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Philips TDA8542 manual

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Table of contents for the manual

  • Page 1

    DA T A SH EET Product specification Supersedes data of 1997 Feb 19 File under Integrated Circuits, IC01 1998 Apr 01 INTEGRA TED CIRCUITS TDA8542 2 × 1 W BTL audio amplifier[...]

  • Page 2

    1998 Apr 01 2 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 FEA TURES • Flexibility in use • Few external components • Low saturation voltage of output stage • Gain can be fixed with external resistors • Standby mode controlled by CMOS compatible levels • Low standby current • No switch-on/switch-[...]

  • Page 3

    1998 Apr 01 3 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 BLOCK DIAGRAM Fig.1 Block diagram. handbook, full pagewidth MGB975 STANDBY/MUTE LOGIC R R 20 k Ω 20 k Ω INL − INL + V CCL OUTL − OUTL + − − + − − + STANDBY/MUTE LOGIC R R 20 k Ω 20 k Ω INR − INR + V CCR SVR MODE OUTR − OUTR + ?[...]

  • Page 4

    1998 Apr 01 4 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 PINNING SYMBOL PIN DESCRIPTION LGND 1 ground, left channel OUTL+ 2 positive loudspeaker terminal, left channel MODE 3 operating mode select (standby , mute, operating) SVR 4 half supply voltage, decoupling ripple rejection BTL/SE 5 BTL loudspeaker or S[...]

  • Page 5

    1998 Apr 01 5 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 LIMITING V ALUES In accordance with the Absolute Maximum Rating System (IEC 134). QUALITY SPECIFICA TION In accordance with “SNW-FQ-611-E” . The number of the quality specification can be found in the “Quality Reference Handbook” . The handbook[...]

  • Page 6

    1998 Apr 01 6 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 DC CHARACTERISTICS V CC =5V ; T amb =2 5 ° C; R L =8 Ω ; V MODE = 0 V ; measured in test circuit Fig.3; unless otherwise specified. Notes 1. With a load connected at the outputs the quiescent current will increase, the maximum of this increase bein[...]

  • Page 7

    1998 Apr 01 7 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 AC CHARACTERISTICS V CC =5V ; T amb =2 5 ° C; R L =8 Ω ; f = 1 kHz; V MODE = 0 V ; measured in test circuit Fig.3; unless otherwise specified. Notes 1. Gain of the amplifier is 2 × R2/R1 in test circuit of Fig.3. 2. The noise output voltage is mea[...]

  • Page 8

    1998 Apr 01 8 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 TEST AND APPLICA TION INFORMA TION T est conditions Because the application can be either Bridge-Tied Load (BTL) or Single-Ended (SE), the curves of each application are shown separately. The thermal resistance = 55 K/W for the DIP16; the maximum sine [...]

  • Page 9

    1998 Apr 01 9 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 BTL APPLICA TION Fig.3 BTL application. handbook, full pagewidth MBH798 14 V CC V iL OUTL − INL − INL + OUTL + 15 100 nF 100 µ F 16 9 18 TD A8542 13 OUTR − GND R L INR − 11 INR + SVR 12 4 3 5 MODE BTL/SE 2 OUTR − OUTR + 10 R L 7 C3 47 µ F 1[...]

  • Page 10

    1998 Apr 01 10 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 Fig.6 THD as a function of frequency. P o = 0.5 W, G v = 20 dB. (1) V CC = 5 V, R L =8 Ω . (2) V CC = 9 V, R L =1 6 Ω . handbook, halfpage 10 1 10 − 1 10 − 2 MGD892 10 10 2 10 3 10 4 THD (%) f (Hz) 10 5 (1) (2) Fig.7 Channel separation as a fu[...]

  • Page 11

    1998 Apr 01 11 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 Fig.10 Worst case power dissipation as a function of V CC . handbook, halfpage 0 3 (1) (2) 2 V CC (V) 1 0 48 1 2 MGD896 P (W) (1) R L =8 Ω . (2) R L =1 6 Ω . Fig.11 P dis as a function of P o . Sine wave of 1 kHz. (1) V CC = 9 V, R L =1 6 Ω . (2[...]

  • Page 12

    1998 Apr 01 12 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 SE APPLICA TION Fig.14 Single-ended application. handbook, full pagewidth MBH799 14 V CC V iL OUTL − INL − INL + OUTL + 15 100 nF 470 µ F C4 470 µ F C5 100 µ F 16 9 18 TD A8542 13 OUTR − GND R L R L INR − 11 INR + SVR 12 4 3 5 MODE BTL/SE 2[...]

  • Page 13

    1998 Apr 01 13 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 Fig.17 Channel separation as a function of frequency. V o = 1 V, G v =2 0d B . (1) V CC = 5 V, R L =3 2 Ω , to buffer. (2) V CC = 7.5 V, R L =4 Ω . (3) V CC = 9 V, R L =8 Ω . (4) V CC = 12 V, R L =1 6 Ω. (5) V CC = 5 V, R L =3 2 Ω . handbook[...]

  • Page 14

    1998 Apr 01 14 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 Fig.21 Power dissipation as a function of P o . Sine wave of 1 kHz. (1) V CC = 12 V, R L =1 6 Ω . (2) V CC = 7.5 V, R L =4 Ω . (3) V CC = 9 V, R L =8 Ω . handbook, halfpage 0 (1) (2) (3) 2.4 1.6 0.8 0 0.4 0.8 1.6 1.2 P (W) P o (W) MGD905[...]

  • Page 15

    1998 Apr 01 15 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 Fig.22 Printed-circuit board layout (BTL and SE). handbook, full pagewidth MBH921 + OUT1 + V CC − OUT1 + OUT2 − OUT2 100 µ F 1 µ F 1 µ F 47 µ F 100 nF 11 6 89 GND MODE IN1 IN2 B/S 12 k Ω P3 56 k Ω 11 k Ω 56 k Ω 11 k Ω 12 k Ω TDA854[...]

  • Page 16

    1998 Apr 01 16 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 P ACKAGE OUTLINES UNIT A max. A 1 A 2 A 3 b p cD (1) E (1) (1) eH E LL p Q Z y w v θ REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC EIAJ mm inches 2.65 0.30 0.10 2.45 2.25 0.49 0.36 0.32 0.23 10.5 10.1 7.6 7.4 1.27 10.65 10.00 1.[...]

  • Page 17

    1998 Apr 01 17 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 UNIT A max. 1 2 b 1 cE e M H L REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC EIAJ mm inches DIMENSIONS (inch dimensions are derived from the original mm dimensions) SOT38-1 92-10-02 95-01-19 A min. A max. b max. w M E e 1 1.40 1.[...]

  • Page 18

    1998 Apr 01 18 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always sui[...]

  • Page 19

    1998 Apr 01 19 Philips Semiconductors Product specification 2 × 1 W BTL audio amplifier TDA8542 DEFINITIONS LIFE SUPPORT APPLICA TIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or sell[...]

  • Page 20

    Internet: http://www.semiconductors.philips.com Philips Semiconductors – a worldwide company © Philips Electronics N.V. 1998 SCA59 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 cont[...]