TCS37717FN Datasheet, PDF (17/48 Pages) List of Unclassifed Manufacturers – The benefits and features of the TCS3771 are listed below

TCS3771 − Principles of Operation
Figure 20:
RGBC Operation
RGBC Operation
The RGBC engine contains RGBC gain control (AGAIN) and four
integrating analog-to-digital converters (ADC) for the RGBC
photodiodes. The RGBC integration time (ATIME) impacts both
the resolution and the sensitivity of the RGBC reading.
Integration of all four channels occurs simultaneously and upon
completion of the conversion cycle, the results are transferred
to the color data registers. This data is also referred to as channel
count. The transfers are double-buffered to ensure that invalid
data is not read during the transfer. After the transfer, the device
automatically moves to the next state in accordance with the
configured state machine.
ams Datasheet, Confidential
[v1-20] 2014-Aug-06
The registers for programming the integration and wait times
are a 2’s compliment values. The actual time can be calculated
as follows:
ATIME = 256 - Integration Time / 2.4ms
Inversely, the time can be calculated from the register value as
follows:
Integration Time = 2.4ms × (256 - ATIME)
For example, if a 100-ms integration time is needed, the device
needs to be programmed to:
256 - (100 / 2.4) = 256 - 42 = 214 = 0xD6
Conversely, the programmed value of 0xC0 would correspond
to:
(256 - 0xC0) × 2.4 = 64 × 2.4 = 154ms
Page 17
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