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Digital Predistortion (DPD)

In Detail
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affarii logoDevelopers of radio equipment face increased challenges when designing efficient and linear amplifiers for the high peak to average signals.

Affarii DPD Block Diagram Digital Predistortion has become the industry standard for the correction of non-linearities in high power RF devices. By actively tracking and applying an inverse to the amplifier non-linearity, Digital Predistortion allows RF transistors to be operated linearly at their peak saturated power, improving amplifier efficiency and cost

 

Key Features

  • Corrects analog distortion in the PA device, reducing size, power consumption and cost
  • Compatible with Class AB and Doherty amplifiers using LDMOS and GaN transistors
  • Memory effect adaptive pre-distortion core
  • Support 20MHz modulation bandwidth
  • Provides 20-30dB ACP correction capability
  • Adaptive transmit equalizer and AQM correction
     

Affarii DPD Linearized PA Affarii DPD Input Output

Performance and Resource Utilization

LatticeECP31
Configuration Slices MULT 18x18 sysMEM EBRs fMAX (MHz)
20Mhz MCPA 4K 43 70 180

1. Performance and utilization characteristics are generated using LFE3-70E-8FN484.

Ordering Information

For more information on this IP or for pricing and availability please contact Affarii.