TMG49037 datasheet(10/79 Pages) OSRAM

10 / 79 page

ams Datasheet

Page 9

[v1-01] 2019-Aug-20

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TMG49037 − Electrical Characteristics

Figure 10:

Gesture and Proximity Operating Characteristics, VDD = 1.8 V, TA = 25ºC (unless otherwise noted)

Note(s):

1. Offset varies with power supply characteristics and system noise.

2. Production tested result is the average of 5 readings expressed relative to a calibrated response.

3. Representative result by characterization. Device settings can vary from 1 to 64 pulse count, 4μs to 32μs pulse width, 10mA to 310mA

current setting, and 1x to 8x electrical gain. Refer to Figure 21 for device performance with different settings.

4. Relative mismatch in the response between opposing channels.

5. Production tested result is the standard deviation of 20 readings as a percentage of full scale response.

Parameter

Conditions

Min

Typ

Max

Unit

ADC conversion time step size

μs

Offset

(no target response) (1)

PGAIN = 2 (4x)

PGLDRIVE = 7 (150mA)

PGPULSE_LEN = 1 (8

μs)

No target present

After electrical calibration

counts

Part to part variation (2)

PGAIN = 2 (4x)

PGLDRIVE = 1 (30mA)

PGPULSE_LEN = 1 (8

μs)

d=23mm round target

30mm target distance

After electrical calibration

100

125

Response, absolute (3)

PGAIN = 2 (4x)

PGLDRIVE = 7 (150mA)

PGPULSE_LEN = 1 (8

μs)

100x100mm, 90% reflective

Kodak gray card

100mm target distance

After electrical calibration

670

840

1010

counts

Photodiode relative deviation,

north and south channels (4)

-25

Photodiode relative deviation,

east and west channels (4)

-25

Noise/Signal (5)

PGAIN = 2 (4x)

PGLDRIVE = 2 (50mA)

PGPULSE_LEN = 1 (8

μs)

PGPULSE = 7 (8 pulses)

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