TDA8927TH datasheet(25/36 Pages) PHILIPS

25 / 36 page

2001 Dec 11

Philips Semiconductors

Objective speciﬁcation

Power stage 2

× 80 W class-D

audio ampliﬁer

TDA8927

handbook, halfpage

MLD609

10−2

10−1

(2)

Po (W)

(W)

102

103

(1)

(3)

Fig.19 Power dissipation as a function of output

power.

VP = ±25 V; fi = 1 kHz:

(1) 2

× 4 Ω SE.

(2) 1

× 8 Ω BTL.

(3) 2

× 8 Ω SE.

handbook, halfpage

(3)

(1)

(2)

150

100

(%)

Po (W)

120

MLD610

Fig.20 Efficiency as a function of output power.

VP = ±25 V; fi = 1 kHz:

(1) 2

× 4 Ω SE.

(2) 1

× 8 Ω BTL.

(3) 2

× 8 Ω SE.

handbook, halfpage

(3)

(4)

(1)

(2)

200

120

160

(W)

VP (V)

MLD611

Fig.21 Output power as a function of supply

voltage.

THD+N= 0.5%; fi = 1 kHz:

(1) 1

× 4 Ω BTL.

(2) 1

× 8 Ω BTL.

(3) 2

× 4 Ω SE.

(4) 2

× 8 Ω SE.

handbook, halfpage

(3)

(4)

(1)

(2)

200

120

160

(W)

VP (V)

MLD612

Fig.22 Output power as a function of supply

voltage.

THD + N = 10%; fi = 1 kHz:

(1) 1

× 4 Ω BTL.

(2) 1

× 8 Ω BTL.

(3) 2

× 4 Ω SE.

(4) 2

× 8 Ω SE.

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