The introduction of new EMC emission
requirements for multimedia equipment
Mr. Kenneth Cheung, Manager
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Definition of MultiMedia Equipment (MME)
Information technology equipment , audio equipment
, video equipment , broadcast receiver equipment ,
entertainment lighting control equipment or
combinations of these
Examples: PC, CD/DVD player, TV/Radio receiver,
Audio amplifier, DMX light controller etc.
Equipment within the scope of EN55013 or EN55022
or EN55103-1 is within the scope of EN55032
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“EN55013, EN55022, EN55103-1” What are they?
EN55013
EMC emissions requirements for sound and television
broadcast receivers and associated equipment
EN55022
EMC emissions requirements for information
technology equipment
EN55103-1
EMC emissions requirements for audio, video, audiovisual and entertainment lighting control equipment for
professional use
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Enforcement of EN 55032 in EU
EN55032:2012
Identical to CISPR32:2012
(Date of Publication, DOP) 2012-12-05
(Date of Withdrawal, DOW) 2017-03-05
EN55032:2012 supersedes EN55013:2013,
EN55022:2010 + AC:2011 and EN551031:2009+A1:2012, which will be withdrawn on 201703-05
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European Standard (EN) Numbering
EN 55032:2012 (year of availability of the EN is
separated from the number by a colon)
The first two numerals indicate the origin of the standard:
- 40000 to 44999 cover domains of common activities in the IT field
- 45000 to 49999 cover domains of common activities outside the IT field
- 50000 to 59999 cover activities i.e. standardization work undertaken
purely at European level
- 60000 to 69999 refer to the implementation of IEC documents with or
without changes
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International Special Committee on Radio
Interference (CISPR)
A special committee under International Electrotechnical Commission
(IEC)
CISPR's principal task is at the higher end of the frequency range, from
9 kHz upwards, preparing standards that offer protection of radio
reception from interference sources such as electrical appliances of all
types, the electricity supply system, industrial scientific and
electromedical RF, broadcasting receivers (sound and TV), IT equipment
(ITE) and, increasingly, MultiMedia Equipment (MME)
CISPR Generic EMC Standards: IEC 61000-6-1, 61000-6-2, 61000-6-3,
61000-6-4
CISPR Product EMC Standards: CISPR 11 / 12 / 13 / 14 / 15 / 20 / 22 /
24 / 25 / 32 / 35
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Enforcement of CISPR 32 / EN55032 in Worldwide
Source: VCCI (2013-June-25)
Australia
Hong Kong
European Union Korea
New Zealand
Source: VCCI (2015-July-10)
Australia
Hong Kong
Singapore
Brazil
Japan
South Africa
Canada
Korea
Taiwan
China
New Zealand
European Union Saudi Arabia
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Enforcement of EMC requirements in HK
CAP 106B
Telecommunications (Control of Interference) Regulations
Propulsion System Installed in Certain Boat and Vehicle
(CISPR12 / EN55012 / GB14023)
Information Technology Equipment
(CISPR22 / EN55022 / GB9254 / 47 CFR Part 15)
Sound and Television Broadcast Receivers and Associated Equipment
(CISPR13 / EN55013 / GB13837 / 47 CFR Part 15)
Electrical Lighting and Similar Equipment
(CISPR15 / EN55015 / GB17743)
Household Appliances, Electric Tools and Similar Apparatus
(CISPR14-1 / EN55014-1 / GB 4343.1)
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Classification of MME
Class B
MME is intended primarily for use in the residential
environment and shall meet the Class B limits
Class A
All other MME which satisfies the class A limits. Warning in
the instructions for use is a must, to inform the user of the
risk of operating this equipment in a residential
environment:
Warning: This equipment is compliant with Class A of CISPR 32. In a
residential environment this equipment may cause radio interference.
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Port Concept
Port - physical interface through which electromagnetic
energy enters or leaves the equipment under test (EUT)
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Basic Decomposition of EMC Coupling Problem
Identify not only the Receptor but also the source and
the path of the disturbance between them.
Source from
EUT (Emitter)
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Transfer path
(Coupling)
Receptor
(Receiver)
Measurements
The procedures to be used for measurement of emission
levels depend upon several elements:
type of EUT
type of port
types of cables used
frequency range
mode of operation
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Measurement Arrangements of EUT
Measure the emissions from the EUT in a manner that is
consistent with its typical arrangement and use
Intended operational
arrangement(s) of MME
Measurement
arrangement
Table-top only
Table-top
Floor-standing only
Floor-standing
Can be floor-standing or table-top
Table-top
Rack mounted
In a rack or table-top
Other, for example wall
mounted, ceiling mounted,
handheld, body worn
Table-top
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Remarks
With normal orientation
If the equipment is designed
to be mounted on a ceiling,
the downward-facing portion
of the EUT may be oriented
facing upward.
