TMD2621 datasheet(10/59 Pages) OSRAM

10 / 59 page

Datasheet, Public

Page 9

[v4-00] 2023-Apr-12

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TMD2621 − Detailed Description

Figure 10:

Proximity Integration and Data Sampling in TMD2621

Operational State Diagram

Figure 11:

Operational State Diagram

Note(s):

1. Proximity active time = PPULSE x (2 x (PPULSE_LEN + 42.15μs)) + 78.75μs.

2. All numbers in the above equation are typical values.

PTIME

PSD

PTIME

PSD

PTIME

Prox_Init_Time

Temp_Meas

(if enabled)

PROX_DATA_AVG loop

PSD

PTIME

Prox_Init_Time

Start s hifts

PVSYNC_EN=0

Start s hifts

PVSYNC_EN=0

Start s hifts

PVSYNC_EN=0

Start s hifts

PVSYNC_EN=0

Start s hifts

PVSYNC_EN=0

PON=1

PEN=1

PWEN=1

PVSYNC=1

VSYNC

SLEEP

(PON=0)

IDLE

(PON=1)

Proximity

ACTIVE

(1)

Complete

PTIME

PROX_DATA_AVG

(if enabled)

Update

PDATA

SAI

(if enabled)

PWTIME

(if enabled)

POR

(TActive=1.6ms,

typical)

PEN=1

Hardware

Averaging

Loop 2 to 16

Times

After PON is set, it needs to wait

100μs before enabling PEN.

Sleep

Idle

Active

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