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Conference ScheduleInfoVault
3-WA1
Using Programmable Logic for Receiver Offset and Yield Enhancement
Wednesday, February 6 | 8:45 am – 9:25 am

Simar Maangat, Senior Design Engineer, Altera
Toan Nguyen, Design Engineer, Altera Corporation
Wilson Wong, Design Engineer, Altera Corporation
Tina Tran, Senior Design Manager, Altera Corporation
Sergey Shumarayev, Director, Altera Corporation
Tim Hoang, Design Engineer, Altera Corporation
A wide-range transceiver, 622 Mbps to 6.5 Gbps, was designed and fabricated in a 90 nm TSMC CMOS logic process. Voltage offsets in the receive path degrade the performance of the transceiver by putting a lower bound on the precision with which a data bit can be measured and cause duty cycle distortion, which, when added with ISI, reduce the overall margin of data recovery directly worsening the BER. Presented in this paper is a methodology to cancel voltage offsets in the receive path with a soft intellectual property core programmed in the PLD.