SparkFun Differential I2C Breakout - PCA9615 (Qwiic)
BOB-14589
The SparkFun Differential I
2
C Breakout is the fastest and easiest way to extend the range of your I
2
C
communication bus. The breakout uses NXP’s PCA9615 IC, which converts the two default I
2
C
signals into four differential signals, two for SCL and two for SDA. The differential signals are sent
over an Ethernet cable, which attaches to the breakout through the on-board RJ-45 connectors The
differential signaling allows the I
2
C signals to reach distances of up to 100ft. while still maintaining
their signal integrity! To make it even easier to get your readings, all communication is enacted
exclusively via I
2
C, utilizing our handy Qwiic system so no soldering is required to connect it to the
rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a
breadboard.
The simplicity of the Differential I
2
C Breakout is one of its biggest appeals. Other I
2
C communication
methods require packetizing I
2
C communication into another protocol, be it RS-485 or 1-Wire.
However, the PCA9615 keeps the I
2
C protocol by utilizing a differential transceiver.
Whether you need to extend the range of an I
2
C sensor on an autonomous vehicle plagued with
noise from motors or want to create a vast sensor network in your home or office, the Qwiic
Differential I
2
C Breakout is a great solution to extend distance and reduce noise susceptibility.
The SparkFun Qwiic connect system is an ecosystem of I
2
C sensors, actuators, shields and cables
that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm
pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized
connections mean you can’t hook it up wrong.
FEATURES
Uses the PCA9615 buffer
I
2
C Supply voltage range 2.3-5.5V
Differential Supply voltage range 3-5.5V
draws 16µA of current
Extends I
2
C bus up to 100 feet
Data rate up to 400kHz
2x Qwiic Connectors
https://www.sparkfun.com/products/14589 6‐4‐18
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