LM4923_14 datasheet(9/23 Pages) TI1

No de pièce	LM4923

Description	1.1 Watt Fully Differential Audio Power Amplifier With Shutdown Select

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Fabricant	TI1 [Texas Instruments]

Site Internet	http://www.ti.com

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20

100

1k

10k 20k

100n

1P

10P

100P

FREQUENCY (Hz)

Vo1 + Vo2

Shutdown On

1.5

2

2.5

3

3.5

4

4.5

5

5.5

6

0

0.1

0.2

0.3

0.5

0.6

0.7

0.8

SUPPLY VOLTAGE (V)

0.4

RL = 4: Top

RL = 4: Bottom

RL = 8: Top

RL = 8: Bottom

20

100

1k

10k 20k

100n

1P

10P

100P

FREQUENCY (Hz)

Vo1 + Vo2

Shutdown On

0

20

40

60

80

100 120 140 160

AMBIENT TEMPERATURE (

oC)

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0

0.4

0.8

1.2

1.4

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

OUTPUT POWER (W)

0.2

0.6

1

0

0.2

0.4

0.5

0

0.05

0.1

0.15

0.2

0.25

OUTPUT POWER (W)

0.1

0.3

LM4923, LM4923LQBD

www.ti.com

SNAS211D – JULY 2004 – REVISED FEBRUARY 2009

Typical Performance Characteristics (continued)

Power Dissipation

vs

Output Power

VDD = 5V, RL = 8Ω

VDD = 3V, RL = 8Ω

Figure 22.

Figure 23.

Noise Floor

Power Derating Curve

VDD = 5V

Figure 24.

Figure 25.

Clipping Voltage

Noise Floor

vs

VDD = 3V

Supply Voltage

Figure 26.

Figure 27.

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Product Folder Links: LM4923 LM4923LQBD

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