Cypress Semiconductor

Thus the linear-taper digital potentiometer can convert to a logarithmic-taper potentiometer. This works best with higher-resolution linear pots (128 taps or greater) because logarithmic resolution is severely limited for linear pots with fewer taps. Also, other internal structures my cause some inaccuracies at the endpoints. The accompanying source code converts desired attenuation to tap position as well as desired tap position to the corresponding attenuation.

What will 4G be like? Eventually, according to plans of the International Telecommunication Union, it will provide 100 Mbps data rates when you're mobile and 1 Gbps when you're stationary. It will support mobile phones, of course, and also mobile broadband Internet and multimedia services. Even mobile HDTV is a possibility.

It was difficult to update the testbench and firmware dependent upon the update. Sometimes hardware changes would not be properly communicated to the testbench and firmware organizations, resulting in days of delay to debug an unexpected change in the hardware.

The serial PCI Express chip-to-chip link ranked third in our list of most familiar interconnect technologies, with 82.2 percent of respondents saying they were very or somewhat familiar with it. That put Express just behind the venerable PCI and Gigabit Ethernet (at 91.4 and 90.1 percent, respectively), and well ahead of Fibre Channel (at 74.5 percent), even though the latter technology has been available in the market for a decade.

resistor value table

What will 4G be like? Eventually, according to plans of the International Telecommunication Union, it will provide 100 Mbps data rates when you're mobile and 1 Gbps when you're stationary. It will support mobile phones, of course, and also mobile broadband Internet and multimedia services. Even mobile HDTV is a possibility.

It was difficult to update the testbench and firmware dependent upon the update. Sometimes hardware changes would not be properly communicated to the testbench and firmware organizations, resulting in days of delay to debug an unexpected change in the hardware.

The serial PCI Express chip-to-chip link ranked third in our list of most familiar interconnect technologies, with 82.2 percent of respondents saying they were very or somewhat familiar with it. That put Express just behind the venerable PCI and Gigabit Ethernet (at 91.4 and 90.1 percent, respectively), and well ahead of Fibre Channel (at 74.5 percent), even though the latter technology has been available in the market for a decade.

The mechanism of supply margining is the same as that of supply controlling: adjust and hold the DC value of the supply. So naturally, ADOC also benefits voltage margin testing. If a mandate is set to margin test boards to &plusmn10% with supplies that are only accurate to ±4%, the results can be unpredictable. For instance, are the supplies being margined to &plusmn6% or are they margined to &plusmn14%? In the 6% case the reliability test is ineffective. In the 14% case, a class of boards could be subject to yield or failure loss and the false positives result in longer debug times. Using ADOC to margin voltages in these tests increases the confidence of the test because it is well known how close the testing is to the margin limits.

By Kouichi Yamguchi assistant manager and Muneo Fukaishi principal researcher, System Devices Research Laboratories, NEC Corp., Sagamihara, Kanagawa, Japan

Modern trends in the industry show that the number of local control systems constantly grows. For instance, in the latest models BMW offers nine main electronic control systems. For implementation of more complex options, closed control loops connect with each other by transmitters or communication system bridges.

CMR1-10 BK PBFREE_Datasheet PDF

It was difficult to update the testbench and firmware dependent upon the update. Sometimes hardware changes would not be properly communicated to the testbench and firmware organizations, resulting in days of delay to debug an unexpected change in the hardware.

The serial PCI Express chip-to-chip link ranked third in our list of most familiar interconnect technologies, with 82.2 percent of respondents saying they were very or somewhat familiar with it. That put Express just behind the venerable PCI and Gigabit Ethernet (at 91.4 and 90.1 percent, respectively), and well ahead of Fibre Channel (at 74.5 percent), even though the latter technology has been available in the market for a decade.

The mechanism of supply margining is the same as that of supply controlling: adjust and hold the DC value of the supply. So naturally, ADOC also benefits voltage margin testing. If a mandate is set to margin test boards to &plusmn10% with supplies that are only accurate to ±4%, the results can be unpredictable. For instance, are the supplies being margined to &plusmn6% or are they margined to &plusmn14%? In the 6% case the reliability test is ineffective. In the 14% case, a class of boards could be subject to yield or failure loss and the false positives result in longer debug times. Using ADOC to margin voltages in these tests increases the confidence of the test because it is well known how close the testing is to the margin limits.

By Kouichi Yamguchi assistant manager and Muneo Fukaishi principal researcher, System Devices Research Laboratories, NEC Corp., Sagamihara, Kanagawa, Japan

The serial PCI Express chip-to-chip link ranked third in our list of most familiar interconnect technologies, with 82.2 percent of respondents saying they were very or somewhat familiar with it. That put Express just behind the venerable PCI and Gigabit Ethernet (at 91.4 and 90.1 percent, respectively), and well ahead of Fibre Channel (at 74.5 percent), even though the latter technology has been available in the market for a decade.

The mechanism of supply margining is the same as that of supply controlling: adjust and hold the DC value of the supply. So naturally, ADOC also benefits voltage margin testing. If a mandate is set to margin test boards to &plusmn10% with supplies that are only accurate to ±4%, the results can be unpredictable. For instance, are the supplies being margined to &plusmn6% or are they margined to &plusmn14%? In the 6% case the reliability test is ineffective. In the 14% case, a class of boards could be subject to yield or failure loss and the false positives result in longer debug times. Using ADOC to margin voltages in these tests increases the confidence of the test because it is well known how close the testing is to the margin limits.

By Kouichi Yamguchi assistant manager and Muneo Fukaishi principal researcher, System Devices Research Laboratories, NEC Corp., Sagamihara, Kanagawa, Japan

type of ic

The mechanism of supply margining is the same as that of supply controlling: adjust and hold the DC value of the supply. So naturally, ADOC also benefits voltage margin testing. If a mandate is set to margin test boards to &plusmn10% with supplies that are only accurate to ±4%, the results can be unpredictable. For instance, are the supplies being margined to &plusmn6% or are they margined to &plusmn14%? In the 6% case the reliability test is ineffective. In the 14% case, a class of boards could be subject to yield or failure loss and the false positives result in longer debug times. Using ADOC to margin voltages in these tests increases the confidence of the test because it is well known how close the testing is to the margin limits.

By Kouichi Yamguchi assistant manager and Muneo Fukaishi principal researcher, System Devices Research Laboratories, NEC Corp., Sagamihara, Kanagawa, Japan

By Kouichi Yamguchi assistant manager and Muneo Fukaishi principal researcher, System Devices Research Laboratories, NEC Corp., Sagamihara, Kanagawa, Japan

Modern trends in the industry show that the number of local control systems constantly grows. For instance, in the latest models BMW offers nine main electronic control systems. For implementation of more complex options, closed control loops connect with each other by transmitters or communication system bridges.

If node X is trying to establish a connection to node Y, but doesn't have a 'next best step' to node Y, it can send a request towards the top of the hierarchy requesting a route to node Y. This request is called an HSPP. Because node Y has already pushed a route to itself up the hierarchy, node X is guaranteed to find a route to node Y if it looks up the hierarchy. This allows a first connection to be established between any two nodes in the network without the need for a global flood (as is the problem with a conventional flat routing protocol).

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