TMD2636 datasheet(27/48 Pages) OSRAM

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[v2-00] 2023-Jan-04

TMD2636 − Register Description

POFFSETH Register (0xC1)

Figure 38:

POFFSETH Register

Typically, optical and/or electrical crosstalk negatively

influence proximity operation and results. The

POFFSETL/POFFSETH registers provide a mechanism to remove

system crosstalk from the proximity data. POFFSETL and

POFFSETH contains the magnitude and sign of a value which

adjusts PDATA is generated in the AFE. An offset value in the

range of ± 255 is possible.

CALIB Register (0xD7)

Figure 39:

CALIB Register

Addr: 0xC1

POFFSETH

Bit

Bit Name

Default

Access

Bit Description

7:1

Reserved

0000000

Reserved. Must be set to default value.

POFFSETH

This register contains the sign portion of proximity offset

adjust value.

Addr: 0xD7

CALIB

Bit

Bit Name

Default

Access

Bit Description

7CALAVG

Enables proximity hardware averaging as selected with

PROX_AVG during calibration.

0 = No hardware averaging

1 = Hardware averaging enabled

Reserved

Reserved. Must be set to default value.

ELECTRICAL_

CALIBRATION

0RW

Selects proximity calibration type.

0 = Electrical and optical crosstalk.

1 = Electrical crosstalk only.

4CALPRATE

Enables PRATE during calibration. Useful when averaging

is enabled.

0 = PRATE ignored

1 = PRATE applied between averaging samples

3:1

Reserved

000

Reserved. Must be set to default value.

START_

OFFSET_CAL

Set to 1 to start a calibration sequence.

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