International Rectifier IRAUDAMP4, Manual

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RD-0617
Specifications
General Test Conditions (unless otherwise noted) Notes / Conditions
Supply Voltage ±35 V
Load Impedance 4 Ω
Self-Oscillating Frequency 400 kHz No input signal
Gain Setting 26.8 dB 1 Vrms input yields rated power
Electrical Data Typical Notes / Conditions
IR Devices Used IRS20955 gate driver,
IRF6645 DirectFET MOSFET
Modulator Self-oscillating, second order sigma-delta modulation, analog input
Power Supply Range ± 25 - 35 V
Output Power CH1-2: (1% THD+N) 120 W 1 kHz
Output Power CH1-2: (10% THD+N) 170 W 1 kHz
Rated Load Impedance 4 Ω
Supply Current 100 mA No input signal
Total Idle Power Consumption 7 W No input signal
Channel Efficiency 96%
Single-channel driven,
120 W, Class D stage
Audio Performance Typical / Class D* Notes / Conditions
THD+N, 1 W
THD+N, 10 W
THD+N, 60 W 0.005%
0.002%
0.004% 0.002%
0.001%
0.003%
1 kHz, Single-channel driven
Dynamic Range 113 dB 120 dB
A-weighted, AES-17 filter,
Single-channel operation
Residual Noise, 20Hz - 20 kHz BW,
A-Weighted 70 µV
50 µV 40 µV
20 µV Self-oscillating – 400 kHz
Internal clock – 300 kHz
Damping Factor 170 2000 1 kHz, relative to 4 Ω load
Channel Separation
95 dB
80 dB 100 dB
85 dB
100 Hz
10 kHz
Frequency Response : 20Hz-20 kHz
: 20Hz-40 kHz
±1 dB
±3 dB
1W, 4 Ω - 8 Ω Load
Thermal Performance Typical Notes / Conditions
Idling
T
C
=30
°
C
T
PCB
=37 ° C
No signal input, T
A
=25
°
C
2ch x 15 W (1/8 rated power)
T
C
=54 ° C
T
PCB
=67
°
C
Continuous, T
A
=25
°
C
2ch x 120 W (rated power)
T
C
=80
°
C
T
PCB
=106 ° C
At OTP shutdown @ 150 s,
T
A
=25
°
C
Physical Specifications
Dimensions 5.8 in (L) x 5.2 in (W)
Note: Specifications are typical and not guaranteed
*
Class D refers to audio performance measurements of the Class D output power stage
only, with preamp and output filter bypassed.