Data Sheet

Page 22 ams Datasheet
Document Feedback [v1-04] 2018-Jul-09
AS7265x − Detailed Description
Reset
Pulling down the RESN pin for longer than 100ms resets the
AS72651 which proceed to reset the AS72562 and the same
RESN signal shown below can be used directly to reset the
AS72653.
Figure 23:
Reset Circuit
AS7265x LED_IND Controls
There are LED_IND pins on all AS7265x devices. An LED con-
nected to LED_IND can be used as a general power indicator
and will automatically be used to indicate a Flash firmware up-
date is occurring.
The LED_IND can then be setup as needed. Each AS7265x LED_
IND source can be turned on/off via AT commands or I²C register
control, and LED_IND sink current is programmable to 1mA,
2mA, 4mA or 8mA. This LED_IND control can also be used in
applications just like the LED_DRV control (described below), if
the lower current sink of the LED_IND control is appropriate.
Electronic Shutter with AS7265x LED_DRV
Driver Control
There are LED_DRV pins on all AS7265x devices. The LED_DRV
pin can be used to control external LED sources as needed for
sensor applications. LED_DRV can sink a programmable current
of 12.5mA, 25mA, 50mA or 100mA. The control can be turned
on/off via I²C registers or AT commands, and as such it provides
the AS7265x device with an electronic shutter.
Interrupt Operation
Interrupt operation is only needed for AS72651 as it transpar-
ently controls data collection from the AS72652 (if used) or
AS72653 (if used).
Reset
AS72651
Spectral_ID
Engine
RESN
Push > 100ms
VDD