TA0104A Ver la hoja de datos (PDF) - Tripath Technology Inc.

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TA0104A

STEREO 500W (4Ω) CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING DIGITAL POWER PROCESSING (DPPTM) TECHNOLOGY

Tripath Technology Inc. 

Tripath Technology, Inc. - Technical Information

Typical Performance at Vs = +75V

10

20Hz - 22kHz BW

5 f = 1kHz

BBM = 25nS

2

VS = +/-75V

Av = 14

ST STW38NB20 MOSFET

1

0.5

THD+N vs Output Power

0.2

0.1

0.05

0.02

0.01

0.005

0.002

0.001

1

2

5

10

20

50

Output Power (W)

RL = 8Ω

100

200

RL = 4Ω

500

Frequency Response

+2

+1.5

+1

+0.5

20Hz - 22kHz BW

BBM = 25nS

Pout = 10W

Vs = +/-75V

RL = 8Ω

Av = 14

ST STW38NB20 MOSFET

+0

-0.5

-1

-1.5

-2

10 20

50 100

200

500

1k

2k

Frequency (Hz)

5k

10k 20k

100

90

80

70

60

50

40

30

20

10

0

0

Efficiency versus Output Power

RL = 8Ω

RL = 4Ω

22Hz - 22kHz BW

f = 1kHz

BBM = 25nS

VS = +/-75V

Av = 14

ST STW38NB20 MOSFET

100 200 300 400 500 600 700

Output Power (W)

Intermodulation Performance

RL = 8Ω

+10

+0 10Hz - 80kHz BW

19kHz, 20kHz, 1:1

-10 BBM = 25nS

Pout = 100W/Channel

-20 VS = +/-75V

0dBr = 28Vrms

-30 Av = 14

ST STW38NB20 MOSFET

-40

-50

-60

-70

-80

-90

-100

60 100

200

500

1k

2k

5k

Frequency (Hz)

10k

20k 30k

Channel Separation versus Frequency

RL = 8Ω

+0

20Hz - 22kHz BW

-10 BBM = 25nS

Pout = 100W/Channel

-20

VS = +/-75V

Av = 14

-30

ST STW38NB20 MOSFET

-40

-50

-60

-70

-80

-90

-100

20

50

100

200

500

1k

2k

Frequency (Hz)

+0 20Hz - 22kHz BW

BBM = 145nS

-10 Pout = 0W

-20

VS = +/-75V

RL = 8Ω

-30

Av = 14

ST STW38NB20 MOSFET

-40

A-Weighted Noise FFT

-50

-60

-70

-80

-90

-100

-110

-120

-130

-140

5k

10k 20k

20

50

100

200

500

1k

2k

Frequency (Hz)

5k

10k

20k

6

TA104A – Rev. 3.1/06.00

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