Mediatek Corporation

An-Siou Li

Shang-Pin Chen

Chen-Feng Chiang

Bo-Jyun Kuo

A termination circuit, a receiver and associated terminating method are provided. The termination circuit is applied to a receiving terminal for receiving a channel transmission signal. Being coupled to a control module, the termination circuit includes an upper circuit and a lower circuit. The upper circuit selectively conducts the receiving terminal to a first voltage terminal, and the lower circuit selectively conducts the receiving terminal to a second voltage terminal. The control module detects a voltage level of the receiving terminal in response to a trigger signal, and accordingly controls the first switching signal and the second switching signal for a termination duration. The termination duration is corresponding to an n-th data bit carried by the channel transmission signal.

Termination circuit, receiver and associated terminating method capable of suppressing crosstalk

An I/O driving circuit comprising a post driver. The post driver comprises: a first switch device, comprising a first terminal coupled to an I/O voltage, and comprising a second terminal, wherein the first switch device provides an initial driving voltage at the second terminal of the first switch device; and a first voltage providing device, comprising a first terminal coupled to the second terminal of the first switch device, and comprising a second terminal. The first voltage providing device is configured to provide a driving voltage at the second terminal of the first voltage providing device via providing a voltage drop to the initial driving voltage.

I/O driving circuit and control signal generating circuit

An apparatus for performing signal driving in an electronic device may include a decoupling capacitor and at least one switching unit (e.g. one or more switching units). The decoupling capacitor may have a first terminal and a second terminal, and may be positioned in an output stage within the electronic device and coupled between a first predetermined voltage level and another predetermined voltage level, where the apparatus may perform signal driving with aid of the output stage. In addition, the aforementioned at least one switching unit may be coupled between one terminal of the first and the second terminals of the decoupling capacitor and at least one of the first predetermined voltage level and the other predetermined voltage level, and may be arranged for selectively disabling the decoupling capacitor.

Apparatus for performing signal driving in an electronic device with aid of different types of decoupling capacitors for pre-driver and post-driver

An input buffer circuit comprising: a first current source; a first differential control circuit, configured to generate a first bias voltage at the first couple terminal according to the input signals, and configured to generate first control signals according to the input signals; a second current source; a second differential control circuit, configured to generate a second bias voltage at the second couple terminal according to the input signals, and configured to generate second control signals according to the input signals; a third current source, configured to provide a first current according to the second bias voltage; a first differential output circuit, configured to receive the first control signals to generate output signals; a fourth current source, configured to drain a second current according to the first bias voltage; and a second differential output circuit, configured to receive the second control signals to generate the output signal.

Input buffer circuit

A method for performing signal driving control in an electronic device and an associated apparatus are provided. The method includes: generating a first driving control signal and a second driving control signal according to a data signal, wherein the second driving control signal transits in response to a transition of the data signal, and the first driving control signal includes a pulse corresponding to the transition of the data signal; and utilizing a first switching unit to control a first signal path between a first voltage level and an output terminal of an output stage according to the first driving control signal, and utilizing a second switching unit to control a second signal path between the first voltage level and the output terminal according to the second driving control signal, wherein a first impedance of the first signal path is less than a second impedance of the second signal path.

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Taipei, Taiwan

An-Siou Li