TDA8933T datasheet(39/47 Pages) NXP

39 / 47 page

TDA8933_1

Preliminary data sheet

Rev. 01 — 15 May 2007

39 of 47

NXP Semiconductors

TDA8933

Class-D audio ampliﬁer

fi = 1 kHz

(1) RL = 16 Ω BTL; THD = 10 %

(2) RL = 16 Ω BTL; THD = 0.5 %

(3) RL = 8 Ω BTL; THD = 10 %

(4) RL = 8 Ω BTL; THD = 0.5 %

fi = 1 kHz; power dissipation in junction only; short

time PO at THD+N = 10 %

(1) RL = 8 Ω BTL

(2) RL = 16 Ω BTL

Fig 34. Output power as a function of supply voltage

Fig 35. Power dissipation as a function of supply

voltage

VP (P)

010aaa208

(W)

(1)

(2)

(3)

(4)

VP (V)

010aaa210

2.0

3.0

1.0

4.0

5.0

(W)

0.0

(1)

(2)

(1) VP = 25 V

(2) VP = 31 V

2 layer application board (55 mm

× 45 mm), 35 µ

copper, FR4 base material in free air with natural

convection.

(1) VP = 17 V

a. RL = 16 Ω BTL; fi = 1 kHz

b. RL = 8 Ω BTL; fi = 1 kHz

Fig 36. Output power as a function of time

time (s)

600

480

240

360

120

010aaa209

(W)

(1)

(2)

time (s)

600

450

150

300

010aaa230

(W)

(1)

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