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AssigneeQUALCOMM Incorporated
InventorsSeyed Arash Mirhaj, Elias Dagher, Yongjian Tang, Dinesh Alladi, Masoud Ensafdaran, Lei Sun, Anand Meruva, Yuhua Guo, Balasubramanian Sivakumar
Estimating the term…
Certain aspects of the present disclosure provide methods and apparatus for calibrating time-interleaved analog-to-digital converter (ADC) circuits and generating a suitable signal for such calibration. Certain aspects provide a signal generator for calibrating a time-interleaved ADC circuit having a plurality of channels. The signal generator generally includes a pattern generator configured to receive a periodic signal and to output a bitstream based on the periodic signal and a conversion circuit having an input coupled to an output of the pattern generator and configured to generate a waveform based on the bitstream. The bitstream has a bit pattern with a total number of bits that shares no common factor with a number of the channels and includes a relatively lower frequency component combined with a relatively higher frequency component.
A signal generator for calibrating a time-interleaved analog-to-digital converter (ADC) circuit having a plurality of channels, comprising:
A method of generating a waveform for calibrating a time-interleaved analog-to-digital converter (ADC) circuit having a plurality of channels, comprising:
An apparatus for generating an analog waveform for calibrating a time-interleaved analog-to-digital converter (ADC) circuit having a plurality of channels, the apparatus comprising:
Dependencies are inferred from the claim text.