SY89855UMG

Today’s modern logic systems are designed to have multiple logic functions. Logic-signal switches, multiplexers, and decoders offer increased flexibility in system design. In this article, we look at the SY89855UMG and its application field, as well as its operating principle.

The SY89855UMG is a device from Skyworks Solutions, Inc. It is a low power, high performance, 36-channel digital logic-signal switch. It is a CMOS device and has four, six-channel and two, nine-channel logic-signal switches. Each logic-signal switch and multiplexer has two control lines, two data lines, and one control/data block. The six-channel switching circuits are 125 ohm differential inputs and outputs and the nine-channel switching circuits are 50 ohm differential input and outputs.

The SY89855UMG has various features that make it suitable for use in many industrial applications. For example, it has the ability to select between 36 (18) independent logic signals on six (nine) channels and it has excellent isolation and noise immunity. This makes it an ideal device for applications such as motor control and protection, remote input monitoring, and motor speed control. It is also able to switch high voltage waveforms with a frequency up to 10MHz.

In terms of its operating principle, the SY89855UMG is a logic-signal switch and multiplexer. As such, it is able to select one (two) of eighteen (nine) logic signals for further processing. It does this by providing two separate switching circuits – one for the six-channel switch and another for the nine-channel switch. Each circuit consists of several transistors that are selectively switched on and off by a control signal. Each input/output pair is connected to the transistors and the outputs are then taken from the selected transistor. The transistors are connected in such a way that when no control signal is present, all transistors are "off" and no logic signals can pass through.

The SY89855UMG is an extremely versatile device and is widely used in industrial applications. It is able to switch between eighteen (nine) independent logic signals and can switch high voltage waveforms with a frequency up to 10MHz. The device is also very power efficient and has excellent isolation and noise immunity properties. As such, it is an ideal choice for motor control and protection, remote input monitoring, and motor speed control applications.