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Philips TFA9843AJ - page 1
1. General description The TF A9843AJ contains two identical audio pow er amplifiers. The TF A9843AJ can be used as two Single-Ended (SE) channels with a volume control. The maxim um gain is 26 dB. The TF A9843AJ comes in a 9-pin DIL-bent-SIL (DBS9P) pow er package . The TF A9843AJ is pin compatible with the TF A9842AJ , TF A9843(B)J , TF A9842(B) ...
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Philips TFA9843AJ - page 2
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 2 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 4. Quic k reference data [1] A minimum load of 3 Ω is allowed at supply v oltages > 22 V . [2] Supply voltage ripple re ...
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Philips TFA9843AJ - page 3
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 3 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 6. Bloc k diagram 7. Pinning inf ormation 7.1 Pinning Fig 1. Block dia gram 001aae428 VOLUME CONTROL SHORT-CIRCUIT AND TEMPE ...
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Philips TFA9843AJ - page 4
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 4 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 7.2 Pin description 8. Functional description 8.1 Input configuration The input cut-off frequency is as f ollows: (1) Singl ...
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Philips TFA9843AJ - page 5
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 5 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 8.2.2 Headroom T ypical CD music requires at least 12 dB (factor 15.85) dynamic headroom, compared to the av erage po wer ou ...
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Philips TFA9843AJ - page 6
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 6 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 8.5 Built-in pr otection circuits The TF A9843AJ contains two types of temperature sensors; one measures the local temperatu ...
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Philips TFA9843AJ - page 7
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 7 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 11. Static characteristics [1] A minimum load of 3 Ω is allowed at supply v oltages > 22 V . [2] The DC output voltage ...
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Philips TFA9843AJ - page 8
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 8 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol [1] The noise output voltage is measured at the output in a frequency r ange from 20 Hz to 22 kHz (unweighted), with a sourc ...
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Philips TFA9843AJ - page 9
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 9 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol THD = 10 %; R L = 4 Ω ; f = 1 kHz V CC = 18 V ; R L = 4 Ω Fig 7. Output power as a function of suppl y volta ge Fig 8. T ...
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Philips TFA9843AJ - page 10
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 10 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 13. Application inf ormation 13.1 Application diagrams 13.1.1 Single-ended application Remark: By s witching inductive load ...
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Philips TFA9843AJ - page 11
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 11 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 13.1.2 V olume contr ol drive options Fig 12. V olume control drive cir cuit with 3.3 V PWM Fig 13. V olume control drive c ...
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Philips TFA9843AJ - page 12
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 12 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 13.2 Printed-circuit boar d 13.2.1 Lay out and gr ounding T o obtain a high-le vel system perf ormance, cer tain grounding ...
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Philips TFA9843AJ - page 13
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 13 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 13.3 Thermal behavior and heatsink calculation The measured maximum thermal resistance of the IC package, R th(j-mb) , is 2 ...
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Philips TFA9843AJ - page 14
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 14 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 14. T est inf ormation 14.1 Quality information The General Quality Specification f or Integr ated Circuits, SNW -FQ-611 i ...
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Philips TFA9843AJ - page 15
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 15 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 15. P ac kage outline Fig 17. P ackage outline SO T523-1 (DBS9P) REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE ...
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Philips TFA9843AJ - page 16
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 16 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 16. Soldering 16.1 Introduction to soldering thr ough-hole mount pac kages This te xt gives a brief insight to wa v e, dip ...
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Philips TFA9843AJ - page 17
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 17 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 17. Revision history T able 11. Revision history Document ID Release date Data sheet status Change notice Supersedes TF A98 ...
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Philips TFA9843AJ - page 18
TF A9843AJ_1 © Koninklijk e Philips Electronics N.V . 2006. All r ights reserved. Preliminary data sheet Rev . 01 — 28 April 2006 18 of 19 Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol 18. Legal inf ormation 18.1 Data sheet status [1] Please consult the most recently issued document before initiating or com ...
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Philips TFA9843AJ - page 19
Philips Semiconductors TF A9843AJ 20 W stereo power amplifier with v olume contr ol © K oninklijke Philips Electronics N.V . 2006. All rights reserved. For more information, please visit: http://www.semiconductors.philips.com. For sales office addresses, email to: sales.addresses@www.semiconductors.philips.com. Date of release: 28 April 2006 Docu ...
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