TDA8922TH datasheet(28/36 Pages) PHILIPS

28 / 36 page

2003 Mar 20

Philips Semiconductors

Objective speciﬁcation

× 25 W class-D power ampliﬁer

TDA8922

handbook, halfpage

Vres(rms)

(mV)

100

400

200

500

600

fclk (kHz)

300

1000

600

800

200

400

MGX345

Fig.34 PWM residual voltage as a function of clock

frequency.

VP = ±20 V; RL =8 Ω.

handbook, halfpage

(W)

100

400

200

500

600

fclk (kHz)

300

MGX343

Fig.35 Output power as a function of clock

frequency.

VP = ±20 V; RL =8 Ω; fi = 1 kHz; THD+N= 10%.

handbook, halfpage

MGX348

(V)

10−4

10−1

10−5

10−6

10−3

10−2

VMODE (V)

Fig.36 Output voltage as a function of mode

selection voltage.

Vi = 100 mV; fi = 1 kHz.

handbook, halfpage

MGX349

S/N

(dB)

100

120

Po (W)

10−2

10−1

110

103

102

(1)

(2)

Fig.36 Signal-to-noise ratio as a function of output

power.

VP = ±20 V; Rs = 5.6 kΩ.; filter: 20 kHz AES17

(1) 2

× 8 Ω SE.

(2) 1

× 8 Ω BTL.

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