TAS2553_15 datasheet(44/58 Pages) TI

部件名	TAS2553

功能描述	TAS2553 2.8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense

PDF	58 Pages

Scroll/Zoom	100%

制造商	TI [Texas Instruments]

网页	http://www.ti.com

标志

44 / 58 page

-0.1

-0.08

-0.06

-0.04

-0.02

0.02

0.04

-1.0

0.0

1.0

2.0

3.0

4.0

5.0

-0.001

0.001

0.003

0.005

0.007

0.009

Time - s

I2C to Enable Class-D

Class-D Output

C019

-0.1

-0.08

-0.06

-0.04

-0.02

0.02

0.04

0.06

-1.0

0.0

1.0

2.0

3.0

4.0

5.0

-0.0015

-0.0005

0.0005

0.0015

Time - s

ENABLE

Class-D Output

C020

0.01

0.1

100

0.0001

0.001

0.01

0.1

O - Output Power - W

VBAT = 3.0 V

VBAT = 3.6 V

VBAT = 4.2 V

VBAT = 5.0 V

VBAT = 5.5 V

C004

0.01

0.1

200

2000

20000

f - Frequency - Hz

VBAT = 5.5 V

VBAT = 5.0 V

VBAT = 4.2 V

VBAT = 3.6 V

VBAT = 3.0 V

C005

TAS2553

SLAS978B – SEPTEMBER 2013 – REVISED FEBRUARY 2014

www.ti.com

8.2.1.3 Application Performance Plots

AGC=OFF, Gain = 15 dB

AGC=OFF, Gain = 15 dB, Pout = 1W

Figure 52. THD+N vs Output Power (8

Ω) for Digital Input

Figure 53. THD+N vs Frequency (8

Ω) for Digital Input

Class D output and EN pulled low

Figure 54. Startup Timing

Figure 55. Shutdown Timing

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