Texas Instruments Corporation

Uday Kiran Meda

Srinivas Theertham

Srikanth Manian

Subhashish Mukherjee

Jayawardan Janardhanan

Yogesh Darwhekar

Pranav Kumar

Arpan Sureshbhai Thakkar

Jagdish Chand

Apoorva Bhatia

A system includes a data path and a phase-locked loop (PLL) coupled to the data path. The system also includes a voltage-controlled oscillator (VCO) coupled to the PLL. The VCO includes an LC circuit with first and second differential output terminals. The VCO also includes a first resistor coupled between the first differential output terminal and drain terminals of a first pair of complementary metal-oxide semiconductor (CMOS) transistors. The VCO also includes a second resistor coupled between the second differential output terminal and drain terminals of a second pair of CMOS transistors.

Voltage-controlled oscillator (VCO) with LC circuit and series resistors

A frequency synthesizer includes a phase-locked loop (PLL). The PLL includes a first voltage-controlled oscillator (VCO) and a second VCO, each comprising an oscillator, a capacitor bank, and a bias circuit. The capacitor bank is configured to selectably adjust an output frequency of the oscillator. The bias circuit is configured to provide a bias current to the oscillator, and includes a current digital-to-analog converter (IDAC), and an amplifier coupled to the IDAC and configured to drive the oscillator.

Frequency synthesizer

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Hyderabad Telangana, India

Uday Kiran Meda