TMD27723 datasheet(38/59 Pages) AMSCO

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Page 38

ams Datasheet, Confidential

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[v1-20] 2014-Jul-21

TMD2772/ TMD2772WA − Register Description

Control Register (0x0F)

The Control Register provides eight bits of miscellaneous

control to the analog block. These bits typically control

functions such as gain settings and/or diode selection.

Figure 43:

Control Register

PDRIVE

PDIODE

PGAIN

AGAIN

Field

Bits

Description (Reset value = 0x00)

PDRIVE (1)

7:6

Proximity LED Drive Strength.

Field Value

LED Strength – PDL=0

LED Strength – PDL=1

100 %

11.1 %

50 %

5.6 %

25 %

2.8 %

12.5 %

1.4 %

PDIODE

5:4

Proximity Diode Selector.

Field Value

Diode Selection

Proximity uses neither diode

Proximity uses the CH0 diode

Proximity uses the CH1 diode

Reserved — Do not write

PGAIN

3:2

Proximity Gain.

Field Value

Proximity Gain Value

1x gain

2x gain

4x gain

8x gain

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