TMG3992 datasheet(55/96 Pages) OSRAM

Part #	TMG3992

Description	Gesture, Color, ALS, and Proximity Sensor Module with mobeam™ Barcode Emulation

PDF	96 Pages

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Manufacturer	OSRAM [OSRAM GmbH]

Direct Link	http://www.osram.com

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Page 54

ams Datasheet

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[v1-06] 2018-Feb-27

TMG3992 − Register Description

Proximity Pulse Count and Length Register

(PPULSE 0x8E)

The Proximity Pulse Count Register sets Pulse Width modified

current during a Proximity Pulse. The proximity pulse count

pin. The Proximity Length register bits set the amount of time

the LDR pin is sinking current during a proximity pulse.

Figure 53:

Proximity Pulse Count and Length Register

Note(s):

1. The time described by PPLEN is the actual signal integration time. The LED will be activated slightly longer (typically 1.36 μs) than

the integration time.

765

432

PPLEN

PPULSE

Field

Bits

Description

PPLEN

7:6

Proximity Pulse Length. Sets the LED-ON pulse width during a Proximity

LDR Pulse.

FIELD VALUE

LED ON

4μs

8μs

16μs

32μs

PPULSE

5:0

Proximity Pulse Count. Specifies the number of Proximity pulses to be

generated on LDR. Number of pulses is set by PPULSE value plus 1.

TMG3992 Datasheet(PDF) 55 Page - OSRAM GmbH