2016-04-25

16

Version 1.2

SFH 7779

Typical crosstalk free range

V

emitter and detector

0

0

0.2

0.4

0.6

0.2

0.4

0.6

0 counts

mm

Thickness of coverglass

0.8

1

1.2

mm

0.8

1.0

1.2

1 count

> 1 count

OHF05609

Note for crosstalk free range: The displayed crosstalk free ranges for a single or two hole IR transmissive opening are

measured with a clear cover.Depending on the used ink the crosstalk level can differ and needs to be measured.OSRAM

OS provides costumer related application support and measurements - please contact your OSRAM OS marketing or

sales partner, if support is required.

As the measurement results show the typical performance of the sensor OSRAM OS recommends to design inn a

additional safety guard in the distance of the cover bottom surface to the top of the sensor of 200µm.

e.g.: for a 0.5mm thick cover window with two holes and an acceptable crosstalk level of 0 counts the distance of the

cover window bottom surface to the top of the sensor should not exceed 0.6mm (typ. it would be 0.8mm)!