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Introduction
The EVALST-ISOSD61L/61T is a full featured evaluation board designed to allow the user to evaluate all the features of the
ISOSD61 and ISOSD61L isolated analog-to-digital converters (ADC).
This document describes how to use the evaluation board of the Isolated Sigma-Delta Converter, how to supply powers and
signals, and how to read and filter properly the converted data.
Isolated Sigma-delta modulator, TTL input and output levels
Isolated Sigma-delta modulator, LVDS input and output levels
Figure 1.
EVALST-ISOSD61L board
UM2815 - Rev 3 - March 2021
For further information contact your local STMicroelectronics sales office.
Getting started with the EVALST-ISOSD61T/L board
Table 1.
Applicable products
Type
Reference products
ISOSD61
ISOSD61L
Figure 2.
EVALST-ISOSD61T board
UM2815
User manual
www.st.com
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Table of Contents
Related Manuals for ST EVALST-ISOSD61L
Summary of Contents for ST EVALST-ISOSD61L
- Page 1 Getting started with the EVALST-ISOSD61T/L board Introduction The EVALST-ISOSD61L/61T is a full featured evaluation board designed to allow the user to evaluate all the features of the ISOSD61 and ISOSD61L isolated analog-to-digital converters (ADC). This document describes how to use the evaluation board of the Isolated Sigma-Delta Converter, how to supply powers and signals, and how to read and filter properly the converted data.
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Page 2: Getting Started
UM2815 Getting started Getting started System requirements To test the board, the necessary hardware is: • An isolated power supply with 5 V, 100 mA capability • A power supply with 3.3 V to 5 V, 50 mA capability • A clock generator capable of producing a square wave with frequency from 5 MHz to 25 MHz, TTL-level (0 –... - Page 3 UM2815 Sigma-Delta data processing function [output, output_dec]=sinc3_generic(in) %in is 1xsamples %output is 1xsamples %output_dec is 1x(samples/dec_fact) nbits = 25; accbits = 46; %minimum accumulator size dutbits = 16; stages = 3; dec_fact = 256; dim = size(in); samples = dim(2); feed_state = zeros(1,stages);...
- Page 4 UM2815 Sigma-Delta data processing si = stages; while(si > 1) feed_state(si) = feed_state(si) + feed_state(si-1); si--; feed_state(1) = feed_state(1) + in(k)* 2^(-(nbits-1)); UM2815 - Rev 3 page 4/9...
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Page 5: Revision History
UM2815 Revision history Table 2. Document revision history Date Version Changes 11-Jan-2021 Initial release. 15-Jan-2021 Title updated. 05-Mar-2021 Updated title of Figure UM2815 - Rev 3 page 5/9... -
Page 6: Table Of Contents
UM2815 Contents Contents Getting started ..............2 System requirements . -
Page 7: List Of Tables
UM2815 List of tables List of tables Table 1. Applicable products ..............1 Table 2. -
Page 8: List Of Figures
EVALST-ISOSD61L board ........ - Page 9 ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’...
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