MAX® 10 FPGA Development Kit User Guide

ID 683460
Date 11/21/2024
Public
Document Table of Contents

A.8.2. Digital-to-Analog Converter

The MAX® 10 FPGA comes with one external 16 bit digital-to-analog converter (DAC) device with an SMA output.

The MAX® 10 FPGA has two 12-bit successive approximation register (SAR) ADCs with sample rate of 1 MSps. One potentiometer is connected to ADC1_CH6 to function as a user-controlled DC, and it is connected to 2.5 V. To ensure performance evaluation of the ADCs, the MAX® 10 FPGA Development Kit has separate analog supply and split partition for analog ground. An external 16-bit single channel DAC is connected to Bank 7 to enable closed loop evaluation. The DAC uses a 3-wire serial interface that operates at clock rates up to 30 MHz. It is compatible with standard serial peripheral interface (SPI), quad SPI, Microwire, and digital signal processor (DSP) interfaces.

Table 29.  Digital-to-Analog Converter Signals

Board Reference

(U33)

Signal Name I/O Standard MAX® 10 FPGA Pin Number Description
U33.5 DAC_SYNC 3.3 V U1.B10 Level-triggered control input (active LOW). Frame synchronization signal for the input data.
U33.6 DAC_SCLK 3.3 V A7 Serial clock input
U33.7 DAC_DIN 3.3 V A8 Serial data input