Analog Devices ADRV9029

Preliminary Technical
Data
Rev. PrA | Page 2 of 82
TABLE OF CONTENTS
Scope .............................................................................................................. 1
Digital Pre-Distortion ............................................................................. 3
Digital Front-End System Level Overview ................................ 3
DPD Introduction and Principle of Operation ........................ 4
Transceiver DPD Overview .............................................................. 5
DPD Algorithm Overview ................................................................. 7
Initializing pre-calibrated coefficients during start-up ... 11
DPD Sample Capture ....................................................................... 13
DPD Dynamics .................................................................................... 16
DPD Regularization .......................................................................... 21
DPD Robustness ................................................................................ 23
DPD Actuator Gain Monitoring for Robustness .................. 26
DPD Actuator Bypass ....................................................................... 31
DPD STATUS ........................................................................................ 32
Recommended Sequence for enabling the DPD tracking
calibration ............................................................................................ 33
DPD Stability Metrics Characterization .................................. 34
DPD Characterization for optimizing M-Threshold ........... 37
Typical Procedure to Set Up DPD Using GUI ........................ 38
Crest Factor Reduction (CFR) .......................................................... 42
CFR Algorithm Overview .............................................................. 43
Overview of Blocks used in CFR ................................................ 44
API Software Integration ............................................................... 45
Typical Procedure to set up CFR Using the GUI .................. 53
Closed Loop Gain Control (CLGC) .................................................. 60
CLGC Overview .................................................................................. 60
Elements Of CLGC ............................................................................. 60
CLGC Algorithm Overview ............................................................ 61
Enable The CLGC Tracking Calibration ................................... 62
CLGC Modes Of Operation ............................................................ 63
CLGC Measurement ......................................................................... 65
CLGC Tx Attenuation Control ...................................................... 67
CLGC API Summary.......................................................................... 70
CLGC Configuration Summary .................................................... 70
CLGC Status ......................................................................................... 70
CLGC Errors ......................................................................................... 71
CLGC Capture Errors ....................................................................... 72
Sequence For Enabling CLGC Tracking Calibration .......... 74
Case Study For Configuring Clgc Batch Sampling Period 75
CLGC Recommendations ............................................................... 80