Dac channel amplitude

joe052790 · November 11, 2024, 7:48am

Device: RFSoC 4x2 Kit
PYNQ Version: v3.0.1
When I set the transmitter channel amplitude to 0.7 with a frequency of 1500 MHz, the result is smaller than when I set the amplitude to 0.6 with the same frequency. What could be the reason for this?
I am using the base notebook `rfdc 02_rf_spectrum_analysis.ipynb

github.com

Xilinx/RFSoC-PYNQ/blob/master/boards/RFSoC4x2/base/notebooks/rfdc/02_rf_spectrum_analysis.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Spectrum Analysis on RFSoC\n",
    "----\n",
    "<div class=\"alert alert-box alert-info\">\n",
    "Please use Jupyter labs http://board_ip_address/lab for this notebook.\n",
    "</div>\n",
    "\n",
    "This notebook explores the frequency spectrum of the RF DCs.\n",
    "\n",
    "## Aims\n",
    "* Learn how to inspect and manipulate captured data from the RF ADCs.\n",
    "* Apply a window to time domain data as a preprocessing step for spectrum analysis.\n",
    "* Create a spectrum plot for visualization.\n",
    "\n",
    "## Table of Contents\n",

This file has been truncated. show original

amplitude=0.7、frequency=1500MHz

amplitude=0.6、frequency=1500MHz

amplitude=0.5、frequency=1500MHz

When I use rfsoc_spectrum_analysis.ipynb, the issue mentioned above does not occur.

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Dac channel amplitude

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