hsdl-3600 Avago Technologies, hsdl-3600 Datasheet - Page 17

• Manufacturer Part Number: hsdl-3600
• Description: Irda Compliant 4 Mb/s 3 V Infrared Transceiver - Agilent Hewlett-packard
• Manufacturer: Avago Technologies

Appendix A: Test Method
A1. Background Light and
Electromagnetic Field
There are four ambient
interference conditions in which
the receiver is to operate
correctly. The conditions are to
be applied separately:
1. Electromagnetic field:
3 V/m maximum (please refer to
IEC 801-3, severity level 3 for
details).
2. Sunlight:
10 kilolux maximum at the
optical port. This is simulated
with an IR source having a peak
wavelength within the range of
850 nm to 900 nm and a spectral
width of less than 50 nm biased
to provide 490 W/cm
modulation) at the optical port.
The light source faces the optical
port.
This simulates sunlight within the
IrDA spectral range. The effect of
longer wavelength radiation is
covered by the incandescent
condition.
All Agilent IR transceivers operating under the recommended drive conditions are classified as
CENELEC EN60825-1 Accessible Emission Limit (AEL) Class 1. This standard is in effect in Europe
as of January 1, 1997. AEL Class 1 LED devices are considered eye safe. Please see Application Note
1094 for more information.
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(with no
3. Incandescent Lighting:
1000 lux maximum. This is
produced with general service,
tungsten-filament, gas-filled,
inside frosted lamps in the 60
Watt to 100 Watt range to
generate 1000 lux over the
horizontal surface on which the
equipment under test rests. The
light sources are above the test
area. The source is expected to
have a filament temperature in
the 2700 to 3050 Kelvin range
and a spectral peak in the 850 to
1050 nm range.
4. Fluorescent Lighting:
1000 lux maximum. This is
simulated with an IR source
having a peak wavelength within
the range of 850 nm to 900 nm
and a spectral width of less than
50 nm biased and modulated to
provide an optical square wave
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signal (0 W/cm
0.3 W/cm
10% to 90% rise and fall times
less than or equal to 100 ns) over
the horizontal surface on which
the equipment under test rests.
The light sources are above the
test area. The frequency of the
optical signal is swept over the
frequency range from 20 kHz to
200 kHz.
Due to the variety of fluorescent
lamps and the range of IR
emissions, this condition is not
expected to cover all
circumstances. It will provide a
common floor for IrDA operation.
2
peak amplitude with
2
minimum and