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TMF8801 Datasheet(PDF) 62 Page - OSRAM GmbH

Part # TMF8801
Description  Time-of-Flight Sensor
PDF  73 Pages
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Manufacturer  OSRAM [OSRAM GmbH]
Direct Link  http://www.osram.com
Logo OSRAM - OSRAM GmbH

TMF8801 Datasheet(HTML) 62 Page - OSRAM GmbH

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TMF8801
Application Information
Datasheet
• PUBLIC
DS000648
• v10-00 • 2022-Dec-20
72
│ 61
9.3
Schematic
The TMF8801 needs only 3 small 0402 external capacitors for operation:
Figure 120:
TMF8801 Application Schematic
The SYNC signal connected to GPIO1 can be used to immediately interrupt the TMF8801 VCSEL
operation if the high power illuminator is operating. It needs to be ensured that SYNC does not exceed
the VDD supply of TMF8801 as otherwise an internal protection diode will start conducting. The
VCSEL operation is controlled by setting cmd_data5 of command=0x02 or 0x03 according (see App0
registers). On SYNC assertion, the VCSEL is immediately switched off (typically after 10 µs), on
SYNC de-assertion the VCSEL operation is resumed within >100 µs.
GPIO0 can be used as a general GPIO output signal.
The signals INT/SDA/SCL need an external pullup resistor to the VIO supply (typically 1.8 V).
TMF8801
VCSEL
Optical
Filter
Reflective
Surface
Background
Light
Internal
Reflection
Optics
SPAD,
TDC and
Histogram
Driver
Control
Data
Process
EN
GPIO1
GPIO0
INT
SDA
SCL
VDDC
GNDC
VDDV
GNDV
VDD
GND
Host
VDD
0.1µF/6V3
VDD
2x
0.1µF/6V3
High
Power
Illuminator
VIO
SYNC



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