US 6,192,085 B1Granted

Circuit arrangement with a data sequence generator

AssigneeTemic Telefunken microelectronic GmbH

InventorBernd Vetters

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Abstract

A circuit arrangement with a data sequence generator for the generation of an oscillator signal as a sequence of digital data, and having the following circuit parts: a first multiplication unit driven by a first auxiliary signal and a first control signal, where the first control signal corresponds to the sine of a manipulated variable that determines the frequency of the oscillator signal; a second multiplication unit driven by a second auxiliary signal, where the second control signal corresponds to the cosine of the manipulated variable; a third multiplication unit driven by a third auxiliary signal and a third control signal, where the third control signal corresponds to the sum of the first and second control signal; a first adding unit driven by the first multiplication unit and third multiplication unit; a second adding unit driven by the first multiplication unit and the second multiplication unit; a first time-delay unit driven by the first adding unit, where the oscillator signal is provided as a third auxiliary signal at the output of the first time-delay unit; a second time-delay unit driven by the second adding unit, where the second auxiliary signal is provided at the output of the second time-delay unit; a weighting unit for weighting the third auxiliary signal with a factor of 2, and, a third adding unit driven by the second time-delay unit and the weighting unit, where the first auxiliary signal is provided at the output of the third adding unit.

Claims5

Dependent claims

Circuit arrangement with a data sequence generator (D) for generating an oscillator signal (sin a) as a sequence of digital data, wherein there is

a first multiplication unit (M1) driven by a first auxiliary signal (h1) and a first control signal (sin c), where the first control signal (sin c) corresponds to the sine of a manipulated variable (c) that determines the frequency of the oscillator signal (sin a),
a second multiplication unit (M2) driven by a second auxiliary signal (h2) and a second control signal (cos c), where the second control signal (cos c) corresponds to the cosine of the manipulated variable (c),
a third multiplication unit (M3) driven by a third auxiliary signal (h3) and a third control signal (sin c+cos c), where the third control signal (sin c+cos c) corresponds to the sum of the first and second control signals (sin c, cos c),
a first adding unit (A1) driven by the first multiplication unit (M1) and third multiplication unit (M3),
a second adding unit (A2) driven by the first multiplication unit (M1) and the second multiplication unit (M2),
a first time-delay unit (T1) driven by the first adding unit (A1), where the oscillator signal (sin a) is provided as third auxiliary signal (h3) at the output of the first time-delay unit (T1),
a second time-delay unit (T2) driven by the second adding unit (A2), where the second auxiliary signal (h2) is provided at the output of the second time-delay unit (T2),
a weighting unit (G) for weighting the third auxiliary signal (h3) with a factor of 2,
a third adding unit (A3) driven by the second time-delay unit (T2) and the weighting unit (C), where the first auxiliary signal (h1) is provided at the output of the third adding unit (A3).

6 more elements

Dependencies are inferred from the claim text.