Datasheet
Characterization curves TDA7491LP
22/37 Doc ID 13541 Rev 5
Figure 22. FFT (0 dB)
Figure 23. FFT (-60 dB)
Frequency (Hz)
FFT (dB)
-150
+10
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
20 20k50 100 200 500 1k 2k 5k 10k
Specification Limit:
Typical: >60dB
for the harmonic
frequency
Test Condition:
Vcc =9V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f = 1kHz,
Gv =30dB,
Po =1W
Tam b =25°C
FFT (0 dB)
Frequency (Hz)
FFT (dB)
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
20 20k50 100 200 500 1k 2k 5k 10k
Specification Limit:
Typical: > 90dB
for the harmonic
frequency
Test Condition:
Vcc =9V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f =1kHz,
Gv =30dB,
Po = -60dB (@ 1W =0dB)
Tam b =25°C
FFT (-60 dB)