TM1485TX2DSA

Introduction

TM1485TX2DSA is a +3.3V quad-channel transceiver that is based on an advanced CMOS process. It integrates a 16-bit Receiver, a 16-bit Transmitter, a low-power bi-directional Driver and a Programmable Limiter Amplifier in a single package.

Application Field

TM1485TX2DSA is suitable for many applications like telecommunications, networking, datacom, consumer, computer peripherals, industrial control, medical and video projection. The device transmits data over distances up to 500 meters over twisted-pair cables, is fully backward compatible with the existing twisted-pair standards, and has a transmission speed up to 250Mbps.

Working Principle

The operation of TM1485TX2DSA is based essentially on an electronic switching design. It takes differential input signals at its receiver input, and then sends the signals out using differential line drivers. The device supports spread spectrum modulation, allowing the Receiver to have low-noise sensitivity and balance. The device also has programmable time-outs and a data rate control to ensure that data is transmitted and received accurately.

The Transmitter of the TM1485TX2DSA is used for transmitting data from the source to the data link layer. It contains a differential encoder and auto-negotiation circuitry to ensure that data is transmitted with minimum distortion. The programmable limiter amplifiers can be configured to detect digital data levels beyond the normal signal level and signal the data link layer of errors.

The Driver and Receiver of the device allows for bi-directional communication and improved signal integrity. The Driver sends a differential signal through twisted-pair cables while the Receiver receives the signal. The receiver also accepts data from the twisted-pair cables, decodes the data and passes it to the data link layer. The device can also operate in both serial and parallel modes and is fully compliant with the IEEE 802.3ab standard.

Conclusion

TM1485TX2DSA is an advanced +3.3V quad-channel transceiver designed to work in many applications, such as telecommunication, networking and datacom. The device integrates a 16-bit Receiver, a 16-bit Transmitter, a low-power bi-directional Driver, and a programmable limiter amplifier in a single package. The Transmitter and Driver of the device can be used for bi-directional communication and the programmable limiter amplifiers can detect digital data levels beyond the normal signal level and signal the data link layer of errors.