TS4990EKIJT STMICROELECTRONICS [STMicroelectronics], TS4990EKIJT Datasheet - Page 16

• Manufacturer Part Number: TS4990EKIJT
• Description: 1.2 W audio power amplifier with active low standby mode
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
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Figure 50. THD + N vs. output power
Figure 52. SNR vs. power supply with
Figure 54. THD + N vs. frequency
0.01
0.01
0.1
110
105
100
0.1
10
95
90
85
80
1E-3
1
20
RL = 16 Ω
F = 20kHz
Av = 2
Cb = 1 μ F
BW < 125kHz
Tamb = 25 ° C
RL=16 Ω
Av=2
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
Av = 2
Cb = 1 μ F
THD+N < 0.7%
Tamb = 25 ° C
2.5
unweighted filter (20Hz to 20kHz)
Vcc=2.2V, Po=100mW
100
3.0
Power Supply Voltage (V)
0.01
Output Power (W)
Vcc=5V, Po=0.55W
Frequency (Hz)
RL=16 Ω
RL=4 Ω
Vcc=2.6V
3.5
Vcc=2.2V
1000
Vcc=3.3V
4.0
0.1
RL=8 Ω
Vcc=5V
4.5
10000
20k
1
5.0
Figure 51. THD + N vs. frequency
Figure 53. THD + N vs. frequency
Figure 55. SNR vs. power supply with
0.01
0.1
0.1
95
90
85
80
75
70
1
20
20
RL=4 Ω
Av=2
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
Av = 10
Cb = 1 μ F
THD+N < 0.7%
Tamb = 25 ° C
RL=8 Ω
Av=2
Cb = 1 μ F
Bw < 125kHz
Tamb = 25 ° C
2.5
unweighted filter (20Hz to 20kHz)
100
100
3.0
Vcc=2.2V, Po=150mW
Power Supply Voltage (V)
Vcc=2.2V, Po=130mW
Vcc=5V, Po=1W
Frequency (Hz)
Frequency (Hz)
Vcc=5V, Po=1.3W
RL=16 Ω
RL=4 Ω
3.5
1000
1000
4.0
RL=8 Ω
4.5
10000
10000
TS4990
20k
5.0
20k