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Receiver circuit, differential signal receiver circuit, interface circuit, and electronic instrument

A technology of receiving circuit and differential signal, which is applied in the field of receiving circuit to achieve the effect of reducing amplitude and reducing capacity

Inactive Publication Date: 2006-11-08
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Moreover, the above-mentioned problem is not only a problem of high-speed signal transmission of differential signals, but also a problem of high-speed signal transmission of single-ended signals.

Method used

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  • Receiver circuit, differential signal receiver circuit, interface circuit, and electronic instrument
  • Receiver circuit, differential signal receiver circuit, interface circuit, and electronic instrument
  • Receiver circuit, differential signal receiver circuit, interface circuit, and electronic instrument

Examples

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Embodiment Construction

[0043] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the Examples described below do not unduly limit the contents of the present invention described in the claims. Furthermore, not all of the configurations described below are necessarily essential requirements for constituting the present invention.

[0044] The receiving circuit in this embodiment described below is applicable to a single-ended signal receiving circuit or a differential signal receiving circuit.

[0045] 1. Interface circuit for single-ended signals

[0046] 1.1 Interface circuit

[0047] figure 1 A schematic configuration of an interface circuit for single-ended signals in this embodiment is shown. In addition, in this embodiment, the host device 10 is the end that supplies the clock signal, and the target device 30 is the end that operates using the supplied clock signal as the system clock signal.

[0048] exist figure 1 A...

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Abstract

A receiver circuit (100), which is connected with a partner transmitter circuit (200) through a signal line (250) and receives a signal based on current which flows through the signal line (250), includes a current / voltage conversion circuit (120) which converts the current which flows through the signal line (250) into voltage, a power supply circuit (140) which adjusts the current which flows through the signal line based on a bias voltage (Vb) and voltage of a node (NDX) connected with the signal line, and a bias voltage generation circuit (130) which outputs the bias voltage (Vb) which is adjusted in connection with characteristics of the power supply circuit (140).

Description

technical field [0001] The invention relates to a receiving circuit, a differential signal receiving circuit, an interface circuit and electronic equipment. Background technique [0002] In recent years, high-speed serial transmission interfaces such as LVDS (Low Voltage Differential Signaling) have attracted attention as interfaces aimed at reducing EMI (Electro Magnet Interference: Electromagnetic Interference) noise and the like. In this high-speed serial transmission interface, for example, the transmitting circuit transmits serialized data through differential signals (Differential Signals), and the receiving circuit differentially amplifies the differential signals, thereby realizing data transmission. [0003] Therefore, the receiving circuit includes a differential amplifier circuit for amplifying the respective signals constituting the differential signal. Then, by amplifying the differential voltage between the voltage of each of the above-mentioned signals and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/04H04B1/00
Inventor 高向真
Owner SEIKO EPSON CORP