Manuale per l’uso Philips TDA8950

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Summary

Philips TDA8950 - page 1

1. General description The TD A8950 is a high efﬁciency class-D audio power ampliﬁer . The typical output power is 2 × 150 W with a speaker load impedance of 4 Ω . The TD A8950 is av ailable in the HSOP24 po wer pac kage and DBS23P power pac kage. The ampliﬁer operates ov er a wide supply v oltage range from ± 12.5 V to ± 40 V and consum ...
Philips TDA8950 - page 2

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 2 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 4. Quic k reference data 5. Or dering information T able 1. Quick ref erence data Symbol P arameter Conditions Min Ty p Max Unit General, V P = ± 35 V V P supply voltage ± ...
Philips TDA8950 - page 3

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 3 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 6. Bloc k diagram The pin numbers in parenthesis ref er to type number TD A8950J. Fig 1. Block dia gram 001aah653 OUT1 V SSP1 V DDP2 DRIVER HIGH OUT2 BOOT2 TDA8950TH (TDA8950 ...
Philips TDA8950 - page 4

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 4 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 7. Pinning inf ormation 7.1 Pinning Fig 2. Pin conﬁguration TD A8950TH Fig 3. Pin conﬁguration TD A8950J TD A8950TH VSSD VSSA VDDP2 SGND BOOT2 VDDA OUT2 IN2M VSSP2 IN2P n ...
Philips TDA8950 - page 5

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 5 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 7.2 Pin description 8. Functional description 8.1 General The TD A8950 is a two-channel audio po wer ampliﬁer using class-D technology . The audio input signal is conv er t ...
Philips TDA8950 - page 6

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 6 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer The TD A8950 one-chip class-D ampliﬁer contains high power s witches, drivers, timing and handshaking between the pow er switches and some control logic. Also an adv anced ...
Philips TDA8950 - page 7

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 7 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer In order to fully charge the coupling capacitors at the inputs, the ampliﬁer will remain automatically in the Mute mode bef ore switching to the Oper ating mode. A complete ...
Philips TDA8950 - page 8

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 8 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 8.2 Pulse width modulation frequency The output signal of the ampliﬁer is a PWM signal with a carrier frequency that typically lies between 300 kHz and 400 kHz. Using a 2nd ...
Philips TDA8950 - page 9

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 9 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer TFB is speciﬁed at the temperature v alue T act(th_fold) where the closed loop v oltage gain is reduced with 6 dB. The r ange of the TFB is: T act(th_fold) − 5 ° C < ...
Philips TDA8950 - page 10

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 10 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer Should there be an impedance drop (e.g. due to dynamic beha vior of the loudspeaker) the same protection will be activated. The maxim um output current will again be limited ...
Philips TDA8950 - page 11

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 11 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer [1] Ampliﬁer gain will depend on junction temper ature and heatsink size. [2] Only complete shutdo wn of ampliﬁer if shor t-circuit impedance is below threshold of 1 Ω ...
Philips TDA8950 - page 12

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 12 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 9. Limiting v alues 10. Thermal characteristics T able 5. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol P arameter Conditions Min ...
Philips TDA8950 - page 13

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 13 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 11. Static characteristics [1] The circuit is DC adjusted at V P = ± 12.5 V to ± 42.5 V . [2] With respect to SGND (0 V). [3] The tr ansition between Standby and Mute mode ...
Philips TDA8950 - page 14

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 14 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 12. Dynamic characteristics 12.1 Switching characteristics [1] When using an e xternal oscillator , the f osc(ext) frequency (500 kHz minimum, 900 kHz maximum) will result i ...
Philips TDA8950 - page 15

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 15 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 12.2 Stereo and dual SE application characteristics [1] R sL is the series resistance of inductor of low-pass LC ﬁlter in the application. [2] Output po wer is measured in ...
Philips TDA8950 - page 16

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 16 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 12.3 Mono BTL application characteristics [1] R sL is the series resistance of inductor of low-pass LC ﬁlter in the application. [2] Output po wer is measured indirectly; ...
Philips TDA8950 - page 17

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 17 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 13. Application inf ormation 13.1 Mono BTL application When using the power ampliﬁer in a mono BTL application the inputs of both channels must be connected in parallel an ...
Philips TDA8950 - page 18

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 18 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 13.3.2 Bridge-Tied Load (BTL) Maximum output po wer : (3) Maximum current internally limited to 9.2 A: (4) V ariables: • R L : load impedance • R sL : series impedance o ...
Philips TDA8950 - page 19

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 19 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 13.5 Noise Noise should be measured using a high order low-pass ﬁlter with a cut-off frequency of 20 kHz. The standard audio band pass ﬁlters, used in audio analyz ers, ...
Philips TDA8950 - page 20

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 20 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer The audio signal has a crest f actor of 10 (the ratio between peak pow er and av erage pow er (20 dB)), this means that the av erage output power is 1 ⁄ 10 of the peak pow ...
Philips TDA8950 - page 21

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 21 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 100 ms. The a ver age dissipation will be low in this situation because of this low duty cycle . If the ov er current condition is remov ed the ampliﬁer will remain in Ope ...
Philips TDA8950 - page 22

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Philips TDA8950 - page 23

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 23 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 13.10 Lay out and grounding T o obtain a high-lev el system perf or mance, cer tain grounding techniques are essential. The input ref erence grounds hav e to be tied with th ...
Philips TDA8950 - page 24

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 24 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 13.11 Curves measured in reference design V P = ± 35 V , 2 × 4 Ω SE conﬁguration. (1) OUT2, f i = 6 kHz (2) OUT2, f i = 1 kHz (3) OUT2, f i = 100 Hz Fig 12. THD as a f ...
Philips TDA8950 - page 25

