TS4890 ST Microelectronics, Inc., TS4890 Datasheet - Page 20

• Manufacturer Part Number: TS4890
• Description: 1W Mono Audio Amplifier With Standby Active High
• Manufacturer: ST Microelectronics, Inc.

TS4890
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Fig. 85 : THD + N vs Frequency
Fig. 87 : THD + N vs Frequency
Fig. 89 : Signal to Noise Ratio vs Power Supply
with Unweighted Filter (20Hz to 20kHz)
100
0.01
0.01
90
80
70
60
50
0.1
0.1
2.2
1
1
20
20
RL = 16 , Vcc = 2.6V
Gv = 10, Cb = 1 F
BW < 125kHz
Tamb = 25 C
2.5
Pout = 50 & 100mW
RL=16
100
100
3.0
Frequency (Hz)
Frequency (Hz)
RL=8
3.5
Vcc (V)
1000
1000
Pout = 160mW
Pout = 80mW
RL = 16 , Vcc = 2.2V
Gv = 2, Cb = 1 F
BW < 125kHz
Tamb = 25 C
4.0
RL=4
Gv = 2
Cb = Cin = 1 F
THD+N < 0.4%
Tamb = 25 C
4.5
10000
10000
5.0
Fig. 86 : THD + N vs Frequency
Fig. 88 : THD + N vs Frequency
Fig. 90 :Signal to Noise Ratio Vs Power Supply
with Unweighted Filter (20Hz to 20kHz)
0.01
0.01
90
80
70
60
50
0.1
0.1
2.2
1
1
20
20
2.5
RL = 16 , Vcc = 2.2V
Gv = 10, Cb = 1 F
BW < 125kHz
Tamb = 25 C
Pout = 100mW
RL=16
Pout = 160mW
Pout = 80mW
100
100
3.0
Pout = 50mW
Frequency (Hz)
Frequency (Hz)
3.5
Vcc (V)
RL=4
1000
1000
RL = 16 , Vcc = 2.6V
Gv = 2, Cb = 1 F
BW < 125kHz
Tamb = 25 C
4.0
RL=8
Gv = 10
Cb = Cin = 1 F
THD+N < 0.4%
Tamb = 25 C
4.5
10000
10000
5.0