Mediatek Corporation

Narayanan Baskaran

Caiyi Wang

Hsin-Hung Chen

Chih-Yuan Lin

Po-Sen Tseng

Jing Li

Wei-Hsin Tseng

Jenwei Ko

Ming-Chou Wu

Ravikanth Venkata Suravarapu

Chieh-Hsun Hsiao

Saravanan Rajapandian

Wen-Chang Lee

A transmission interface between at least a first module and a second module is proposed. The transmission interface includes at least two physical transmission mediums. Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated. The at least two physical transmission mediums include a first physical transmission medium arranged to carry a first multiplexed signal including a first IF signal and a reference clock signal. The first IF signal and the reference clock signal are at different frequencies.

Method for transferring signals via transmission interface and communications apparatus utilizing the same

A transmission interface between at least a master module and a slave module is proposed. The transmission interface includes a predetermined number of physical transmission medium(s). Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated, and the predetermined number is not smaller than a number of intermediate frequency (IF) stream(s) to be transmitted.

A current buffer used in a receiver arrangement includes a direct path mode and a mirror path mode. The direct path mode includes a plurality of first set of transistors and a plurality of first set of current sources turned on while all remaining transistors and current sources are turned off, during the direct path mode a current signal at an input node directly appears at an output node. The mirror path mode includes a first transistor and a first current source being turned off while a plurality of second set of transistors and a plurality of second set of current sources are turned on. The current signal goes through a current mirror pair and appears at the output node with a gain which is controlled by slicing one of transistors of the current mirror pair and a second current source allowing multiple gains in the mirror path mode.

Low noise, programmable gain current buffer

A receiver includes LNA-mixer arrangement, a current buffer arrangement and an analog filter arrangement. The LNA-mixer arrangement receives a plurality of input signals and provides a wide-band input match for a specified frequency range of operation. The LNA-mixer arrangement includes a plurality of LNA structures and a plurality of mixer structures where each of the LNA structure path is coupled to a single mixer structure. The LNA-mixer arrangement outputs a first signal. The current buffer arrangement receives the first signal and reduces the Image Rejection (IR) asymmetry between the high frequency portion and the low frequency portion of the first signal as well as provides a gain to the first signal. The current buffer arrangement outputs a second signal. The analog filter arrangement receives the second signals and perform filtering and calibration.

Receiver arrangement and method of performing operations of receiver

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Austin, TX, United States of America

Narayanan Baskaran