TS4871IST View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TS4871IST

OUTPUT RAIL TO RAIL 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE

STMicroelectronics 

TS4871

Fig. 75 : Current Consumption vs Standby

Voltage @ Vcc = 2.6V

6

Vcc = 2.6V

Tamb = 25°C

5

4

3

2

1

0

0.0

0.5

1.0

1.5

2.0

2.5

Vstandby (V)

Fig. 76 : Current Consumption vs Standby

Voltage @ Vcc = 3.3V

6

Vcc = 3.3V

Tamb = 25°C

5

4

3

2

1

0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Vstandby (V)

Fig. 77 : Clipping Voltage vs Power Supply

Voltage and Load Resistor

1.0

0.9 Tamb = 25°C

0.8

0.7

0.6

0.5

RL = 8Ω

RL = 4Ω

0.4

0.3

0.2

0.1

0.0

2.5

RL = 16Ω

3.0

3.5

4.0

4.5

5.0

Power supply Voltage (V)

Fig. 78 : Clipping Voltage vs Power Supply

Voltage and Load Resistor

1.0

0.9 Tamb = 25°C

0.8

0.7

0.6

RL = 4Ω

0.5

RL = 8Ω

0.4

0.3

0.2

0.1

0.0

2.5

RL = 16Ω

3.0

3.5

4.0

4.5

5.0

Power supply Voltage (V)

Fig. 79 : Vout1+Vout2 Unweighted Noise Floor Fig. 80 : Vout1+Vout2 A-weighted Noise Floor

120

Vcc = 2.5V to 5V, Tamb = 25 C

100 Cb = Cin = 1 F

Input Grounded

BW = 20Hz to 20kHz (Unweighted)

80

60

40

Standby mode

20

0

20

100

1000

Frequency (Hz)

Av = 10

Av = 2

10000

120

Vcc = 2.5V to 5V, Tamb = 25 C

100 Cb = Cin = 1 F

Input Grounded

BW = 20Hz to 20kHz (A-Weighted)

80

60

Av = 10

40

Standby mode

20

Av = 2

0

20

100

1000

Frequency (Hz)

10000

18/28

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