Silicon Laboratories Si80xx-EVB User Manual

Si80xx-EVB

Si80XX THREE TO SIX CHANNEL DIGITAL ISOLATOR
E

VALUATION BOARD USER’S GUIDE

1. Introduction

The Si80xx evaluation kit allows designers to evaluate Silicon Lab's family of low-power digital isolators. These are
CMOS devices offering substantial data rate, propagation delay, power, size, reliability, and external BOM
advantages over legacy isolation technologies. The operating parameters of these products remain stable across
wide temperature ranges and throughout device service life for ease of design and highly uniform performance. All
device versions have Schmitt trigger inputs for high noise immunity and only require VDD bypass capacitors. Data
rates up to 10 Mbps are supported, and all devices achieve propagation delays of less than 65 ns. Enable inputs
provide a single point control for enabling and disabling output drive. Ordering options include a choice of 1kV
isolation ratings. For more information, refer to the Si80xx family data sheets. This evaluation kit consists of an
evaluation board featuring the QSOP-16 package. Note that the other packages are not available at this time.

1.1. Kit Contents

The Si80xx Evaluation Kit contains the following items:

Si80xx based evaluation board as shown in Figures 1.
Si80xx Digital isolator (installed on the evaluation board)

Si8065 (QSOP-16)

RMS

Figure 1. Si80xx Evaluation Board Overview

Rev. 0.1 3/14 Copyright © 2014 by Silicon Laboratories Si80xx-EVB

Si80xx-EVB

2. Required Equipment

The following items are required to demonstrate the evaluation board:

1 digital multimeter
2 multimeter test leads (red and black)
1 oscilloscope (Tektronix TDS 2024B or equivalent)
1 BNC splitter
4 coaxial cables
2 dc power supply (HP6024A, 30 V dc, 0–100 mA or equivalent)
2 BNC to clip converters (red and black)
4 Banana to clip wires (2 red and 2 black)
1 function generator (Agilent 33220A, 20 MHz or equivalent)
Si80xx Evaluation Board (board under test)
Si80xx Digital Isolator Input Evaluation Board User's Guide (this document)

2 Rev. 0.1

Si80xx-EVB

SignalInput

500kHz,5Vpk

SquareWave

SignalGenerator

5V

Supply

VDD1
A1
GND1

VDD2

B1

GND2

Si8065

EVB

5V

Supply

Oscilloscope

Ch1
Ch2

3. Hardware Overview and Demo

Figure 2 illustrates the connection diagram used to demonstrate the Si80xx-EVB. This demo transmits a 500 kHz
(5 V peak, 50 percent duty cycle) square wave through the isolator to its output. In this example, VDD1 and VDD2
are powered by 5 V supplies. Figure 3 shows a scope shot of CH1 (input) and CH2 (output). Note that if a user
wants to evaluate a digital isolator other than the ones pre-populated, this can be accomplished by removing the
installed device and replacing it with the desired footprint-compatible isolator device.

Figure 2. Summary Diagram and Demo Setup

Figure 3. Oscilloscope Display of Input and Output

Rev. 0.1 3