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 25 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer V P = ± 35 V , f osc = 350 kHz, 1 × 8 Ω BTL conﬁguration. (1) f i = 6 kHz (2) f i = 1 kHz (3) f i = 100 Hz Fig 14. THD as a function of output power , BTL conﬁgurati ...
Philips TDA8950 - page 26

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 26 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer V P = ± 35 V , 2 × 6 Ω SE conﬁguration. (1) OUT2, P o = 1 W (2) OUT2, P o = 10 W Fig 16. THD as a function of frequency , SE conﬁguration with 2 × 6 Ω load V P = ...
Philips TDA8950 - page 27

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 27 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer V P = ± 35 V , 2 × 4 Ω SE conﬁguration For OUT1 and OUT2 f or both 1 W and 10 W . Fig 18. Channel separation as a function of frequency , SE conﬁguration with 2 × 4 ...
Philips TDA8950 - page 28

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 28 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer V P = ± 35 V , f i = 1 kHz, f osc = 325 kHz (1) 2 × 4 Ω SE conﬁguration (2) 2 × 6 Ω SE conﬁguration (3) 2 × 8 Ω SE conﬁguration Fig 20. Po wer dissipation as ...
Philips TDA8950 - page 29

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 29 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer f i = 1 kHz, f osc = 325 kHz Note: inﬁnite heat sink used. (1) THD = 10 %, 4 Ω (2) THD = 0.5 %, 4 Ω ; THD = 10 %, 6 Ω (3) THD = 0.5 %, 6 Ω ; THD = 10 %, 8 Ω (4) ...
Philips TDA8950 - page 30

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 30 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer V P = ± 35 V , V i = 100 mV , R s = 0 Ω , C i = 330 pF . (1) 1 × 8 Ω BTL conﬁguration (2) 2 × 4 Ω SE conﬁguration (3) 2 × 6 Ω SE conﬁguration (4) 2 × 8 ? ...
Philips TDA8950 - page 31

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 31 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer Ripple on V SS , shor t on input pins. V P = ± 35 V , R L = 4 Ω, V ripple = 2 V (p-p). (1) OUT2, mute (2) OUT2, on (3) OUT2, standby Fig 26. SVRR as function of ripple fr ...
Philips TDA8950 - page 32

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 32 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer V P = ± 35 V , V i = 2 V (rms), f osc = 325 kHz (1) OUT2, 8 Ω (2) OUT2, 6 Ω (3) OUT2, 4 Ω Fig 28. Mute attenuation as function of frequency 001aai713 f (Hz) 10 10 5 1 ...
Philips TDA8950 - page 33

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 33 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 14. P ac kage outline Fig 29. Packa ge outline SOT411-1 (DBS23P) UNIT A 2 REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC JEITA mm 4.6 4.3 A 4 1.15 0.85 ...
Philips TDA8950 - page 34

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 34 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer Fig 30. Packa ge outline SOT566-3 (HSOP24) UNIT A 4 (1) REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE 03-02-18 03-07-23 IEC JEDEC JEITA mm + 0.08 − 0.04 3.5 0. ...
Philips TDA8950 - page 35

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 35 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 15. Soldering of SMD pac kages This te xt provides a v er y br ief insight into a comple x technology . A more in-depth account of soldering ICs can be found in Application ...
Philips TDA8950 - page 36

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 36 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 15.4 Reﬂow soldering K ey char acteristics in reﬂow soldering are: • Lead-free v ersus SnPb solder ing; note that a lead-free reﬂow process usually leads to higher m ...
Philips TDA8950 - page 37

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 37 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer F or fur ther information on temperature proﬁles, ref er to Application Note AN10365 “Surf ace mount reﬂow soldering description” . 16. Revision history MSL: Moistur ...
Philips TDA8950 - page 38

TDA8950_1 © NXP B.V . 2008. All rights reserved. Preliminary data sheet Rev . 01 — 9 September 2008 38 of 39 NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer 17. Legal inf ormation 17.1 Data sheet status [1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘shor t data shee ...
Philips TDA8950 - page 39

NXP Semiconductors TD A8950 2 × 150 W class-D po wer ampliﬁer © NXP B.V . 2008. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 9 September 2008 Document identifier: TDA8950_1 Please be aware that important notices concerning ...

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Tutti sono importanti, ma le informazioni più importanti dal punto di vista di utilizzo del dispositivo possono essere trovate nel manuale per l’uso Philips TDA8950.

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Manuale completo del dispositivo Philips TDA8950, come deve essere?
Il manuale per l’uso, denominato anche istruzioni per l’uso, o semplicemente il manuale è un documento tecnico progettato per aiutare ad utilizzare Philips TDA8950 dagli utenti. I manuali sono di solito scritti da uno scrittore tecnico, ma in un linguaggio accessibile a tutti gli utenti Philips TDA8950.

Il manuale per l’uso completo Philips, dovrebbe includere vari elementi di base. Alcuni di loro sono meno importanti, come ad esempio: copertina / pagina del titolo o pagina di autore. Tuttavia, la parte rimanente, dovrebbe fornire informazioni importanti dal punto di vista dell'utente.

1. Introduzione e la guida su come utilizzare il manuale Philips TDA8950 - All'inizio di ogni manuale, dovremmo trovare indizi su come utilizzare il documento. Dovrebbe contenere informazioni sulla posizione dell’indice Philips TDA8950, FAQ o i problemi più comuni : i punti che sono più spesso cercati dagli utenti di ogni manuale
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Manuale per l’uso Philips TDA8950

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