Part Number
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IDTF1358NBGI |
Manufacturer
|
IDT |
Description
|
DPD Demodulator |
Published
|
Apr 8, 2019 |
Detailed Description
|
DPD Demodulator for PA Linearization
GENERAL DESCRIPTION
This document describes the specification for the IDTF1358 Digi...
|
Datasheet
|
IDTF1358NBGI
|
Overview
DPD Demodulator for PA Linearization
GENERAL DESCRIPTION
This document describes the specification for the IDTF1358 Digital Pre-Distortion Demodulator for PA linearization.
This series of devices is offered in 3 variants to cover common UTRA bands.
COMPETITIVE ADVANTAGE
In typical basestation transmitters, digital pre-distortion is employed to improve the Transmitter performance.
The signal coming out of the PA is sampled and the incoming Tx chain I&Q data is pre-distorted to counteract the distortion inherent in the PA.
The PA signal is adjusted via a digital step attenuator to a lower level and then sub-sampled at an IF frequency of ~200 MHz which necessitates the need for a highly linear ...
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