TSL2520 datasheet(20/69 Pages) OSRAM

номер детали	TSL2520

подробное описание детали	Highly Sensitive Ambient Light Sensor

PDF	69 Pages

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производитель	OSRAM [OSRAM GmbH]

домашняя страница	http://www.osram.com

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Datasheet, Public

Page 19

[v3-00] 2022-Dec-20

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TSL2520 − Register Overview

MEAS_MODE1 Register

Figure 21:

MEAS_MODE1

Note(s):

1. Return to the Register Map (0x82).

SAMPLE_TIME0 Register

Figure 22:

SAMPLE_TIME0

Note(s):

1. Return to the Register Map (0x83).

SAMPLE_TIME1 Register

Figure 23:

SAMPLE_TIME1

Addr: 0x82

MEAS_MODE1

Bit

Field

Reset

Type

Bit Description

7:5

Reserved

4:0

ALS_MSB_POSITION

0x0C

R/W

Internally the result can be 26 bits wide = 11-bit

samples + 11-bit sampling time + 4-bit residuals

and is stored in a 32-bit register. ALS_MSB_

POSITION defines the MSB in this 32-bit register.

Addr: 0x83

SAMPLE_TIME0

Bit

Field

Reset

Type

Bit Description

7:0

SAMPLE_

TIME[7:0]

0xB3

R/W

ALS measurement time step. Sets the time in steps of 1.388889μs

modulator clock. The modulator clock can be divided with MOD_

DIVIDER_SELECT in register CFG7. Please observe that SAMPLE_

TIME needs to be set in register 0x83 and 0x84 (11-bit wide). It

counts from 0-2047 (2048 counts).

SAMPLE_TIME =

(1/SamplingFreq/1.388889μs)-1

Default: 179+1 = 1/4000Hz / 1.388889μs

(180 counts as counted 0-179)

ALSIntegrationTimeStep = (SAMPLE_TIME+1) x 1.388889μs

Default: 250μs = (179+1) x 1.388889μs

Addr: 0x84

SAMPLE_TIME1

Bit

Field

Reset

Type

Bit Description

7:3

Reserved

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