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1.9GHz Power Amplifier

Industry's Only DECT PA with Digital Power Control

Product Details

Key Features

Applications/Uses

Parametric specs for Power Amplifiers/Drivers
Frequency (MHz) (min) 1880
Frequency (MHz) (max) 1930
POUT (dBm) 20
Efficiency (%) 23
Low Power Shutdown Yes
Footprint (mm x mm) 3.0 x 3.0
Package/Pins TQFN/16
Budgetary
Price (See Notes)
0
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Simplified Block Diagram

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Parameters

Parametric specs for Power Amplifiers/Drivers
Frequency (MHz) (min) 1880
Frequency (MHz) (max) 1930
POUT (dBm) 20
Efficiency (%) 23
Low Power Shutdown Yes
Footprint (mm x mm) 3.0 x 3.0
Package/Pins TQFN/16
Budgetary
Price (See Notes)
0

Key Features

  • Frequency Range: 1880MHz–1930MHz
  • High +20dBm Output Power
  • 2-Bit Digital Power Control: Four Output Levels
  • Low 105mA Operating Current
  • 0.5µA Low-Power Shutdown Mode Current
  • +2.7V to +5V Single-Supply Operation
  • Small 3mm x 3mm, 16-Pin TQFN Package

Applications/Uses

  • 1.9GHz DECT (Cordless Phones and Wireless Headsets)

Description

The MAX2248 single-supply, low-voltage power amplifier (PA) IC is designed specifically for applications in the 1880MHz to 1930MHz frequency band. The PA provides a +20dBm (100mW) output power in the highest power mode.

The PA includes a digital power control circuit to greatly simplify control of the output power. Four digitally controlled output power levels are provided: from +4dBm to +20dBm. A digital input controls the active or shutdown operating modes of the PA. In the shutdown mode, the current reduces to 0.5µA.

The MAX2248 integrates the RF input and inter-stage matching to simplify application of the IC. Temperature and supply-independent biasing are also included to provide stable performance under all operating conditions.

The IC operates from a +2.7V to +5V single-supply voltage. No negative bias voltage is required. Current consumption is a modest 105mA at the highest power level.

This part is packaged in a 3mm x 3mm, 16-pin TQFN.

Simplified Block Diagram

MAX2248: Typical Application Circuit/Functional Block Diagram MAX2248: Typical Application Circuit/Functional Block Diagram 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 .