Integrated front-end passive equalizer and method thereof

Details Integrated front-end passive equalizer and method thereof Integrated front-end passive equalizer and method thereof

2011-04-12

2011-04-12

Jones, Stephen E (Department: 2817)

Wave transmission lines and networks

Coupling networks

Equalizers

C333S032000

Reexamination Certificate

active

07924113

ABSTRACT:
A passive equalizer circuit incorporated at a front-end of an integrated receiver circuit uses passive components that are distributed between inside and outside of an integrated circuit package. The passive equalizer circuit has off-chip components that are placed on a printed circuit board and on-chip components that are fabricated on a common integrated circuit die as a receiver chip. The on-chip components include one or more variable resistors for adjusting a degree of equalization. The off-chip components include one or more resistors for fine tuning input impedance matching of the integrated receiver circuit.

REFERENCES:
patent: 7394331 (2008-07-01), Yeung et al.
patent: 2004/0071219 (2004-04-01), Vorenkamp et al.
patent: 2008/0238587 (2008-10-01), Shin et al.
patent: 2009/0034600 (2009-02-01), Chu
Gondi et al., Equalization and Clock and Data Recovery Techniques for 10-Gb/s CMOS Serial-Link Receivers, IEEE Journal of Solid-State Circuits, vol. 42, No. 9 Sep. 2007, pp. 1999-2011.

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