Test device and setting method

A testing apparatus, which includes an equalizer able to set an amplification amount for each frequency component and tests a device under test having therein a self-testing unit, comprising:

• a reception side equalizer for receiving and amplifying a signal output from the device under test;
• a transmission side equalizer for amplifying the signal received from the reception side equalizer and outputting the amplified signal to the device under test;
• a reception side equalizer setting unit for determining an amplification amount by which said reception side equalizer amplifies a predetermined frequency component of a reception signal received from the device under test so as to compensate for a delay amount of the reception signal and setting the reception side equalizer to be the amplification amount;
• and
• a transmission side equalizer setting unit for determining an amplification amount by which said transmission side equalizer amplifies a predetermined frequency component of a transmission signal transmitted to the device under test on the basis of the amplification amount set by said reception side equalizer setting unit and setting the transmission side equalizer to be the amplification amount.

A setting method of a testing apparatus for testing a device under test having therein a self-testing unit,

• wherein the testing apparatus comprises:
• a comparator for receiving a signal output from the device under test and converting the signal into a logic signal by comparing the signal with a first reference voltage;
• and
• a driver for amplifying the logic signal converted by the comparator on the basis of a second reference voltage and outputting the amplified logic signal to the device under test, and
• the testing method comprises:
• a comparator setting step of determining the first reference voltage so as to compensate for a delay amount of a reception signal received from the device under test and setting said comparator to be the first reference voltage;
• and
• a driver setting step of determining the second reference voltage on the basis of the reference voltage of said comparator and setting said driver to be the second reference voltage.

A setting method of a testing apparatus, which includes an equalizer able to set an amplification amount for each frequency component and tests a device under test having therein a self-testing unit,

• wherein the testing apparatus comprises:
• a reception side equalizer for receiving and amplifying a signal output from the device under test;
• and
• a transmission side equalizer for amplifying the signal received from the reception side equalizer and outputting the amplified signal to the device under test, and
• the setting method comprises:
• a reception side equalizer setting step of determining an amplification amount by which said reception side equalizer amplifies a predetermined frequency component of a reception signal received from the device under test so as to compensate for a delay amount of the reception signal and setting the reception side equalizer to be the amplification amount;
• and
• a transmission side equalizer setting step of determining an amplification amount by which said transmission side equalizer amplifies a predetermined frequency component of a transmission signal transmitted to the device under test on the basis of the amplification amount set in said reception side equalizer setting step and setting the transmission side equalizer to be the amplification amount.