Low phase noise agile up converter

Details Low phase noise agile up converter Low phase noise agile up converter

1989-09-01

1991-08-06

Eisenzopf, Reinhard J.

Telecommunications

Transmitter

Frequency conversion

358186, 455260, 455265, H04B 104

Patent

active

050384040

ABSTRACT:
The converter has two mixer stages each including a phase locked loop with an oscillator controlled by a phase comparator. The frequency reference to both stages is provided by a single master reference. The frequency of the oscillator in the first stage is offset to accommodate the three different broadcast frequency conventions. A high frequency reference permits the second stage to compensate for noise kilohertz away from the carrier. A local oscillator output which is also phase locked to the master reference is provided for an external video modulator.

REFERENCES:
patent: 4545072 (1985-10-01), Skutta et al.
patent: 4551856 (1985-11-01), Victor et al.
patent: 4575761 (1986-03-01), Carlson et al.
patent: 4888815 (1989-12-01), Ahlemeyer et al.
patent: 4918403 (1990-04-01), Martin

Affiliated with

Also associated with

Rating

Low phase noise agile up converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low phase noise agile up converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low phase noise agile up converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1993302