Abstract: A transmission line driver circuit includes: a transmission line driving amplifier having a first transmission terminal and a second transmission terminal; a first signal node; a second signal node; a first adjustable resistor positioned between the first transmission terminal and the first signal node; a second adjustable resistor positioned between the second transmission terminal and the second signal node; a first voltage difference generating circuit coupled with two terminals of the first adjustable resistor to generate a first voltage difference value; a second voltage difference generating circuit coupled with two terminals of the second adjustable resistor to generate a second voltage difference value; sample-and-hold circuits for generating sampled signals according to the first voltage difference value and the second voltage difference value; a comparing circuit for comparing the sampled signals; and an adjusting circuit for adjusting resistance of the first and/or second adjustable resistors accor

Abstract: A transmission line driver circuit includes: a transmission line driving amplifier having a first transmission terminal and a second transmission terminal; a first signal node; a second signal node; a first adjustable resistor positioned between the first transmission terminal and the first signal node; a second adjustable resistor positioned between the second transmission terminal and the second signal node; a first voltage difference generating circuit coupled with two terminals of the first adjustable resistor to generate a first voltage difference value; a second voltage difference generating circuit coupled with two terminals of the second adjustable resistor to generate a second voltage difference value; sample-and-hold circuits for generating sampled signals according to the first voltage difference value and the second voltage difference value; a comparing circuit for comparing the sampled signals; and an adjusting circuit for adjusting resistance of the first and/or second adjustable resistors accor

Abstract: An amplifier circuit includes an amplifier and a noise suppression block. The amplifier is arranged for receiving an input signal at an input port and generating an output signal at an output port according to the input signal. The noise suppression block is coupled between the input port and the output port of the amplifier, and arranged for receiving the input signal and the output signal and applying noise suppression to the output signal generated from the amplifier according to the received input signal and the received output signal.

Abstract: A single-phase down-converter includes a mixer and a local oscillator (LO) signal generator. The mixer is arranged to generate a mixer output signal by mixing a radio frequency (RF) signal and an LO signal. The LO signal generator is coupled to the mixer, and arranged to generate the LO signal with a frequency shifted from an RF carrier frequency by a specific intermediate frequency, wherein when image interference exists, the specific intermediate frequency makes the image interference translated to guard band(s) of channel(s).

Abstract: An amplifier circuit includes an amplifier and a noise suppression block. The amplifier is arranged for receiving an input signal at an input port and generating an output signal at an output port according to the input signal. The noise suppression block is coupled between the input port and the output port of the amplifier, and arranged for receiving the input signal and the output signal and applying noise suppression to the output signal generated from the amplifier according to the received input signal and the received output signal.