Data Sheet

AS7265x

Design Considerations

ams Application Note Page 3

[v1-5] 2018-May-23 Document Feedback

1 General Description

This Application Note briefly describes system level design considerations with ams AS7265x

Multispectral Chipset solution.

2 AS7265x Multispectral Chipset

AS7265x Multispectral Chipset consists of AS72651, AS72652, and AS72653 devices and each

device has 6 optical filters so that AS7265x Multispectral Chipset have total 18 channels for spectral

identification from 400nm to 1000nm with FWHM of 20nm.

AS72651 is the main device with the smart interface to a microcontroller. The microcontroller gets the

sensors data including AS72652 and AS72653 through AS72651 AT commands or I

C registers.

AS72651 requires a flash memory to work with and the flash memory contains AS7265x Multispectral

Chipset firmware

Each AS72651, AS72652, or AS72653 is packaged in 20-pin LGA package.

Figure 1. AS7265x Multispectral Chipset Optical Filters

Device Channel Filter Type Center λ (nm) FWHM (nm)

AS72653 A Gaussian/BP 410 20

AS72653 B Gaussian/BP 435 20

AS72653 C Gaussian/BP 460 20

AS72653 D Gaussian/BP 485 20

AS72653 E Gaussian/BP 510 20

AS72653 F Gaussian/BP 535 20

AS72652 G Gaussian/BP 560 20

AS72652 H Gaussian/BP 585 20

AS72651 R Gaussian/BP 610 20

AS72652 I Gaussian/BP 645 20

AS72651 S Gaussian/BP 680 20

AS72652 J Gaussian/BP 705 20

AS72651 T Gaussian/BP 730 20

AS72651 U Gaussian/BP 760 20

AS72651 V Gaussian/BP 810 20

AS72651 W Gaussian/BP 860 20

AS72652 K Gaussian/BP 900 20

AS72652 L Gaussian/BP 940 20

See application note „AS72xx External Flash program and update“