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20th International Conference on VLSI Design held jointly with 6th International Conference on Embedded Systems (VLSID'07)
A 2.5Gbps Quad CMOS Transceiver Cell Using Regulated Supply Low Jitter PLL
Bangalore, India
January 06-January 10
ISBN: 0-7695-2762-0
Vijay Khawshe, Rambus Bangalore, India
Pravin V Kumar, Rambus Bangalore, India
Renu Rangnekar, Rambus Bangalore, India
Kapil Vyas, Rambus Bangalore, India
Kashi Prabu, Rambus Bangalore, India
Mahabaleshwara, Rambus Bangalore, India
Manish Jain, Rambus Bangalore, India
Navin Mishra, Rambus Bangalore, India
Abhijit Abhyankar, Rambus Bangalore, India
A 2.5 Gbps serial link is fabricated in TSMC 90nm process. The link is targeted to support various serial link standards. To maintain a constant transmit swing the link supports automatic calibration for the on die termination (ODT) and bias, which supplies the driver. The self biased [1] regulated PLL dual loop architecture based on [2] is used which minimizes the clock jitter. A replica compensated regulator [3] is used in the PLL which cancels both the high frequency and low frequency components of the noise without affecting the PLL loop stability. A clock and data recovery circuits based on 2x over sampling [4] is implemented inside each individual lane of the serial link. The cell consumes 350mW at 2.5Gbps with transmitted jitter of 44.5ps pk-pk.
Citation:
Vijay Khawshe, Pravin V Kumar, Renu Rangnekar, Kapil Vyas, Kashi Prabu, Mahabaleshwara , Manish Jain, Navin Mishra, Abhijit Abhyankar, "A 2.5Gbps Quad CMOS Transceiver Cell Using Regulated Supply Low Jitter PLL," vlsid, pp.141-145, 20th International Conference on VLSI Design held jointly with 6th International Conference on Embedded Systems (VLSID'07), 2007
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