Subnanosecond programmable phase shifter for a high frequency di

Details Subnanosecond programmable phase shifter for a high frequency di Subnanosecond programmable phase shifter for a high frequency di

1986-11-19

1987-11-24

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307479, 307262, 328 24, 328 55, 328109, H03K 518, H03K 13175

Patent

active

047091703

ABSTRACT:
A circuit for producing a programmable phase shift of clock pulses in response to the data on a group of control lines. The circuit includes a ramp generator stage coupled to drive a comparator stage which has a reference potential input determined by the control line data. The phase shift can be employed to produce a series of subnanosecond delay increments on the clock pulses and is useful in the fine adjustment of a digital phase lock loop.

REFERENCES:
patent: 3568077 (1971-03-01), Fujimoto
patent: 3601708 (1971-08-01), Stempler et al.
patent: 3622914 (1971-11-01), Chung
patent: 4019152 (1977-04-01), Hardwood et al.
patent: 4080574 (1978-03-01), Loosemore et al.
patent: 4533903 (1985-08-01), Yamada et al.
"High-Frequency CMOS Continuous-Time Filters" by Paul R. Gray and Haideh Khorramabadi, IEEE Journal of Solid-State Circuits, vol. SC-19, No. 6, 12-84.

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