AS7261N datasheet(16/43 Pages) AMSOSRAM

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[v1-02] 2017-Feb-27

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AS7261N − Detailed Descriptions

Low Power Mode

AS7261N can be put into the low power mode by writing 0x02

to the POWER MODE Register (0x73). Write 0x00 to set it back

to normal mode. Wait at least 50μs before doing further

AS7261N operations after powering back to normal.

The sequence to configure AS7261N into low power mode:

• Write 0x00 to Register 0xFA

• Write 0x02 to Register 0x73

• AS7261N is in low power mode

The sequence to configure AS7261N out of low power mode:

• Write 0x00 to Register 0x73

• Wait for at least 50μS

• Write 0x03 to Register 0xFA

• AS7261N is in normal mode

Device Initialization and Pin Assignment

On power up device needs to be initialized as follows before

programming registers to do data conversion and acquisition:

• Device Config 1 register: 0x70 written to 0x8A

• Device Config 2 register: 0x71 written to 0x02

• Device Config 3 register: 0xB0 written to 0x02

• Device Config 4 register: 0x88 written to 0x00

• Device Config 5 register: 0x9A written to 0x02

• Interrupt Operation: The only user defined pin

functionality is whether to use pin 13 as an interrupt signal

at the completion of data conversion. This is done by

programming the INTR_PIN_Config register (0x22) to

0xCA. To disable interrupt function the INTR_PIN_Config

power-on and reset default.

RC Oscillator

An internal on-chip timing generation circuit provides a 16MHz

temperature compensated oscillator for the AS7261N master

clock.

AS7261N 데이터시트(PDF) 16 Page - ams-OSRAM AG