TMD2712 datasheet(26/54 Pages) OSRAM

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Datasheet, Public

Page 25

[v4-00] 2023-Jan-02

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TMD2712 − Register Description

PCFG1 Register (Address 0x8F)

Figure 32:

PCFG1 Register

PCFG2 Register (Address 0x90)

Figure 33:

PCFG2 Register

Addr: 0x8F

PCFG1

Bit

Bit Name

Default

Access

Bit Description

7:6

PPULSE_

LENH

These bits are the 2 most significant bits of the 10-bit

Pulse Length control setting. The lower 8 bits are in the

PCFG2 register. See the PCFG2 register for details.

5:4

Reserved

Reserved. Must be set to default value.

3:0

PLDRIVE

(0010)

This field sets the drive strength of the IR VCSEL

current. Values are approximate; actual current

through the VCSEL is factory trimmed to normalize IR

intensity. For lowest part to part variation, 8mA is

recommended.

Value

VCSEL Current

5 (0101)

7mA

6 (0110)

8mA

7 (0111)

9mA

8 (1000)

10mA

All other values

Reserved

Addr: 0x90

PCFG2

Bit

Bit Name

Default

Access

Bit Description

7:0

PPULSE_LENL

0x20

These bits are the 8 least significant bits of the 10-bit

Pulse Length control setting. The upper 2 bits are in

the PCFG1 register. The minimum pulse length is 4μs.

Value

Pulse Length

3 (0000000011)

4μs

32 (0000100000)

33μs

Pulse Length = (PULSE_LEN + 1) μs

1023 (1111111111)

1024μs

TMD2712 Datasheet(PDF) 26 Page - OSRAM GmbH

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