Datasheet

1.4 Application schematic
The following figure shows the application schematic of the VL53L4CD.
Figure 3. VL53L4CD schematic
Capacitors on external supply AVDD should be placed as close as possible to the AVDDVCSEL and AVSSVCSEL
module pins.
External pull up resistor values can be found in I2C-bus specification. Pull ups are typically fitted only once per
bus, near the host. For suggested values see Table 3. Suggested pull-up and series resistors for I2C Fast mode
and Table 4. Suggested pull up and series resistors for I2C Fast mode plus.
XSHUT pin must always be driven to avoid leakage current. A pull up is needed if the host state is not known.
XSHUT is needed to use HW standby mode (no I2C communication).
XSHUT and GPIO1 pull up recommended values are 10 kOhms.
GPIO1 should be left unconnected if not used.
The following tables list recommended values for pull up and series resistors for an AVDD of 1.8 V to 2.8 V in I2C
Fast mode (up to 400 kHz) and Fast mode plus (up to 1 MHz).
Table 3. Suggested pull-up and series resistors for I2C Fast mode
I2C load capacitance (CL)
(1)
Pull up resistor (Ohms) Series resistor (Ohms)
C
L
≤ 90 pF
3.6 k 0
90 pF < C
L
≤ 140 pF
2.4 k 0
140 pF < C
L
≤ 270 pF
1.2 k 0
270 pF < C
L
≤ 400 pF
0.8 k 0
1. For each bus line, CL is measured in application PCB by customer.
VL53L4CD
Application schematic
DS13812 - Rev 3
page 5/36