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skaneta
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re: Grasp the critical issues for a functioning JESD204B interface
skaneta   4/30/2013 9:33:18 PM
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Ah, I see. I'll check it out. Thank you for getting back to me!

Adesimone
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re: Grasp the critical issues for a functioning JESD204B interface
Adesimone   4/30/2013 7:21:01 PM
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Analog Devices is not planning on releasing JESD204 IP for FPGA use. Instead, interoperability work is ongoing with FPGA vendors and IP houses to ensure that the available IP works properly with our converters. This allows the designer to select an IP that is optimized for their chosen logic device and application. Analog Devices offers an FPGA reference design section on the wiki page (wiki.analog.com) including one for a JESD204B Analog to digital converter (AD9250). The AD9250 JESD204B reference design is located at: wiki.analog.com/resources/fpga/xilinx/interposer/ad9250.

skaneta
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re: Grasp the critical issues for a functioning JESD204B interface
skaneta   4/26/2013 4:26:26 PM
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Hi guys, This looks like a good, practical overview of the JESD204B standard. Since I'm sure Analog Devices would like this to be as easy as possible for people to adopt, are you planning to release a Verilog or VHDL IP core that engineers can just drop in and connect to FPGA transceivers? The standard seems straightforward but it looks like there's a fair amount of firmware development involved. Just curious, I know there are other manufacturers would probably gain from such an effort on your part. Thanks!



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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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