AS7261 datasheet(16/48 Pages) OSRAM

16 / 48 page

ams Datasheet

Page 15

[v1-00] 2016-Dec-30

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AS7261 − Detailed Descriptions

Temperature Sensor

The internal temperature sensor is constantly measuring the

on-chip temperature and enables temperature compensation

procedures. It can be read via I²C or AT Command.

Reset

Pulling down the RESN pin for longer than 100ms resets the

AS7261.

Figure 18:

Reset Circuit

Indicator LED for Flash Memory Programming

Progress

The LED, connected to pin LED_IND, can be used to indicate

Flash memory programming progress of the device. While

programming the AS7261 via the external SD card the indicator

LED automatically starts flashing. When programming is

completed the indicator LED is automatically switched off. The

Flash Memory Programming is initiated by the user as needed,

but once started the LED flashing is not under user control.

Electronic Shutter with LED_IND or LED_DRV

Driver Control

Under user control there are two LED driver outputs that can

be used to control LEDs on each driver pin. This allows 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 for 1mA, 2mA, 4mA or 8mA and

LED_DRV for 12.5mA, 25mA, 50mA or 100mA. After

programming for current the sources can be turned off and on

via I²C registers or AT commands to provide the AS7261 with an

electronic shutter capability.

Reset

AS7261

Cognitive

Lighting

Engine

RESN

Push > 100ms

AS7261 Datasheet(PDF) 16 Page - OSRAM GmbH