TDA8920TH datasheet(8/16 Pages) PHILIPS

No de pièce	TDA8920TH

Description	2 x 50 W class-D power amplifier

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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8 / 16 page

1998 Dec 01

8

Philips Semiconductors

Preliminary speciﬁcation

2

× 50 W class-D power ampliﬁer

TDA8920

AC CHARACTERISTICS

Stereo single-ended application

VDD = ±25 V; RL =8 Ω; fi = 1 kHz; Tamb =25 °C; measured in Fig.5; unless otherwise speciﬁed.

Notes

1. Total harmonic distortion is measured in a bandwidth of 22 Hz to 22 kHz, using an 11th-order low-pass filter. When

distortion is measured using a lower order low-pass filter a significantly higher value will be found, due to the

switching frequency outside the audio band.

2. Output power measured across the loudspeaker load.

3. Vripple =Vripple(max) = 2 V (p-p); fi = 100 Hz; Rs =0 Ω.

4. Vripple =Vripple(max) = 2 V (p-p); fi = 1 kHz; Rs =0 Ω.

5. B = 22 Hz to 22 kHz; Rs =0 Ω.

6. B = 22 Hz to 22 kHz; Rs =10kΩ.

7. B = 22 Hz to 22 kHz; independent of Rs.

8. Po = tbf W; Rs =0 Ω.

9. Vi =Vi(max) = 1 V (RMS).

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Po

output power

THD = 0.5%

tbf

30

−

W

THD = 10%

tbf

35

−

W

THD = 0.5%; Vp = ±30 V

−

40

−

W

THD = 10%; Vp = ±30 V

−

50

−

W

THD

total harmonic distortion

Po = 1 W; note 1

fi = 1 kHz

−

0.1

0.15

%

fi = 10 kHz

−

0.2

−

%

Gv(cl)

closed loop voltage gain

29

30

31

dB

η

efﬁciency

Po = tbf W; fi = 1 kHz; note 2

85

90

−

%

SVRR

supply voltage ripple

rejection

on; note 3

−

60

−

dB

on; note 4

tbf

−

dB

mute; note 3

−

60

−

dB

standby; note 3

−

80

−

dB

Z

i

input impedance

80

120

k

Ω

Vn(o)

noise output voltage

on; note 5

−

100

200

µV

on; note 6

−

tbf

−µV

mute; note 7

−

100

−µV

α

cs

channel separation

note 8

50

tbf

−

dB

∆G

v

channel unbalance

−−

1dB

Vo

output signal

mute; note 9

−−

500

µV

CMRR

common mode rejection ratio Vi(CM)(rms) =1V

−

65

−

dB

Numéro de pièce similaire - TDA8920TH

Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	TDA8920B	209Kb / 34P	2 X 100 W class-D power amplifier Rev. 01-1 October 2004
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