Philips TDA8950 Manual de usuario descargar pdf (Pagina 31)

Preliminary data sheet Rev. 01 — 9 September 2008 31 of 39

NXP Semiconductors

TDA8950

2 × 150 W class-D power ampliﬁer

Ripple on V

, short on input pins.

= ±35 V, R

= 4 Ω, V

ripple

= 2 V (p-p).

(1) OUT2, mute

(2) OUT2, on

(3) OUT2, standby

Fig 26. SVRR as function of ripple frequency

= ±35 V

(1) Out1, down

(2) Out1, up

Fig 27. Output voltage as function of mode voltage

001aai711

ripple

(Hz)

10 10

−100

−80

−60

−40

−20

SVRR

(dB)

−140

−120

(3)

(1)

(2)

MODE

(V)

0 54231 4.53.51.5 2.50.5

001aai712

0.0001

0.00001

0.001

0.01

0.1

(V)

0.000001

(1)

(2)

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 37 38 39

1. General description 1
2. Features 1
3. Applications 1
4. Quick reference data 2
5. Ordering information 2
6. Block diagram 3
7. Pinning information 4
8. Functional description 5
001aab172 6
8.3.1 Thermal protection 8
NXP Semiconductors 10
8.4 Differential audio inputs 11
9. Limiting values 12
10. Thermal characteristics 12
11. Static characteristics 13
12. Dynamic characteristics 14
13. Application information 17
13.3.2 Bridge-Tied Load (BTL) 18
13.5 Noise 19
13.6 Heatsink requirements 19
13.7 Output current limiting 20
13.10 Layout and grounding 23
14. Package outline 33
15. Soldering of SMD packages 35
15.4 Reﬂow soldering 36
16. Revision history 37
17. Legal information 38
18. Contact information 38
19. Contents 39

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Philips TDA8950 Manual de usuario Pagina 31

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