TS4974_07 STMICROELECTRONICS [STMicroelectronics], TS4974_07 Datasheet - Page 12

• Manufacturer Part Number: TS4974_07
• Description: 1W differential audio power amplifier with up/down digital volume control pins
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
12/25
Figure 20. CMRR vs. frequency
Figure 22. CMRR vs. frequency
Figure 24. SNR vs. supply voltage
110
108
106
104
102
100
98
96
94
92
90
-10
-20
-30
-40
-50
-60
-70
-80
-10
-20
-30
-40
-50
-60
-70
-80
2.5
0
0
A - weighted filter
F = 1kHz
G = +12dB
THD + N < 0.5%
Tamb = 25
Vcc = 5V
RL
Tamb = 25°C
Vcc = 2.6V
RL
Tamb = 25°C
≥
≥
8
8
3.0
Ω
Ω
G=12dB
Cb=1, 0.47, 0.1
G=12dB
Cb=1, 0.47, 0.1
RL=16
°
100
100
C
3.5
Ω
Frequency (Hz)
Frequency (Hz)
Vcc (V)
μ
μ
F
F
4.0
1000
1000
RL=8
G=0dB
Cb=1, 0.47, 0.1
4.5
G=0dB
Cb=1, 0.47, 0.1
Ω
5.0
10000
10000
μ
F
μ
F
5.5
Figure 21. CMRR vs. frequency
Figure 23. SNR vs. supply voltage
Figure 25. SNR vs. supply voltage
110
108
106
104
102
100
110
108
106
104
102
100
-10
-20
-30
-40
-50
-60
-70
-80
98
96
94
92
90
98
96
94
92
90
2.5
2.5
0
A - weighted filter
F = 1kHz
G = 0dB
THD + N < 0.5%
Tamb = 25
Vcc = 3.3V
RL
Tamb = 25°C
≥
8
3.0
3.0
Ω
RL=16
G=12dB
Cb=1, 0.47, 0.1
°
100
C
RL=8
Ω
3.5
3.5
Ω
Frequency (Hz)
Unweighted filter (20Hz to 20kHz)
F = 1kHz
G = 0dB
THD + N < 0.5%
Tamb = 25
Vcc (V)
Vcc (V)
μ
F
4.0
4.0
RL=16
1000
RL=8
°
C
G=0dB
Cb=1, 0.47, 0.1
4.5
Ω
4.5
Ω
5.0
5.0
10000
TS4974
μ
F
5.5
5.5