TDA7490 STMicroelectronics, TDA7490 Datasheet - Page 6

• Manufacturer Part Number: TDA7490
• Description: IC AMP AUDIO 50W D 25FLEXIWATT
• Manufacturer: STMicroelectronics
• Type: Class Dr

Specifications of TDA7490

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 50W x 1 @ 16 Ohm; 25W x 2 @ 8 Ohm
• Voltage - Supply: ±10 V ~ 25 V
• Features: Depop, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Package / Case: 25-Flexiwatt (bent and staggered leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3985-5

TDA7490
Figure 6. Distortion vs. Output Power
Figure 7. Distortion vs. Output Power
Figure 8. Crosstalk vs. Frequency
6/10
0.05
0.02
0.01
(dB)
-100
0.05
0.02
0.01
-20
-30
-40
-50
-60
-70
-80
-90
CT
0.5
0.2
0.1
0.5
0.2
0.1
THD
THD
(%)
(%)
0.001
5
2
1
5
2
1
0
0
2
2
4
4
Stereo
V
f=1KHz
Stereo
V
f=1KHz
S
S
± 16V; Rl=4Ω;
0.01
± 21V; Rl=8Ω;
6
6
V
Rl=8Ω;
0dB=1W
S
± 17V;
8
8
10
10
12
12
0.1
14
14
16
16
18
18
1
1 1 1
20
20
22
22
D99AU1102
D99AU1088
D99AU1089
24
24
f(KHz)
P
P
O
O
(W)
(W)
Figure 9. Frequency Response
Figure 10. Power Dissipation vs. Output Power
Figure 11. Distortion vs. Output Power in BTL
AMP
(dB)
THD
0.05
0.02
0.01
-10
-12
-14
7.5
6.5
5.5
4.5
3.5
2.5
1.5
0.5
(%)
0.5
0.2
0.1
-2
-4
-6
-8
2
0
5
2
1
8
7
6
5
4
3
2
1
0
0.01
0
0
Power Dissipation (W)
2
5
Vs= +/- 21 V; Rl = 8 Ohm; f= 1 KHz
4
10
V
Rl=8Ω;
0dB=1W
S
Bridge
V
Rl=8Ω;
f=1KHz
± 21V;
S
0.1
6
± 17V;
15
8
20
Output Power (W)
10 12 14 16 18 20 22 24 26
25
1
30
35
40
10
45
D99AU1082
50 P
D99AU1091
f(KHz)
O
(W)