AS7261 datasheet(13/48 Pages) AMSOSRAM

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[v1-00] 2016-Dec-30

AS7261 − Detailed Descriptions

Figure 15:

Internal Block Diagram

XYZ Chromatic White Color Sensor

The XYZ Chromatic White Color sensor is a next-generation

digital color sensor device. Each channel is a designed to meet

the X, Y, Z standard observer filter characteristics compliant

with the CIE 1931 standard or an NIR spectrum.

The sensor contains analog-to-digital converters (16-bit

resolution ADC), which integrate the current from each

channel’s photodiode. Upon completion of the conversion

cycle, the integrated result is transferred to the corresponding

data registers. The transfers are double-buffered to ensure that

the integrity of the data is maintained.

Standard observer interference filters realize the XYZ response,

which enables minimal life-time drift and very high

temperature stability. Filter accuracy will be affected by the

angle of incidence which itself is limited by an integrated

aperture and an internal micro-lens structure. The

aperture-limited field of view is ±20.5° to deliver specified

accuracy.

Detailed Descriptions

AS7261

RC Osc

VDD1

VDD2

GND

16MHz

MISO

SCK

MOSI

CSN_SD

RESN

°C

Cognitive Light

Engine (CLE)

SPI

Master

TX / SDA_S

RX / SCL_S

UART / I

LED_DRV

Multi

Spectral

Sensor

LED_IND

C NIR

I2C_ENB

INT

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