IEC 62779-4:2020

IEC 62779-4 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Semiconductor devices – Semiconductor interface for human body
communication –
Part 4: Capsule endoscope
Dispositifs à semiconducteurs – Interface à semiconducteurs
pour les communications via le corps humain –
Partie 4: Capsule endoscopique

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IEC 62779-4 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Semiconductor devices – Semiconductor interface for human body

communication –
Part 4: Capsule endoscope
Dispositifs à semiconducteurs – Interface à semiconducteurs

pour les communications via le corps humain –

Partie 4: Capsule endoscopique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.080.01 ISBN 978-2-8322-7804-8

– 2 – IEC 62779-4:2020 © IEC 2020

CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and letter symbols . 6
3.1 General terms . 6
3.2 Rating and characteristics . 8
3.2.1 Capsule endoscope characteristics . 8
3.2.2 Receiving device characteristics . 8
3.2.3 Transfer characteristics . 8
3.3 Letter symbols . 10
4 General requirements . 10
4.1 General specifications . 10
4.1.1 General . 10
4.1.2 Function . 10
4.1.3 Implementation types . 12
4.2 Constructional specifications . 12
4.3 Electrical specifications . 12
4.3.1 General . 12
4.3.2 Power supply characteristics . 12
4.3.3 Power supply type . 13
4.3.4 Dynamic characteristics of driver in capsule endoscope. 13
4.3.5 Dynamic characteristics of analog front end . 13
4.3.6 CDR circuit interface . 14
4.3.7 Modem interface . 14
4.3.8 Limiting values. 14
4.3.9 Temperatures . 15
4.4 Operating specifications . 15
4.4.1 Main application . 15
4.4.2 Compatibility . 15
Annex A (informative) General description of capsule endoscope using human body
communication . 16

Figure 1 – Definition of cut-off frequency and bandwidth . 9
Figure 2 – Typical example of semiconductor interface structure for capsule endoscope

using galvanic coupling human body communication. 11
Figure 3 – Typical example of data recovery circuit (DRC) . 12
Figure A.1 – Capsule endoscope application . 17

Table 1 – Letter symbols . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SEMICONDUCTOR DEVICES –
SEMICONDUCTOR INTERFACE FOR HUMAN BODY COMMUNICATION –

Part 4: Capsule endoscope
FOREWORD
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International Standard IEC 62779-4 has been prepared by IEC technical committee 47:
Semiconductor devices.
The text of this International Standard is based on the following documents:
FDIS Report on voting
47/2600/FDIS 47/2611/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

– 4 – IEC 62779-4:2020 © IEC 2020
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62779 series, published under the ge
...