PHASE SHIFTER CHIP RADIO FREQUENCY SELF-TEST

PHASE SHIFTER CHIP RADIO FREQUENCY SELF-TEST

A method (300) includes selecting a first output (262, 262a) from a phased locked loop (260) and sending the first output from the phased locked loop to a first device under test (214, 214a) and a second device under test (214, 214b). The method includes adjusting a first phase rotator (226, 226a) c...

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Hauptverfasser: FELDMAN, Arnold R, MOSSAWIR, Benjamin Joseph
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator FELDMAN, Arnold R
MOSSAWIR, Benjamin Joseph
description A method (300) includes selecting a first output (262, 262a) from a phased locked loop (260) and sending the first output from the phased locked loop to a first device under test (214, 214a) and a second device under test (214, 214b). The method includes adjusting a first phase rotator (226, 226a) connected to the first device under test to a first rotator phase value (228, 228a) of zero. The method includes determining a collection of phase detector values (252) of a phase detector (250) connected to the second device under test by adjusting a second phase rotator (226, 226b) connected to the second device under test to sweep through a phase range. The method includes measuring the phase detector values of the phase detector, and determining a phase detector gain (254) of the phase detector by averaging the collection of phase detector values and storing the phase detector gain.
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subjects ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title PHASE SHIFTER CHIP RADIO FREQUENCY SELF-TEST
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