TS4890 ST Microelectronics, Inc., TS4890 Datasheet - Page 22

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

TS4890
Fig. 97 : Current Consumption vs Standby
Voltage @ Vcc = 2.6V
Fig. 99 : Clipping Voltage vs Power Supply
Voltage and Load Resistor
Fig. 101 : Vout1+Vout2 Unweighted Noise Floor
22/32
120
100
80
60
40
20
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
6
5
4
3
2
1
0
20
0.0
2.2
Tamb = 25 C
Vcc = 2.2V to 5V, Tamb = 25 C
Cb = Cin = 1 F
Input Grounded
BW = 20Hz to 20kHz (Unweighted)
2.5
Standby mode
0.5
100
3.0
Power supply Voltage (V)
1.0
Frequency (Hz)
Vstandby (V)
3.5
RL = 8
1000
1.5
4.0
RL = 4
Vcc = 2.6V
Tamb = 25 C
2.0
RL = 16
4.5
Av = 2
Av = 10
10000
2.5
5.0
Fig. 98 : Current Consumption vs Standby
Voltage @ Vcc = 2.2V
Fig. 100 :Clipping Voltage vs Power Supply
Voltage and Load Resistor
Fig. 102 : Vout1+Vout2 A-weighted Noise Floor
120
100
80
60
40
20
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
5
4
3
2
1
0
20
0.0
2.2
Vcc = 2.2V to 5V, Tamb = 25 C
Cb = Cin = 1 F
Input Grounded
BW = 20Hz to 20kHz (A-Weighted)
Tamb = 25 C
2.5
Standby mode
100
0.5
3.0
Power supply Voltage (V)
Frequency (Hz)
Vstandby (V)
1.0
3.5
1000
RL = 8
4.0
1.5
RL = 4
Vcc = 2.2V
Tamb = 25 C
RL = 16
Av = 10
Av = 2
4.5
10000
2.0
5.0