Method and apparatus for high speed phase detection

Details Method and apparatus for high speed phase detection Method and apparatus for high speed phase detection

1990-12-06

1991-10-01

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307262, 328133, 328155, 331 1A, 375120, H03K 526, H03K 906

Patent

active

050536494

ABSTRACT:
A phase detector particularly suited for high speed, digital data. The data is auto-correlated with the data shifted through a flip-flop where the flip-flop is clocked by the clocking signal. The data is also delayed by one period by an analog delay line. The output of the flip-flop is auto-correlated with the data and with the data shifted by one period to provide an error signal for a VCO. Ordinary ECL circuits in leaded packages may be employed with data rates in the 300 MHz range.

REFERENCES:
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patent: 4400667 (1983-08-01), Belkin
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patent: 4504791 (1985-03-01), Conway et al.
patent: 4535459 (1985-08-01), Hogge, Jr.
patent: 4628271 (1986-12-01), Takayama
patent: 4628282 (1986-12-01), Hikawa et al.
patent: 4713830 (1987-12-01), McDonald
patent: 4797585 (1989-01-01), Segawa et al.

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