Data Sheet

Page 16 ams Datasheet
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AS7263 − Detailed Description
Temperature Sensor
The Temperature Sensor is constantly measuring the on-chip
temperature and enables temperature compensation proce-
dures.
Reset
Pulling down the RESN pin for longer than 100ms resets the
AS7263.
Figure 17:
Reset Circuit
Indicator LED
The LED, connected to pin LED_IND, can be used to indicate
programming progress of the device.
While programming the AS7263 via the external SD card the
indicator LED starts flashing (500ms pulses). When program-
ming is completed the indicator LED is switched off. The LED
(LED0) can be turned ON/OFF via AT commands or via I²C reg-
ister control. The LED sink current is programmable from 1mA,
2mA, 4mA and 8mA.
Electronic Shutter with LED_DRV Driver Control
There are two LED driver outputs that can be used to control
up to 2 LEDs. This will allow different wavelength light sources
to be used in the same system. The LED output sink currents are
programmable and can drive external LED sources: LED_IND
from 1mA, 2mA, 4mA and 8mA and LED_DRV from 12.5mA,
25mA, 50mA and 100mA. The sources can be turned off and on
via I²C registers control or AT commands and provides the de-
vice with an electronic shutter.
Reset
AS7263
CLE
RESN
Push > 100ms