TS4994EIKJT STMICROELECTRONICS [STMicroelectronics], TS4994EIKJT Datasheet - Page 10

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TS4994EIKJT

Manufacturer Part Number
TS4994EIKJT
Description
1.2 W differential input/output audio power amplifier with selectable standby
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
Electrical characteristics
10/35
Figure 14. Power derating curves
Figure 16. Open loop gain vs. frequency
Figure 18. Closed loop gain vs. frequency
-20
-40
-10
-20
-30
-40
60
40
20
10
0
0
0.1
0.1
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Vcc = 5V
Av = 1
ZL = 8 Ω + 500pF
Tamb = 25 ° C
Vcc = 3.3V
ZL = 8 Ω + 500pF
Tamb = 25 ° C
0
Gain
No Heat sink
1
1
25
Phase
Ambiant Temperature ( C)
Frequency (kHz)
Frequency (kHz)
10
10
Gain
50
Heat sink surface ≈ 100mm
(See demoboard)
100
100
75
Phase
1000
1000
100
10000
10000
2
0
-40
-80
-120
-160
-200
0
-40
-80
-120
-160
-200
125
Figure 15. Open loop gain vs. frequency
Figure 17. Open loop gain vs. frequency
Figure 19. Closed loop gain vs. frequency
-20
-40
-20
-40
-10
-20
-30
-40
60
40
20
60
40
20
10
0
0
0
0.1
0.1
0.1
Vcc = 5V
ZL = 8 Ω + 500pF
Tamb = 25 ° C
Vcc = 2.6V
ZL = 8 Ω + 500pF
Tamb = 25 ° C
Vcc = 3.3V
Av = 1
ZL = 8 Ω + 500pF
Tamb = 25 ° C
Gain
1
1
1
Phase
Phase
Frequency (kHz)
Frequency (kHz)
Frequency (kHz)
10
10
10
Gain
Gain
100
100
100
Phase
1000
1000
1000
TS4994FC
10000
10000
10000
0
-40
-80
-120
-160
-200
0
-40
-80
-120
-160
-200
0
-40
-80
-120
-160
-200

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