Impedance adaptation process and device for a transmitter and/or

Details Impedance adaptation process and device for a transmitter and/or Impedance adaptation process and device for a transmitter and/or

1994-08-19

1997-01-21

Westin, Edward P.

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

326 83, H03K 1716, H03K 190175

Patent

active

055962858

ABSTRACT:
An integrated circuit (IC) includes a device (10) that adapts the impedance to the characteristic impedance (Zc) of transmission lines (13) each connecting a transmitter (11) to a receiver (12). Two adaptation blocks (14, 15) reproduce the respective structures of the transmitters (11) and receivers (12) and their impedance is adapted by a reference resistor (Rr). A closed loop control device (Len, Lep, Lrn, Lrp) reproduces the adaptation conditions in the transmitters (11) and receivers (12) respectively.

REFERENCES:
patent: 5095231 (1992-03-01), Sartori et al.
patent: 5107230 (1992-04-01), King
patent: 5134311 (1992-07-01), Biber et al.
patent: 5162672 (1992-11-01), McMahan et al.
patent: 5329190 (1994-07-01), Igarashi et al.
patent: 5341039 (1994-08-01), Fukumoto
patent: 5371420 (1994-12-01), Nakao

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