EK27
8
EK27U Rev I
TEST ASSEMBLY
Equipment needed:
1. Power supply
2. Function Generator
3. Oscilloscope
4. Proper heat sinking system (if operating at high current)
TEST SETUP
Connect the power supply to the terminal strip. Connect the BNC cable from the function generator to
the BNC connector marked VIN, mounted on the board. Connect the load to the terminals on the terminal
strip. Refer to the amplifier datasheet for typical values of input voltage, frequency and supply voltage. Input
and output waveforms can be checked on an Oscilloscope by connecting it to the test points mounted on the
board. Begin the test with minimum values of input and supply voltage
NOTE:
After everything is connected, switch on the power to the board, and check the socket at each pin
without the DUT, for correct voltage / signal at respective pin. Once this is done, plug in the DUT and check
for the correct signal.
TEST RESULTS
Figure 6 shows input (yellow waveform) and output (blue waveform) waveforms for a PA52 power
amplifier connected to a resistive load. The part was tested for an input voltage of 500mV
p-p
, at 10 kHz fre
-
quency. The supply voltage is set at ±20 Volts.
Figure 6: Test Results
