TCS37717FN Datasheet, PDF (20/48 Pages) List of Unclassifed Manufacturers – The benefits and features of the TCS3771 are listed below

TCS3771 − Principles of Operation
The combination of LED power and number of pulses can be
used to control the distance at which the sensor can detect
proximity. Figure 24 shows an example of the distances covered
with settings such that each curve covers 2× the distance.
Counts up to 64 pulses provide a 16× range.
Figure 24:
Proximity ADC Count vs. Relative Distance
Page 20
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Interrupts
The interrupt feature simplifies and improves system efficiency
by eliminating the need to poll the sensor for light intensity or
proximity values outside of a user-defined range. While the
interrupt function is always enabled and it’s status is available
in the status register (0x13), the output of the interrupt state
can be enabled using the proximity interrupt enable (PIEN) or
RGBC interrupt enable (AIEN) fields in the Enable Register
(0x00).
Four 16-bit interrupt threshold registers allow the user to set
limits below and above a desired light level and proximity
range. An interrupt can be generated when the RGBC Clear data
(CDATA) falls outside of the desired light level range, as
determined by the values in the RGBC interrupt low threshold
registers (AILTx) and RGBC interrupt high threshold registers
(AIHTx). Likewise, an out-of-range proximity interrupt can be
generated when the proximity data (PDATA) falls below the
ams Datasheet, Confidential
[v1-20] 2014-Aug-06