System of digitally testing an analog driver circuit

Details System of digitally testing an analog driver circuit System of digitally testing an analog driver circuit

2004-03-25

2008-12-16

Nguyen, Ha (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

Reexamination Certificate

active

07466156

ABSTRACT:
A circuit of testing an analog driver circuit using digital scan-based test methodologies. The circuit of the present invention includes a control circuit for generating signals in response to a test enable signal, a differential driver circuit for receiving a differential input signal, amplifying the differential input signal and transmitting a differential output signal in response to the differential input signal and the signals generated by the control circuit, a programmable termination impedance circuit for generating a differential termination impedance at the output node of the differential driver circuit in response the signals generated by the control circuit, and a differential receiver circuit for receiving the differential output from the differential driver circuit, convert the differential output signal to a single ended signal and transmitting the single ended signal, all in response to the test enable signal.

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U.S. Appl. No. 10/604,025, “Data Transceiver and Method for Equalizing the Data Eye of a Differential Input Data Signal”, Camara, et al.

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