TCA9617B Datasheet, PDF (15/24 Pages) Texas Instruments – Level-Translating FM+ I2C Bus Repeater

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TCA9617B
SCPS259A – DECEMBER 2014 – REVISED DECEMBER 2014
Typical Application (continued)
10.2.3 Series Application
Multiple TCA9617Bs can be connected in series as long as the A side is connected to the B side. I²C bus slave
devices can be connected to any of the bus segments. The number of devices that can be connected in series is
limited by repeater delay/time-of-flight considerations on the maximum bus speed requirements.
V_CCA
V_CCB
240
240
820
820
820
820
820
820
VCCA
SDAA
SCLA
VCCB
SDAB
SCLB
VCCA
SDAA
SCLA
VCCB
SDAB
SCLB
VCCA
SDAA
SCLA
VCCB
SDAB
SCLB
SDA
SCL
Master
1 MHz
TCA9617B
EN
TCA9617B
EN
TCA9617B
EN
Slave
1 MHz
Figure 13. Typical Series Application
10.2.3.1 Design Requirements
Refer to Design Requirements.
10.2.3.2 Detailed Design Procedure
Refer to Detailed Design Procedure.
10.2.3.3 Application Curves
Refer to Application Curves.
11 Power Supply Recommendations
For VCCA, an 0.8-V to 5.5-V power supply is required. For VCCB, a 2.2-V to 5.5-V power supply is required.
Standard decoupling capacitors are recommended. These capacitors typically range from 0.1 µF to 1 µF, but the
ideal capacitance depends on the amount of noise from the power supply.
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