IRAUDAMP7D Datasheet, PDF (5/43 Pages) International Rectifier – 25W-500W Scalable Output Power Class D Audio Power Amplifier Reference Design Using the IRS2092 Protected Digital Audio Driver

Audio Performance
THD+N, 1W
THD+N, 10W
THD+N, 60W
THD+N, 100W
Dynamic Range
Residual Noise
Damping Factor
Channel Separation
Frequency Response : 20 Hz-
20kHz
Before
Demodulator
0.09 %
0.03 %
0.03 %
0.08 %
100 dB
200 μV
2000
95 dB
85 dB
75 dB
20 Hz-35kHz
Class D
Output
0.1 %
0.04 %
0.05 %
0.10 %
100 dB
200 μV
170
90 dB
80 dB
65 dB
±3 dB
Notes / Conditions
1kHz, Single-channel driven
A-weighted, AES-17 filter,
Single-channel operation
22 Hz – 20kHz, AES17 filter
Self-oscillating frequency
400kHz
1kHz, relative to 4 Ω load
100Hz
1kHz
10kHz
1W, 4 Ω – 8 Ω Load
Thermal Performance
Condition
Idling
2 ch x 15W (1/8 rated power)
2 ch x 120W (Rated power)
(T_A=25 °C)
Typical
T_C =30 °C
T_PCB=37 °C
T_C =54 °C
T_PCB=67 °C
T_C =80 °C
T_PCB=106 °C
Notes / Conditions
No signal input
OTP shutdown after 150 s
Physical Specifications
Dimensions
Weight
6”(L) x 4”(W) x 1.25”(H)
150 mm (L) x 100 mm (W) x 35 mm(H)
0.250kgm
Test Setup
www.irf.com
IRAUDAMP7D REV 2.8
Page 5 of 42