IRAUDAMP4 Datasheet, PDF (22/44 Pages) International Rectifier – 120 W x 2 Channel Class D Audio Power Amplifier

Typical Performance
±B supply = ± 35 V, load impedance = 4 Ω, 1 kHz audio signal,
Self oscillator @ 400 kHz and internal volume-control set to give required output with
1 Vrms input signal, unless otherwise noted.
+4
+2
8Ω
+0
d
4Ω
B _-2
r
-4
A
-6
-8
-10
20
50 100 200
500
1k
2k
Hz
5k 10k 20k
50k
200k
Green
CH1 - 4 Ω, 2 V Output
Red
CH1 - 8 Ω, 2 V Output
Figure 18. Frequency Characteristics vs. Load Impedance
+0
-20
-40
d
-60
B
-80
-100
Int.
Self
-120
20
50
100
200
500
1k
2k
5k
Hz
Red
CH2 – CH1, 60 W, Self Oscillator @ 400 kHz
Green CH2 – CH1, 60 W, Internal Clock @ 300 kHz
Figure 19. Channel Separation vs. Frequency
10k 20k
www.irf.com
RD-0617
21