Alternately updated digital to analog converters
AssigneeTexas Instruments Incorporated
InventorsEeshan MIGLANI, Visvesvaraya Appala PENTAKOTA
Life of this patent
Estimating the term…
Abstract
A modulator of an analog to digital converter includes a quantizer component configured to generate a digital signal based on a clock input operating at a sample rate. The modulator further includes a first digital to analog converter (DAC) configured to generate first DAC output at half the sample rate. The modulator further includes a second DAC configured to generate second DAC output at half the sample rate, where the first DAC and the second DAC are updated at alternate cycles of the clock input.
Claims22
A modulator of an analog to digital converter, the modulator comprising:
- a quantizer component configured to generate a digital signal based on a clock input operating at a sample rate;
- a first digital to analog converter (DAC) configured to generate first DAC output at half the sample rate;
- and
- a second DAC configured to generate second DAC output at half the sample rate, wherein the first DAC and the second DAC are updated at alternate cycles of the clock input.
A modulator of an analog to digital converter, the modulator comprising:
- a quantizer component configured to generate a digital signal based on a clock input;
- a first digital to analog converter (DAC) configured to generate first DAC output including pulses as wide as two pulses of the clock input;
- and
- a second DAC configured to generate second DAC output including pulses as wide as two pulses of the clock input.
A transceiver comprising:
- a receiver;
- and
- an analog digital converter (ADC) coupled to the receiver, the ADC including:
- a modulator component comprising:
- a quantizer component configured to generate a digital signal based on a clock input operating at a sample rate;
- a first digital to analog converter (DAC) configured to generate first DAC output at half the sample rate;
- and
- a second DAC configured to generate second DAC output at half the sample rate, wherein the first DAC and the second DAC are updated at alternate cycles of the clock input.
A modulator of an analog to digital converter, the modulator comprising:
- a quantizer component configured to generate a digital signal based on a clock input;
- a first digital to analog converter (DAC) configured to receive input from a first exclusive or (XOR) device, the first XOR device receiving odd pulses of the clock input and odd values of the digital signal;
- and
- a second DAC configured to generate second DAC configured to receive input from a second XOR device, the second XOR device receiving even pulses of the clock input and even values of the digital signal.
Dependencies are inferred from the claim text.