TDA749213TR Datasheet, PDF (13/32 Pages) STMicroelectronics – 50 W + 50 W dual BTL class-D audio amplifier

TDA7492
Characterization curves
Figure 6. THD vs. frequency
Test conditions:
Vcc = 25 V,
RL = 6 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 30 dB,
Po = 1 W,
Tamb = 25r C
0.5
0.4
0.3
0.2
THD %
0.1
0.07
0.06
0.05
0.04
0.03
Specification limit:
0.02
Typical: THD < 0.4%
0.01
20
50
100
200
500
1k
2k
Frequency (Hz)
Figure 7. Frequency response
Test conditions:
Vcc = 25 V,
RL = 6 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 30 dB,
Po = 1 W,
Tamb = 25r C
+1
+0.5
-0
dBrA
-0.5
-1
-1.5
-2
-2.5
-3
-3.5
-4
Specification limit:
-4.5
Max: +/-3 dB (20 Hz to 20 kHz)
-5
-5.5
-6
20
50
100
200
500
1k
2k
Frequency (Hz)
Figure 8. Crosstalk
Test conditions:
Vcc = 25 V,
RL = 6 Ω,
Rosc = 39 kΩ, Cosc = 100 nF,
f = 1 kHz,
Gv = 30 dB,
Po = 1 W
Tamb = 25r C
-60 _T
-65
Crosstalk ^-70
dB
-75
-80
-85
-90
-95
-100
T T T TT
-105
Specification limit:
-110
Typical: > 50 dB (at f = 1 kHz)
-115
-120
20
50
100
200
500
1k
2k
Frequency (Hz)
5k
10k 20k
5k
10k 20k
5k
10k 20k
Doc ID 14926 Rev 5
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