CURRENT MODE DIFFERENTIAL SIGNAL TRANSMITTING CIRCUIT SHARING A CLOCK OUTPUTTING UNIT

Abstract

A current-mode differential signal transmitting circuit is disclosed, including a transmitter having a first transmitting module and a second transmitting module. The first transmitting module includes a plurality of first outputting units to output first data and a clock outputting signal. The second transmitting module includes a plurality of second outputting units for outputting second data, and the first and second transmitting modules share this clock outputting unit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a prior art current mode differential signal transmitting circuit.

FIG. 2 illustrates a current mode differential signal transmitting circuit according to the first embodiment of the present invention.

FIG. 3 illustrates a current mode differential signal transmitting circuit according to the second embodiment of the present invention.

Claims

1. A current-mode differential signal transmitting circuit, comprising: a transmitter, comprising: a first transmitting module, including a plurality of first outputting units to output first data and a clock outputting unit; anda second transmitting module, including a plurality of second outputting units for outputting second data, wherein the first and second transmitting modules share the clock outputting unit.

2. The current-mode differential signal transmitting circuit of claim 1, wherein the clock outputting unit outputs a data transmitting clock signal, and the data transmitting clock signal corresponds to the first data outputted from the first outputting units and the second data outputted from the second outputting units.

3. The current-mode differential signal transmitting circuit of claim 1, wherein the current-mode differential signal transmitting circuit is a low voltage differential signaling (LVDS) transmitting circuit.

4. The current-mode differential signal transmitting circuit of claim 1, wherein the current-mode differential signal transmitting circuit is a reduced swing differential signal transmitting circuit (RSDS).

5. The current-mode differential signal transmitting circuit of claim 1, wherein the first and second transmitting modules transmit the pixel data of odd pixels and even pixels respectively.

6. The current-mode differential signal transmitting circuit of claim 1, comprising: a receiver, the receiver comprising: a first receiving module, comprising: a plurality of first receiving units, coupled to the first outputting units respectively for receiving the first data;a first clock receiving unit, coupled to the clock outputting unit to receive a first data receiving clock signal corresponding to the data transmitting clock signal;a second receiving module, comprising: a plurality of second receiving units, coupled to the second outputting units respectively for receiving the second data;a second clock receiving unit, coupled to the clock outputting unit for receiving a second data receiving clock signal corresponding to the data transmitting clock signal.

7. The current-mode differential signal transmitting circuit of claim 1, further comprising: a first connecting line, coupled to a positive terminal of the clock outputting unit and a positive terminal of the first clock receiving unit;a second connecting line, coupled to a negative terminal of the clock outputting unit and a negative terminal of the first clock receiving unit;a third connecting line, coupled to a positive terminal of the clock outputting unit and a positive terminal of the second clock receiving unit; anda fourth connecting line, coupled to a negative terminal of the clock outputting unit and a negative terminal of the second clock receiving unit.

8. The current-mode differential signal transmitting circuit of claim 6, wherein the currents of the first, the second, the third, and the fourth connecting lines are adjustable.

9. The current-mode differential signal transmitting circuit of claim 1, further comprising: a first connecting line, coupled to a positive terminal of clock outputting unit and a positive terminal of the first clock receiving unit;a second connecting line, coupled to a negative terminal of the clock outputting unit and a negative terminal of the first clock receiving unit;a third connecting line, coupled to a positive terminal of the clock outputting unit and a negative terminal of the second clock receiving unit; anda fourth connecting line, coupled to a negative terminal of the clock outputting unit and a positive terminal of the second clock receiving unit.

10. The current-mode differential signal transmitting circuit of claim 1, further comprising: a third transmitting module having a plurality third outputting units for outputting third data.

11. The current-mode differential signal transmitting circuit of claim 1, wherein the currents of the current-mode differential signal transmitting circuit are adjustable.

12. A current-mode differential signal transmitting circuit, comprising: a transmitter, including: a first transmitting module, including a plurality of first outputting units for outputting first data;a second transmitting module, including a plurality of second outputting units for outputting second data; anda clock outputting unit, wherein the first transmitting module and the second transmitting module share the clock outputting unit.

13. The current-mode differential signal transmitting circuit of claim 12, wherein the clock outputting unit outputs a data transmitting clock signal, and the data transmitting clock signal corresponds to the first data outputted from the first outputting units and the second data outputted from the second outputting units.

14. The current-mode differential signal transmitting circuit of claim 12, further comprising: a third transmitting module including a plurality third outputting units for outputting third data.

15. The current-mode differential signal transmitting circuit of claim 14, wherein the first, the second, and the third transmitting module share the clock outputting unit.

16. The current-mode differential signal transmitting circuit of claim 12, wherein the currents of the current-mode differential signal transmitting circuit are adjustable.

17. The current-mode differential signal transmitting circuit of claim 12, wherein the current-mode differential signal transmitting circuit is a low voltage differential signaling (LVDS) transmitting circuit.

18. The current-mode differential signal transmitting circuit of claim 12, wherein the current-mode differential signal transmitting circuit is a reduced swing differential signal transmitting circuit (RSDS).

19. The current-mode differential signal transmitting circuit of claim 12, wherein the first and the second transmitting modules transmit the pixel data of the odd pixels and the even pixels, respectively.

20. The current-mode differential signal transmitting circuit of claim 11, comprising: a receiver, coupled to the transmitter, the receiver including: a first receiving module, including: a plurality of first receiving units, coupled to the first outputting units respectively for receiving the first data;a first clock receiving unit, coupled to the clock outputting unit for receiving a first data receiving clock signal corresponding to the data transmitting clock signal;a second receiving module, including: a plurality of second receiving units, coupled to the second outputting units respectively for receiving the second data;a second clock receiving unit, coupled to the clock outputting unit for receiving a second data receiving clock signal corresponding to the data transmitting clock signal.