STDVE001A Datasheet, PDF (41/49 Pages) STMicroelectronics – Adaptive single 3.4 Gbps TMDS/HDMI signal equalizer

STDVE001A
Application information
5.3.1
I²C lines application information
A typical application is shown in the figure below. In the example, the system master is
running on a 3.3 V I²C-bus while the slave is connected to a 5 V bus. Both buses run at
100 kHz unless the slave bus is isolated and then the master bus can run at 400 kHz.
Master devices can be placed on either bus.
Figure 21. Typical application of I²C bus system
3.3V
5.0V
SDA
SCL
Bus master
400 kHz
SDA
SCL
SDA
SCL
STDVE 001 A
SDA
SCL
Slave
100 kHz
BUS 0
BUS 1
The STDVE001A DDC lines are 5 V tolerant; so it does not require any extra circuitry to
translate between the different bus voltages.
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