IRAUDAMP15 International Rectifier, IRAUDAMP15 Datasheet - Page 5

• Manufacturer Part Number: IRAUDAMP15
• Description: Amplifier IC Development Tools Two Channel 35W IR4311 40 Ohm BRD
• Manufacturer: International Rectifier
• Type: Power Amplifiersr

Specifications of IRAUDAMP15

• Rohs: yes
• Product: Demonstration Boards
• Tool Is For Evaluation Of: IR4311
• Operating Supply Voltage: 18 V to 31 V
• Operating Supply Current: 90 mA
• For Use With: IR4311

Test Procedures
Test Setup:
Functionality Audio Tests:
Performance and Test Graphs
Power vs THD+N (without heatsink)
Test Conditions:
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1. Connect 4, 100W load to both output connectors, P1 and P3 and audio analyzer (Ap).
2. Connect Audio Signal Generator to CN1 for CH1 and CH2 respectively (Ap).
3. Connect a single power supply to P2 pre-adjusted to 18-31V as shown on Figure above
4. Turn on the power supply.
5. Turn on SW1 (right side).
6. Blue LED (Normal) stays turning on after RED LED extinguished.
7. With an Oscilloscope, monitor switching waveform at VS of CH1 and CH2.
8. Quiescent current for the power supply should be 70mA 10mA at 31V.
9. Sweep the audio signal voltage from 15 mV
10. Monitor the output signals at P1/P3 with an oscilloscope. The waveform must be a non
distorted sinusoidal signal with input sinusoidal signal below 1Vrms.
VBus = 31V
Input Signal=1 kHz
Load Impedance = 4 ohms
0.005
0.002
0.001
0.05
0.02
0.01
0.5
0.2
0.1
10
20m
5
2
1
Sweep
1
1
50m
Trace
1
3
Color
Red
Blue
100m
Line Style
Solid
Solid
200m
IRAUDAMP15 REV
Thick
2
2
500m
THD+N vs Power
Fig 2
RMS
Data
Anlr.THD+N Ratio
Anlr.THD+N Ratio
W
1
to 1.5 V
1.0
2
RMS
.
Axis
Left
Left
5
Comment
Ch1 4ohms 31V
Ch2 4ohms 31V
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