Gigabit Ethernet transceiver with analog front end

Details Gigabit Ethernet transceiver with analog front end Gigabit Ethernet transceiver with analog front end

2006-05-30

2006-05-30

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including gain control means

C330S051000

Reexamination Certificate

active

07053715

ABSTRACT:
Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.

REFERENCES:
patent: 6147558 (2000-11-01), Sculley
patent: 6621346 (2003-09-01), Nabicht et al.
patent: 6693491 (2004-02-01), Delano
patent: 55-68712 (1980-05-01), None

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