TMG39923 datasheet(49/96 Pages) OSRAM

tên linh kiện	TMG39923

Giải thích chi tiết về linh kiện	Gesture, Color, ALS, and Proximity Sensor Module with mobeam™ Barcode Emulation

PDF	96 Pages

Scroll/Zoom	100%

nhà sản xuất	OSRAM [OSRAM GmbH]

Trang chủ	http://www.osram.com

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Page 48

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[v1-06] 2018-Feb-27

TMG3992 − Register Description

ADC Integration Time Register (ATIME 0x81)

The ATIME Register controls the internal integration time of

ALS/Color analog to digital converters. Upon power up, the ADC

integration time register is set to 0xFF.

The maximum count (or saturation) value can be calculated

based upon the integration time and the size of the count reg-

ister (i.e. 16 bits). For ALS/Color, the maximum count will be the

lesser of either:

• 65535 (based on the 16 bit register size) or

• The result of equation: CountMAX = 1024 x CYCLES +1

Figure 47:

ADC Integration Time Register

Note(s):

1. The ATIME register is only applicable to ALS/Color engine (16-bit data). The integration time for the 8-bit Proximity/Gesture engine,

is a factor of four less than the nominal time (2.78ms), resulting in a fixed time of 0.696ms.

765

432

ATIME

Field

Bits

Description

ATIME

7:0

CYCLES

TIME

Max Count

0xFF

2.78 ms

1025

0xF6

27.8 ms

10241

0xDB

103 ms

37888

….

0xC0

178 ms

65535

0x00

256

712 ms

65535

256

TIME

2.78ms

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