX2205, MAX2206, MAX2207, MAX2208: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal