The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, the effect of power via stub resonance on 25Gbps+ signaling is investigated. Two methods of removing lower frequency resonances caused by power vias are proposed for symmetrical high speed signal and power via structures. This paper analyses the effectiveness of the proposed methods by presenting simulations and experimental data. The signaling impact of power vias on conventional solutions...
At 25Gbps and beyond, crosstalk noise can degrade a backplane channel signal quality significantly. High density interconnects can generate high crosstalk noise due to the close proximities of the components. In particular, interfacing dense chips and connectors with PCB requires dense implementation of signal via structures. Placing ground via guards can reduce the field overlap between signal via...
As the data rate continues to increase, novel solutions to overcome the natural frequency limitations of the backplane channels are being proposed. Among them, encoding techniques that require less bandwidth for the same data rate are considered. In this paper, we analyse the impact of different encoding techniques beyond 25 Gb/sec for a link consisting of 2 daughter cards, 2 mated connectors and...
As data communication rates are increasing, the possibility of EM emission from equipment becomes more significant and the task of EMI suppression becomes more challenging. Traditional approaches in addressing EMI/EMC issues are not very efficient and cost effective since the compliance tests are usually performed after the systems are fully developed, which may be at extremely high risk of adding...
The integrated crosstalk noise (ICN) has been proposed in the IEEE 802.3ba standard to measure the crosstalk in the high-speed channel and accepted as a replacement of the ICR (Insertion Crosstalk Ratio) for channel noise estimation. As the PHY options of NRZ, PAM-4 and/or Duobinary are actively explored for higher data rate, a generalized ICN model will be needed for characterizing the channel SI...
Designing backplane links at such high data rates requires the consideration of the interaction between active and passive components. The degree of interaction at 25 Gbps data rates requires a co-design approach with respect to active and passive blocks. In this paper, we start with modelling a 25 Gbps backplane channel in frequency domain and establish the correlation between results obtained from...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.