TLK100 Ethernet PHY Transformerless Operation

The TLK100 is a single-port Ethernet PHY for 10BaseT and 100Base TX signaling. This application report describes a method for using Texas Instruments Ethernet PHY products without a transformer. A transformerless mode has great benefit in the following scenarios: nontypical applications that are sensitive to cost; short-distance, PCB connections (compromises... [Read more]

Designing and Isolated I2C Bus interface by using digital isolators

This article provides a short introduction to I2C Bus operation and then describes how to design an isolated I2C interface by adding only a few external components to a digital capacitive isolator. Buy the ISO7231M Part Now  Read More →

Clock Solution for High-Speed ADCs

This application report highlights the limiting agents associated with the clock source that adversely affect the ADC signal-to-noise performance. The performance of the ADS5527 ADC clocked with the CDCE62005 is shown and compared to ideal baseline performance. Additional improvement topologies are presented, along with measured results that show the... [Read more]

Ethernet Clock Generation

This application report is a guide for using Texas Instruments CDCM6100x in an Ethernet LAN and WAN application as a clock distributor and clock synthesizer along with measured jitter performance results. Buy the CDCM61004 Part Now  Read More →

Troubleshooting I2C Bus Protocol

When using the I2C™ bus protocol, the designer must ensure that the hardware complies with the I2C standard. This application report describes the I2C protocol and provides guidelines on debugging a missing acknowledgment, selecting the pullup resistors, or meeting the maximum capacitance load of an I2C bus. A conflict occurs if devices sharing the... [Read more]

Signaling Rate vs. Distance for Differential Buffers

This report is intended to give some estimate of the maximum transmission distances and data rates of the SN65LVDS100 and SN65LVCP4xx series devices. It provides a brief overview of the effect of transmission media on signal integrity and describes a means for measuring the maximum signaling rate for a given interconnect and total jitter requirement.... [Read more]

Achieving Immunity to Cross-wire Faults with SymPol Technology

Cross-wire faults are a significant problem in many applications where installation of end-equipment and cable connections are made by third party installers, rather than by OEM technicians. Texas Instruments has developed a transceiver which is immune to cross-wire faults. Buy the SN65HVD96 Part Now    Read More →

Interfacing high-voltage applications to low-power controllers

This article explains the functional principle of a DIS and its configuration in a typical industrial interface design. Buy the ISO7231M Part Now  Read More →

Considerations for PCB Layout and Impedance Matching Design in Optical Modules

The optical module offers an effective high-speed solution for a growing telecom market. Data rates range from 155 Mbps to 6 Gbps and even up to 10 Gbps. Transmitter optical sub-assemblies (TOSAs) and laser drivers may have different resistances in a given application, so the reflection could be worse if the designer does not use an impedance transfer... [Read more]

SMBus Compatibility with an I2C Device

An I2C device usually can be controlled by an SMBus host, but there are hardware and software differences with which a designer must deal. This paper offers solutions for this issue. Buy the ADS7924 Part Now  Read More →