Coupling Device for Conducted Emission
AAN (Asymmetric Artificial Network)
AMN (Artificial Mains Network)
Current probe
CVP (Capacitive Voltage Probe)
Matching and combining networks for voltage
measurement into 75 Ω
Matching network for voltage measurement into 75 Ω
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Coupling Device for Conducted Emission
AMN (Artificial Mains Network)
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Measurement Configurations of EUT
Example measurement arrangement for table-top EUT
(conducted emission measurement – alternative 1)
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Measurement Configurations of EUT
Example measurement arrangement for floor standing
EUT (conducted emission measurement)
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Requirements for Conducted Emission
AC mains power port
Measurement
Frequency
Class A limits Class B limits
range
Coupling Detector type/
(dBµV)
(dBµV)
(MHz)
device
bandwidth
0.15 – 0.5
79
66 – 56
Quasi Peak /
0.5 – 5
AMN
73
56
9 kHz
0.5 – 30
73
60
0.15 – 0.5
66
56 – 46
0.5 – 5
AMN Average / 9 kHz
60
46
0.5 – 30
60
50
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Requirements for
Asymmetric Mode Conducted Emission
Wires network port
Optical fibre port with metallic shield or tension members
Antenna port
Frequency
range
(MHz)
0.15 – 0.5
0.5 – 30
0.15 – 0.5
0.5 – 30
0.15 – 0.5
0.5 – 30
0.15 – 0.5
0.5 – 30
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Measurement
Class A
voltage
Detector type/
limits
Coupling device
bandwidth
(dBµV)
Quasi Peak / 97 – 87
AAN
9 kHz
87
84 – 74
Average /
AAN
9 kHz
74
CVP
Quasi Peak / 97 – 87
and current probe
9 kHz
87
84 – 74
CVP
Average /
and current probe
9 kHz
74
Class A
current
limits
(dBµA)
N/A
53 – 43
43
40 – 30
30
Class B
voltage
limits
(dBµV)
84 – 74
74
74 – 64
64
84 – 74
74
74 – 64
64
Class B
current
limits
(dBµA)
N/A
40 – 30
30
30 – 20
20
Requirements for
Conducted Differential Voltage Emissions
TV broadcast receiver tuner port with connector
RF modulator output port
FM broadcast receiver tuner port with connector
Frequency
range
(MHz)
30 – 950
950 – 2 150
950 – 2 150
30 – 300
300 – 1 000
30 – 300
300 – 1 000
30 – 950
950 – 2 150
a)
b)
c)
d)
e)
Detector type / bandwidth
Other
For frequencies ≤1 GHz
Quasi Peak / 120 kHz
For frequencies ≥1 GHz
Peak / 1 MHz
46
46
46
46
46
46
46
46
46
Class B limits
(dBµV) 75Ω
Applicability
Local
Local
Oscillator
Oscillator
Fundamental Harmonics
46
46
a)
54
54
54
54
b)
50
54
c)
52
59
66
d)
52
76
46
e)
N/A
54
TV receivers, video recorders, PC TV tuner cards, digital audio receivers
Tuner units (not the LNB) for satellite signal reception.
Frequency modulation audio receivers and PC tuner cards.
Frequency modulation car radios
EUTs with RF modulator output ports designed to connect to TV broadcast receiver tuner ports
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Measurement Facility for Radiated Emission
SAC (Semi Anechoic Chamber)
OATS (Open Area Test Site)
FAR (Fully Anechoic Room)
FSOATS (Free Space Open Area Test Site)
An FSOATS may be a SAC/OATS with RF absorber on the reference
ground plane or a FAR
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Measurement Facility for Radiated Emission
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OATS (Open Area Test Site)
SAC (Semi Anechoic Chamber)
Applicability for Radiated Emission
Highest internal frequency Highest measured frequency
(Fx)
Fx ≤ 108 MHz
1 GHz
108 MHz < Fx ≤ 500 MHz
2 GHz
500 MHz < Fx ≤ 1 GHz
5 GHz
Fx > 1 GHz
5 × Fx up to a maximum of 6 GHz
where Fx is unknown, radiated emission measurements shall be
performed up to 6 GHz
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Measurement Configurations of EUT
Example measurement arrangement for table-top EUT
(radiated emission measurement)
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Measurement Configurations of EUT
Example measurement arrangement for floor standing
EUT (radiated emission measurement)
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Requirements for Radiated Emission
Enclosure port (≤ 1GHz)
Measurement
Class A limits Class B limits
(dBµV/m)
(dBµV/m)
Frequency
range
Detector
Distance
(MHz)
type/
OATS/SAC
(m)
bandwidth
30 – 230
40
10
Quasi
230 – 1 000
47
Peak /
30 – 230
50
120 kHz
3
230 – 1 000
57
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OATS/SAC
30
37
40
47
Requirements for Radiated Emission
Enclosure port (>1GHz)
Frequency
range
(MHz)
1 000 – 3 000
3 000 – 6 000
1 000 – 3 000
3 000 – 6 000
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Measurement
Distance
(m)
3
Detector
type/
bandwidth
Average /
1 MHz
Peak /
1 MHz
Class A limits Class B limits
(dBµV/m)
(dBµV/m)
FSOATS
FSOATS
56
60
76
80
50
54
70
74
Requirements for Radiated Emission
Enclosure port (≤ 1GHz), only for FM receivers
Measurement
Class B limits (dBµV/m)
Frequency
Detector Fundamental Harmonics
range
Distance
type/
(MHz)
(m)
bandwidth OATS/SAC OATS/SAC
30 – 230
42
230 – 300
10
50
42
Quasi
300 – 1000
46
Peak /
30 – 230
52
120 kHz
230 – 300
3
60
52
300 – 1000
56
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What’s Out in CISPR32 / EN55032
Deleted measurement of disturbance power ( 30MHz –
300MHz according to CISPR13 / EN55013)
Deleted measurement of radiated magnetic fields (50Hz
- Hz to 50 kHz according to EN55103-1)
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What’s New in CISPR32: 2015 / EN55032: 201x
Added outdoor units of home satellite receivers (LNB),
highest measured frequency shall be 18 GHz
Added Fully Anechoic Room (FAR) for radiated emission
<1 GHz
Proposed other test methods and associated limits for
radiated emissions for GTEM (Gigahertz Transverse
ElectroMagnetic) Cell and RVC (ReVerberation Chamber)
in informative annex
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THANK YOU !