TSL2568CS datasheet(26/56 Pages) OSRAM

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ams Datasheet

Page 25

[v1-00] 2016-Apr-12

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TSL2568, TSL2569 − Principles of Operation

Integration time is dependent on the INTEG FIELD VALUE and

the internal clock frequency. Nominal integration times and

respective scaling between integration times scale

proportionally as shown in Figure 31. See note 4 and note 5 for

detailed information regarding how the scale values were

obtained; see Calculating Lux and Simplified Lux Calculation for

further information on how to calculate lux.

Figure 31:

Integration Time

The manual timing control feature is used to manually start and

stop the integration time period. If a particular integration time

period is required that is not listed in Figure 31, then this feature

can be used. For example, the manual timing control can be

used to synchronize the TSL256x device with an external light

source (e.g. LED). A start command to begin integration can be

initiated by writing a 1 to this bit field. Correspondingly, the

integration can be stopped by simply writing a 0 to the same

bit field.

INTEG Field Value

Scale

Nominal Integration Time

0.034

13.7ms

0.252

101ms

402ms

N/A

TSL2568CS Datasheet(PDF) 26 Page - OSRAM GmbH