IEC 61938-2018 pdf free download
IEC 61938-2018 pdf free download.Multimedia systems – Guide to the recommended characteristics of analogue interfaces to achieve interoperability.
This document gives guidance on current practice for the characteristics of multimedia analogue interfaces to achieve interoperability between equipment from different
manufacturers. It is not a performance standard.
Recommendations for interfaces for equipment used in vehicles, and for analogue video interfaces for broadcast and similar equipment, are not given.
Refer to IEC 60958 for the interconnection of digital signals.
Figure 1 shows in a diagram the possible interfaces of the audio and video sources and destinations.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60038, IEC standard voltages
IEC 60094-2. Magnetic tape recording and reproducing systems — Part 2: Calibration tapes
IEC 60268-1. Sound system equipment — Part 1: General
IEC 60268-3, Sound system equipment — Part 3: Amplifiers
IEC 60268-5. Sound system equipment — Part 5: Loudspeakers
IEC 60268-7:201 0, Sound system equipment — Part 7: Headphones and earphones
IEC 60268-11:1987. Sound system equipment — Part 11: Application of connectors for the interconnection of sound system components
IEC 60268-11:1987/AMD1:1989, Sound system equipment — Part 11: Application of connectors for the interconnection of sound system components
IEC 60268-11:1987/AMD2:1991, Sound system equipment — Part 11: Application of connectors for the interconnection of sound system components
lEG 60268-12, Sound system equipment — Part 12: Application of connectors for broadcast and similar use
IEC 60603-11:1992, Connectors for frequencies below 3 MHz for use with printed boards — Part 11: Detail specification for concentric connectors (dimensions for free connectors and
fixed connectors)
IEC 60958:2016, Digital audio interface — ALL PARTS
ITU-R BT.1700:2005, Characteristics of composite video signals for conventional analogue television systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
●IEC Electropedia: available at http://www.electropedia.org/
●ISO Online browsing platform: available at http://www.iso.org/obp
4 General conditions
AlI voltages are RMS voltages, unless otherwise indicated.
Impedances of audio circuits are valid in the frequency range of 20 Hz to 20 kHz,unless otherwise indicated.
Electrical tolerance is t5 %, unless otherwise indicated.
Tables containing tolerances indicate that the equipment should operate over the entire range of possible values, but may not meet all of its specifications at the given limits.
5 Power supply
5.1 Alternating current (AC) power supply voltages and frequencies For AC power supply voltages and frequencies, refer to IEC 60038.
For special applications, for example ships and aircraft, other voltages and/or frequencies and the permissible tolerances are subject to agreement between manufacturers and users.IEC 61938 pdf free download.
