IVM06A300X200X0.4 TDK Corporation, IVM06A300X200X0.4 Datasheet - Page 8

• Manufacturer Part Number: IVM06A300X200X0.4
• Description: EMI/RFI Suppressors & Ferrites 300 X 200 X 0.4 mm
• Manufacturer: TDK Corporation

Specifications of IVM06A300X200X0.4

• Dimensions: 200 mm W x 300 mm L x 0.4 mm H
• Shielding: Shielded
• Product: Absorber Sheets & Tiles
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Example of the LCOS module's countermeasure
against unnecessary radiation
urement and may not coincide with performance in
other situations.
Efforts to develop microdisplays with higher
resolutions and lower costs have been acceler-
ated. Examples of countermeasures against un-
necessary radiation will be shown for large pro-
jection TVs (which are in increasing demand,
chiefly in North America) and the LCOS modules
integrated in projectors which have been further
downsized at reduced cost. These examples
reflect the increased demand for audio and
visual devices for home and business.
The chart below shows results of measurements.
There's also a result for the case where the LCOS
modules are removed in order to measure the
radiation level of the control board. The chart at
the bottom right shows the measurement of un-
necessary radiation with Flexield applied to a
part of the FPC between the LCOS and circuit.
The FPC is placed between two sheets of a
0.5mm-thick IRL03 material cut a few millimeters
wider than the width of the FPC.
Under the initial conditions, before application,
there was a steep noise increase approaching
the regulational value of the FCC class B be-
tween 500 and 1000MHz(exceeded the value
around 600MHz). After it was applied, a reduc-
tion of about 5-10dB was observed in a wide
range of frequencies.
The data shown here are examples of in-house meas-
IRL03
T: 0.5mm
20
Applied on
both sides
x
24mm
TDK CORPORATION
IRL, IRJ, IVM,
IRB, IRE
Circuit board only (LCOS modules are not connected)
Circuit board + LCOS module
Circuit board + LCOS module with Flexield
7
60
50
40
30
20
10
60
50
40
30
20
10
60
50
40
30
20
10
0
0
0
300
300
300
BACK
FCC Class B
FCC Class B
FCC Class B
Horizontal (3m)
Horizontal (3m)
Horizontal (3m)
materials
NEXT
400
400
400
9
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
500
500
500
IRL, IRJ, IVM, IRB, IRE
600
600
600
700
700
700
800 900 1000
800 900 1000
800 900 1000
8