TMG39921 datasheet(10/96 Pages) OSRAM

10 / 96 page

ams Datasheet

Page 9

[v1-06] 2018-Feb-27

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TMG3992 − Electrical Characteristics

Figure 10:

Gesture Characteristics, VDD = 3 V, TA = 25ºC, GEN = 1 (unless otherwise noted)

Note(s):

1. Each N/S or E/W pair requires a conversion time of 696.6

μs. For all four directions the conversion requires twice as much time.

2. This parameter ensured by design and characterization and is not 100% tested.

3. Value may be as much as 1.36μs longer than specified.

4. GLDRIVE current may vary from the typical value. LEDBOOST multiplies LDR current by the percentage selected.

5. This is the percent mismatch between the N, S, W, and E channels. No glass or aperture above the module.

6. Number of data samples is 128. This is the standard deviation expressed as percent of full scale signal.

Parameter

Conditions

Min

Typ

Max

Units

ADC conversion time step size (1)

1.39

LED pulse count (2)

GPULSE

pulses

LED pulse width (3)

GPLEN = 0

4.0

μs

GPLEN = 1

8.0

GPLEN = 2

16.0

GPLEN = 3

32.0

LED drive current (4)

GLDRIVE = 0

100

GLDRIVE = 1

GLDRIVE = 2

GLDRIVE = 3

12.5

LEDBOOST = 0

100

LEDBOOST = 1

150

LEDBOOST = 2

200

LEDBOOST = 3

300

Photodiode relative deviation (5)

-12

Gesture noise (6)

GPULSE: 16 Pulses,

GPLEN: 8 μs,

GGAIN: 4x,

GLDRIVE = 0,

LEDBOOST = 0

0.78

1.25

% full

Scale

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