TDA8922BTH datasheet(13/32 Pages) PHILIPS

13 / 32 page

9397 750 13357

Preliminary data sheet

Rev. 01 — 1 October 2004

13 of 32

Philips Semiconductors

TDA8922B

× 50 W class-D power ampliﬁer

12. Dynamic characteristics

12.1 Switching characteristics

12.2 Stereo and dual SE application

Table 8:

Switching characteristics

VDD = ±26 V; Tamb = 25 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Internal oscillator

fosc

typical internal oscillator

frequency

ROSC = 30.0 kΩ

290

317

344

kHz

fosc(int)

internal oscillator

frequency range

210

600

kHz

External oscillator or frequency tracking

VOSC

high-level voltage on pin

OSC

SGND + 4.5 SGND + 5

SGND + 6

VOSC(trip)

trip level for tracking on

pin OSC

SGND + 2.5 -

ftrack

frequency range for

tracking

210

600

kHz

Table 9:

Stereo and dual SE application characteristics

VP = ±26 V; RL = 6 Ω; fi = 1 kHz; RsL < 0.1 Ω [1]; Tamb = 25 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

output power

RL =4 Ω; VP = ±21 V

[2]

THD = 0.5 %

THD = 10 %

RL =6 Ω; VP = ±26 V

[2]

THD = 0.5 %

THD = 10 %

RL =8 Ω; VP = ±21 V

[2]

THD = 0.5 %

THD = 10 %

RL =8 Ω; VP = ±26 V

[2]

THD = 0.5 %

THD = 10 %

THD

total harmonic distortion

Po =1W

[3]

fi = 1 kHz

0.02

0.05

fi = 6 kHz

0.07

Gv(cl)

closed loop voltage gain

SVRR

supply voltage ripple

rejection

operating

[4]

fi = 100 Hz

fi = 1 kHz

mute; fi = 100 Hz

[4] -55

standby; fi = 100 Hz

[4] -80

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