TDA7491P Datasheet, PDF (18/42 Pages) STMicroelectronics – 2 x 10-watt dual BTL class-D audio amplifier

Characterization curves
Figure 16. Attenuation vs. voltage on pin STBY
TDA7491P
Test Condition:
Vcc =10V,
RL= 4 ohm,
Rosc = 39kΩ, Cosc = 100nF,
0dB@f=1kHz,Po=1w,
Gv=30dB,
Tamb=25℃
0
-20
Vcc=10V
-40
Rload=4ohm
Gain=30dB
-60
0dB@f=1kHz, Po=1w
-80
-100
-120
0
0.5
1
1.5
2
2.5
Standby voltage (V)
3
3.5
4.2
With 6-Ω load at V_CC = 11 V
Figure 17. Output power vs. supply voltage
Test Condition :
Vcc = 5~11V,
RL = 6 ohm,
Rosc = 39kO, Cosc = 100nF,
f =1kHz,
Gv = 30dB,
Tamb = 25℃
Specification Limit:
Typical:
Vs =11V,Rl =6 ohm
Po =10W @THD=10%
Po =8W @THD=1%
12
11
10
9
THD =10%
8
7
6
Rl =6 ohm
5
f =1kHz
4
THD =1%
3
2
1
0
5
6
7
8
9
10
11
Supply Voltage (V)
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Doc ID 13540 Rev 6