SBAU399 May   2022

 

  1.   Trademarks
  2. 1EVM Overview
    1. 1.1 Features
    2. 1.2 Introduction
  3. 2Analog Interface
    1. 2.1 Analog Inputs
  4. 3Digital Interface
  5. 4Power Supplies and Device Operation
    1. 4.1 AVDD and DVDD Inputs: J2 and J3
    2. 4.2 Device Operation
  6. 5Layout, Bill of Materials, and Schematic
    1. 5.1 Printed Circuit Board Layout
    2. 5.2 Bill of Materials
    3. 5.3 Schematic

4.2 Device Operation

When the analog power supplies are applied to the AMC1333EVM, the digital outputs become active. The AMC1333 uses its own internal modulator clock. Screw terminal J4 has the connections as listed in Table 3-1.

An analog input signal can be applied directly at screw terminal J1; see Figure 2-1 and Table 2-1 for details. The linear analog input range, (VIN+) – (VIN–), is ±1 V for the AMC1333.

For the AMC1333, when the input voltage approaches the maximum input level of +1 V, the 1's density of the modulator output approaches 92%. Likewise, when the input voltage approaches the lower limit of –1 V, the 1's density is approximately 8%.