| 摘要 |
A receiver circuit for receiving an analog signal comprises a mixer device, a first integrator device coupled to the mixer device, a second integrator device following the first integrator device, a quantizer device, and first and second feedback digital/analog converters. The mixer device mixes the analog signal with a local-oscillator frequency and outputs a mixer current signal. The first integrator device generates a first intermediate signal by integrating the mixer current signal summed with a first feedback current signal, the second integrator device generates a quantizer input signal by integrating the first intermediate signal summed with a second feedback current signal, and the quantizer device generates a digital output signal by quantizing the quantizer input signal. The first feedback digital/analog converter converts the digital output signal into the first feedback current signal and the second feedback digital/analog converter converts the digital output signal into the second feedback current signal.
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