Multifunctional output drivers and multifunctional...

Details Multifunctional output drivers and multifunctional... Multifunctional output drivers and multifunctional...

2011-06-21

2011-06-21

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C327S108000, C327S112000

Reexamination Certificate

active

07965121

ABSTRACT:
A multifunctional output driver capable of transmitting signals of different interfaces in different modes is provided, in which first and second current sources are provided, and first to fourth switching devices are coupled between the first and second current sources, and the first and second current source and the first to the fourth switching devices act as a current steering circuit. In a first transmission mode, the first and second switching devices are turned off, and the third and fourth switching devices and the first current source act as a current mode logic circuit to provide an output signal compatible with a first transmission interface according to an input signal from a pre-driver. In a second transmission mode, the current steering circuit outputs an output signal compatible with a second transmission interface according to the input signal from the pre-driver.

REFERENCES:
patent: 7228116 (2007-06-01), Cheng et al.
patent: 7256624 (2007-08-01), Cheng et al.
patent: 7256625 (2007-08-01), Liu et al.
patent: 7538588 (2009-05-01), Liu et al.
patent: 7597881 (2009-10-01), Gruning et al.
patent: 1959801 (2007-05-01), None
English abstract of CN1959801, pub. May 9, 2007.

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