Hardware

AN3245

4/19

Doc ID 17747 Rev 1

1

Hardware

1.1

External components

1.1.1

Typical application circuit

Figure 1.

Typical application schematic

Note:

Recommended connection at RSTB is based on the use of Baseband/CPU GPIO as the

control signal.

In a typical application, the following external components are required:

●

R1: 10 k

Ω pull-up resistor at RSTB

●

R2: 2.2 k

Ω - 10 kΩ pull-up resistor at INTB

●

R3: 2.2 k

Ω - 10 kΩ pull-up resistor at SCL (It is recommended that Vpullup ≥ VCC)

●

R4: 2.2 k

Ω - 10 kΩ pull-up resistor at SDA (It is recommended that Vpullup ≥ VCC)

●

C1: 100 nF capacitor at VCC