TMD2621 datasheet(37/59 Pages) OSRAM

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[v4-00] 2023-Apr-12

TMD2621 − Register O ver view

CALIB_OFFSET Register (Address 0xD8)

Figure 50:

CALIB_OFFSET Register

For applications with high optical proximity crosstalk (the

emitted IR optical signal appears at the IR sensor), the offset

range can be extended in discrete steps. To determine the best

range extension step for the application, a proximity calibration

cycle is initiated and the resulting proximity offset is captured

in the POFFSET /POFFSET_SIGN registers.

Addr: 0xD8

CALIB_OFFSET

Bit

Bit Name

Default

Access

Bit Description

Reserved

Reserved. Must be set to default value.

EN_AUTO_

ORE_CAL

0RW

Setting this bit to a 1 enables automatic calculation for

PRX_OFFSET_RANGE_EXTENSION during proximity

calibration.

When the bit is 0, the automatic calculation is

disabled, and the PRX_OFFSET_RANGE_EXTENSION

value has to be provided by users.

EN_PRX_

OFFSET_

RANGE_

EXTENSION

0RW

Setting this bit to a 1 enables the proximity offset

range extension functionality. See the PRX_OFFSET_

RANGE_EXTENSION bits. If this bit is set to 0, the offset

range extension is disabled.

4:0

PRX_OFFSET_

RANGE_

EXTENSION

00000

Offset range extension selection.

For PGAIN2 = 2.5x, all 5 bits are used.

For PGAIN2 = 5x, the LSB is ignored.

For PGAIN2 = 10x, 2 LSBs are ignored.

Value

Selection

0 (00000)

Nominal

1 (00001)

Nominal + 1 Step

2 (00010)

Nominal + 2 Steps

3 (00011)

Nominal + 3 Steps

Nominal + (Value) Steps

31 (11111)

Nominal + 31 Steps

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