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posted in April 2007
GPS module with built-in dead reckoning ensures 100 percent road coverage.
Product News  
4/19/2007   Post a comment
The LEA-4R GPS module has a built-in USB port that eases data transfer by providing connectivity flexibility and bandwidth.
Marvell chip supports Bluetooth, FM
Product News  
4/11/2007   Post a comment
Marvell Technology Group rolled out a single-chip solution that combines Bluetooth core specification version 2.0 with Enhanced Data Rate-compliant baseband, a radio frequency transceiver and a worldwide FM radio receiver.
Comparing WLAN and ZigBee for embedded applications
Design How-To  
4/11/2007   Post a comment
802.11 a/b/g and ZigBee wireless were developed for very different purposes and have different physical networking characteristics, however both have their place in embedded product development.
Understanding the basics of image and carrier suppression measurements
Design How-To  
4/4/2007   Post a comment
In the wireless world, direct upconversion RFICs are prone to several sources of error, and measurements such as carrier and image suppression are required to accurately characterize the effects of these errors.
Under the Hood Teardown: Sanyo W33SA EV-DO handset is in tune with television
Teardown  
4/2/2007   Post a comment
This cdma2000 EV-DO handset makes extensive use of analog circuitry and functions
Under the Hood: Mobile star finder keeps it simple
Teardown  
4/2/2007   Post a comment
In our latest Under the Hood series, Portelligent's David Carey peers into Celestron's SkyScout, a handheld viewing device can be used to identify or locate more than 6,000 celestial objects.


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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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