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Manual Philips TDA8944J

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  • Philips TDA8944J - page 1

    TD A8944J 2 x 7 W stereo Bridge Tied Load (BTL) audio amplifier Rev . 02 — 14 February 2000 Product specification c c 1. General description The TD A8944J is a dual-channel audio power amplifier with an output po wer of 2 × 7 W at an 8 Ω load and a 12 V supply . The circuit contains two Bridge Tied Load (BTL) amplifiers with an all-NPN out ...

  • Philips TDA8944J - page 2

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 2 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 5. Or dering information 6. Bloc k diagram P o output power THD = 10%; R L =8 Ω ; V CC =1 2V 67- W THD total harmonic distor tion P o = 1 W - 0.0 ...

  • Philips TDA8944J - page 3

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 3 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 7. Pinning inf ormation 7.1 Pinning 7.2 Pin description Fig 2. Pin configuration. handbook, halfpage TDA8944J MBK936 1 2 3 4 5 6 7 8 9 10 11 12 13 ...

  • Philips TDA8944J - page 4

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 4 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 8. Functional description The TD A8944J is a stereo BTL audio power amplifier capab le of deliv er ing 2 × 7W output pow er to an 8 Ω load at T ...

  • Philips TDA8944J - page 5

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 5 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 8.2 P ower amplifier The pow er amplifier is a Br idge Tied Load (BTL) amplifier with an all-NPN output stage, capab le of delivering a peak out ...

  • Philips TDA8944J - page 6

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 6 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. Mute — In this mode the amplifier is DC-biased but not oper ational (no audio output); t he DC le vel of the input and output pins remain on hal ...

  • Philips TDA8944J - page 7

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 7 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 9. Limiting v alues 10. Thermal characteristics 11. Static characteristics [1] With a load connected at the outputs the quiescent current will incr ...

  • Philips TDA8944J - page 8

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 8 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 12. Dynamic characteristics [1] The noise output v oltage is measured at the output in a frequency range from 20 Hz to 20 kHz (unweighted), with a ...

  • Philips TDA8944J - page 9

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 9 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. Fig 5. Output v oltage as function of mode voltage. No bandpass filter applied. Fig 6. T otal harmonic distortion as function of output power . Fi ...

  • Philips TDA8944J - page 10

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 10 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. THD = 10%. Fig 8. Output power as function of suppl y voltage. Fig 9. T otal power dissipation as function of suppl y v oltage . V CC =1 2V . Fig ...

  • Philips TDA8944J - page 11

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 11 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. No bandpass filter applied. Fig 12. Channel separation as function of frequency . V CC = 12 V ; R s =0 Ω ; V ripple = 707 mV (peak-to-peak); no ...

  • Philips TDA8944J - page 12

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 12 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 13. Internal cir cuitry T able 9: Internal circuitry Pin Symbol Equivalent cir cuit 6 and 8 IN1+ and IN1 − 12 and 9 IN2+ and IN2 − 1 and 4 OUT ...

  • Philips TDA8944J - page 13

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 13 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 14. Application inf ormation 14.1 Printed-circuit boar d (PCB) 14.1.1 Lay out and grounding F or a high system performance lev el cer tain groundi ...

  • Philips TDA8944J - page 14

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 14 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 14.1.2 P ower suppl y decoupling Proper supply bypassing is critical f or low-noise perf or mance and high supply v oltage ripple rejection. The r ...

  • Philips TDA8944J - page 15

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 15 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 14.2 Thermal behaviour and heatsink calculation The measured maximum thermal resistance of the IC package, R th(j-mb) is 6.9 K/W . A calculation f ...

  • Philips TDA8944J - page 16

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 16 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 16. P ac kage outline Fig 16. DBS17P packa ge outline . REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC EIAJ DIMENSIONS (mm ar ...

  • Philips TDA8944J - page 17

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 17 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 17. Soldering 17.1 Introduction to soldering thr ough-hole mount packages This te xt gives a brief insight to wa ve , dip and manual soldering. A ...

  • Philips TDA8944J - page 18

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 18 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All rights reser ved. 18. Revision history T able 11: Revision history Rev Date CPCN Description 02 000214 - Pr oduct specification; second version; super sedes initia ...

  • Philips TDA8944J - page 19

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 19 of 21 9397 750 06861 © Philips Electronics N.V . 2000 All rights reser ved. 19. Data sheet status [1] Please consult the most recently issued data sheet before initiating or completing a design. 20. Definitions Short-form ...

  • Philips TDA8944J - page 20

    Philips Semiconductors TD A8944J 2 x 7 W stereo BTL audio amplifier Product specification Rev . 02 — 14 Februar y 2000 20 of 21 9397 750 06861 © Philips Electronics N.V . 2000. All r ights reserved. Philips Semiconductor s - a world wide company Argentina: see South America Australia: T el. +61 2 9704 8141, F ax. +61 2 9704 8139 Austria: T el. ...

  • Philips TDA8944J - page 21

    © Philips Electronics N.V. 2000. Printed in The Netherlands All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without ...

Manufacturer Philips Category Stereo Amplifier

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