Method and system for providing analog control of digital gain in a wireless device
AssigneeSamsung Electronics Co., Ltd.
InventorsWilliam M. Hurley, Yoonyoung Park
Life of this patent
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Abstract
A method for providing analog control of digital gain in a wireless device is provided. The method includes receiving an analog gain from a baseband modem at a radio frequency integrated circuit (RFIC) having a digital region. The baseband modem is associated with a first operating range, and the digital region of the RFIC is associated with a second operating range. The analog gain is compatible with the first operating range. A digital gain is generated based on the analog gain. The digital gain is converted into a modified digital gain compatible with the second operating range.
Claims26
A method for providing analog control of digital gain in a wireless device, comprising:
- receiving an analog gain from a baseband modem at a radio frequency integrated circuit (RFIC) comprising a digital region, the baseband modem associated with a first operating range and the digital region of the RFIC associated with a second operating range, the analog gain compatible with the first operating range;
- generating a digital gain based on the analog gain;
- and
- converting the digital gain into a modified digital gain compatible with the second operating range, wherein converting the digital gain into the modified digital gain comprises (i) applying a slope-correction factor to the digital gain to generate a slope-corrected signal, and (ii) applying an offset to the slope-corrected signal to generate an offset signal.
A gain control converter for an integrated circuit, comprising:
- a slope corrector operable to receive a digital gain associated with a first operating range and to apply a slope-correction factor to the digital gain to generate a slope-corrected signal;
- an offset applier coupled to the slope corrector, the offset applier operable to receive the slope-corrected signal and to apply an offset to generate an offset signal;
- and
- a limiter coupled to the offset applier, the limiter operable to receive the offset signal and to generate a modified digital gain based on the offset signal and a set of predefined limits, the modified digital gain associated with a second operating range.
An integrated circuit, comprising:
- an analog-to-digital converter (ADC) coupled to a baseband modem associated with a first operating range, the ADC operable to receive an analog gain compatible with the first operating range from the baseband modem and to generate a digital gain based on the analog gain;
- and
- a gain control converter coupled to the ADC, the gain control converter operable to receive the digital gain from the ADC and to generate a modified digital gain based on the digital gain, the modified digital gain compatible with a second operating range associated with a digital region of the integrated circuit, the gain control converter comprising:
- a slope corrector operable to receive the digital gain and to apply a slope-correction factor to the digital gain to generate a slope-corrected signal;
- an offset applier coupled to the slope corrector, the offset applier operable to receive the slope-corrected signal and to apply an offset to generate an offset signal.
Dependencies are inferred from the claim text.