Datasheet

Characterization curves TDA7491HV
26/41 Doc ID 14242 Rev 6
Figure 41. Power supply rejection ratio vs. frequency
Figure 42. Power dissipation and efficiency vs. output power
Figure 43. Closed-loop gain vs. frequency
8ohm 18v PSRR.at27
-100
+0
-90
-80
-70
-60
-50
-40
-30
-20
-10
d
B
r
A
20 20k50 100 200 500 1k 2k 5k 10k
Hz
Test Condition:
Vcc =18V,
RL= 8 ohm,
Rosc =39k˖, Cosc =100nF,
Vin=0,
Gv =30dB,
Tamb =25ഒ
0dB refers to 500mV, 100Hz
Ripple frequency=100Hz
Ripple voltage=500mV
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









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:
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(I I L FL HQF\  
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3RZHU  GL VVL SDW L RQ  :
Test Condition:
Vcc =18V,
RL= 8 ohm,
Rosc =39k˖, Cosc =100nF,
f=1kHz,
Gv =30dB,
Tamb =25ഒ
Vcc=18V
Rload=8ohm
Gain=30dB
f=1kHz
-5
+2
-4.5
-4
-3.5
-3
-2.5
-2
-1.5
-1
-0.5
-0
+0.5
+1
+1.5
d
B
r
A
20 30k50 100 200 500 1k 2k 5k 10k 20k
Hz
Gain=32dB
Gain=22dB
Gain=30dB
Gain=26dB
Test Condition:
Vcc =18V,
RL= 8 ohm,
Rosc =39k˖, Cosc =100nF,
0dB@f=1kHz,Po=1w,
Gain=32dB,
Tamb =25ഒ