AS7264N datasheet(13/42 Pages) AMSOSRAM

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[v1-00] 2017-Oct-05

AS7264N − Detailed Descriptions

Data Conversion

AS7264N spectral conversion is implemented via two

photodiode banks. The first bank provides data from the X, Y, Z

and NIR (near-IR) photodiodes. The second bank provides data

from the same X and Y photodiodes as well as blue 440nm and

blue 490nm photodiodes.

The spectral conversion process is controlled with two BANK

Mode settings. Bank Mode 0 uses I²C registers for X, Y,B440 and

B490 data. Bank Mode 1 uses I²C registers for X, Y, Z and NIR

data. Sensor data is available in four I²C registers

(NDATAL/NDATAH, XDATAL/XDATAH, YDATAL/YDATAH and

ZDATAL/ZDATAH) as shown in the figures below.

Figure 13:

Bank Modes

Figure 14:

AS7264N Sensor Data I²C Registers

I²C Register

Bank Mode 0

Bank Mode 1

NDATAL/NDATAH

B490

NIR

XDATAL/XDATAH

YDATAL/YDATAH

ZDATAL/ZDATAH

B440

B490

NIR

Photo Diode Array

BANK Mode 0

One Conversion

X, Y, B440

and B490

Integration Time

X, Y, Z and NIR

One Conversion

BANK Mode 1

Integration Time

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