TDA8922BTH datasheet(21/32 Pages) PHILIPS

21 / 32 page

9397 750 13357

Preliminary data sheet

Rev. 01 — 1 October 2004

21 of 32

Philips Semiconductors

TDA8922B

× 50 W class-D power ampliﬁer

13.9 Curves measured in reference design

VP = ±26 V; 2 × 6 Ω SE conﬁguration.

(1) f = 6 kHz.

(2) f = 1 kHz.

(3) f = 100 Hz.

VP = ±26 V; 2 × 8 Ω SE conﬁguration.

(1) f = 6 kHz.

(2) f = 1 kHz.

(3) f = 100 Hz.

Fig 10. (THD + N)/S as a function of output power; SE

conﬁguration with 2

× 6 Ω load.

Fig 11. (THD + N)/S as a function of output power; SE

conﬁguration with 2

× 8 Ω load.

VP = ±21 V; 1 × 8 Ω BTL conﬁguration.

(1) f = 6 kHz.

(2) f = 1 kHz.

(3) f = 100 Hz.

VP = ±26 V; 2 × 6 Ω SE conﬁguration.

(1) Po =10W.

(2) Po =1W.

Fig 12. (THD + N)/S as a function of output power; BTL

conﬁguration with 8

Ω load.

Fig 13. (THD + N)/S as function of frequency, SE

conﬁguration with 2

× 6 Ω load.

Po (W)

10−2

103

102

10−1

001aab199

(2)

(3)

(1)

10−1

10−2

102

(THD

+ N)/S

(%)

10−3

001aab200

10−1

10−2

102

10−3

Po (W)

102

10−1

10−2

(2)

(3)

(1)

(THD

+ N)/S

(%)

Po (W)

10−2

103

102

10−1

001aab201

10−1

10−2

102

10−3

(2)

(3)

(1)

(THD

+ N)/S

(%)

001aab202

10−1

10−2

102

10−3

f (Hz)

105

104

102

103

(1)

(2)

(THD

+ N)/S

(%)

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