Popular electrical standards such as USB, Ethernet, RS-485 and CAN use differential signaling
and balanced twisted-pail media to provide reliable high-speed communication.
has been around for a long time, and there is very little chance of it disappearing from the PCB design scene.
allows rejection of cross-talk and ground-bounce as common-mode noise.
The unfortunate problem is that many engineers wait until too late in the overall design process to start worrying or addressing high-speed differential signaling
issues," Ritchey continued.
The differential signal already has a built-in reference, thus differential signaling
can be used in situations where the driver and receiver do not share the same reference (ground).
DRSL Signaling -- a 200mV differential signaling
standard that provides superior common mode noise rejection with an on-chip terminated point-to-point topology that minimizes reflections and reduced signal transition times associated with device loading and PCB trace stubs.
The AD9445 also has an on-chip reference and track-and-hold, and parallel low-voltage differential signaling
(LVDS) outputs to ease the interface to digital down-converters.
As with the AD9444 and the AD9445, the new AD9446 features parallel low-voltage differential signaling
(LVDS) outputs, including an output clock, which simplifies the interface to digital processing components and reduces the potential for digital noise coupling back into the ADC core.
Specifically, the device provides differential signaling
capability to the CAN bus via the transmit and receive pins of the CAN controller.
In addition, by using the Reduced Swing Differential Signaling
(RSDS(R)) for its data signal interface, the ML9156 enables low Electro Magnetic Interference (EMI).
The ADC also features parallel low-voltage differential signaling
(LVDS) outputs, including an output clock, simplifying the interface to digital down-converters and reducing the potential for digital noise coupling back into the ADC core.