Texas Instruments SLOU106 manual Testing the EVM Setup, ±3. Driver 1 Output Signal

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2.4Testing the EVM Setup

1)Turn on the dc power supply.

2)Verify that both the +5 V (current meter 1) and the ±5 V (current meter 2) currents are below 20 mA.

Caution:

Currents above 20 mA indicate a possible short or a wrong resistor value on the PCB. Do not proceed until this situation is corrected.

3)Turn on the function generator.

4)Verify the oscilloscope is showing two 1 MHz sine waves with amplitude of ±0.125 V. The dc offset of the signal must be below 50 mV.

Note: VOUT+ and VOUT± should be 180 degrees out of phase. The internal attenuation of the scope should be set to 6 dB for a gain of one. Otherwise,

the output will show a gain of one-halfdue to the voltage division occurring at the 50-Ωtermination resistor.

Use Figure 3 as a reference for the input and output signals.

Figure 2±3. Driver 1 Output Signal

THS4140

2-4	Using the THS4140 EVM

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Contents Users Guide Important Notice Preface Trademarks Contents Figures Introduction and Description Evaluation Module Features DescriptionTHS4140 EVM Specifications Schematic of the Populated Circuit Default ConfigurationTHS4140 EVM Schematic ±2. SchematicAdditional Sample Schematics ±5. Vicr Level Shifter THS4140 EVM Layout ±7. Top Layer Silkscreen±9. Internal Plane Layer 2 Ground Plane ±11. Bottom Layer 4 Ground and Signal Introduction and Description Using the THS4140 EVM Power Supply Setup Required EquipmentInput and Output Setup ±2. Signal ConnectionsTesting the EVM Setup ±3. Driver 1 Output SignalPower Down Verification Measuring the Frequency ResponseButterworth Filter Butterworth FilterTHS4140 EVM Bill of Materials ±1. THS4140 EVM Bill of MaterialsP374CTR-ND General High-Speed Amplifier Design Considerations General High-Speed Amplifier Design Considerations

SLOU106 specifications

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