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What is I2C repeater?
Texas Instruments TCA9802 I2C Bus Buffer/Repeater is a dual-channel bi-directional buffer intended for I2C bus and SMBus/PMBus systems. This device provides bi-directional level shifting (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages (1.65V to 3.6V).
What is a bus repeater?
(1) A board that pushes a printed circuit board out of the way of surrounding boards for testing purposes. It plugs into an expansion slot, and the expansion card plugs into the bus extender. (2) A device that extends the physical distance of a bus. See repeater.
How long can an I2C-bus be?
about 1 meter
So the maximum bus length of an I2C link is about 1 meter at 100 Kbaud, or 10 meters at 10 Kbaud. Unshielded cable typically has much less capacitance, but should only be used within an otherwise shielded enclosure.
CAN network repeater?
A CAN repeater can be used to regenerate the CAN signal for very long CAN lines or it can help to increase the maximum count of nodes in a CAN system. Due to the fact that a CAN repeater is transparent for the CAN signal error frames are also propagated.
What is extended bus topology?
The EXTEND-A-BUS series of fieldbus extenders enable the geographic expansion of CAN-based device networks such as DeviceNet and Smart Distributed System by linking individual CAN subnets together into a single larger network.
What are i 2 C repeaters and extenders used for?
I 2 C-bus repeaters, hubs and extenders are also used to isolate capacitance from the backplane in a wide array of device applications. New Fast-Mode Plus Devices Operate at 1 MHz Up to 540 pF
Which is the NXP I2C bus extender IC?
NXP PCA9600 I2C bus extender IC is used as the main component of this module. The PCA9600 is designed to isolate I²C-bus capacitance, allowing long buses to be driven in point-to-point or multidrop applications. It can operate at speed up to at least 1 MHz.
Which is the best I2C repeater hub for SMBus?
– PCA9515 I2C Bus Repeater supports two segments of 400 pF with channel enable. – PCA9516 5-channel I2C Hub supports five segments of 400 pF for a total I2C or SMBus capacitance of 2000 pF with 4 channel enables.
Can you extend the range of an I2C cable?
Since i2c can accommodate 400pF at most, this gives you about a 7m limit and, in my experience, things get flaky long before that. To reliably connect sensors with longer cables, you should consider an i2c range extender.