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Philips TDA7056AT manual

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Table of contents for the manual

  • Page 1

    DA T A SH EET Product specification File under Integrated Circuits, IC01 1998 Feb 23 INTEGRA TED CIRCUITS TDA7056AT 3 W mono BTL audio amplifier with DC volume control[...]

  • Page 2

    1998 Feb 23 2 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T FEA TURES • DC volume control • Few external components • Mute mode • Thermal protection • Short-circuit proof • No switch-on or switch-off clicks • Good overall stability • Low power consumption • Low HF rad[...]

  • Page 3

    1998 Feb 23 3 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T BLOCK DIAGRAM Fig.1 Block diagram. handbook, full pagewidth positive input 15 MGM576 4 5 TDA7056A T 7 14 I + i 17 I − i ST ABILIZER TEMPERA TURE PROTECTION 6 DC volume control V ref + + − + − positive output negative out[...]

  • Page 4

    1998 Feb 23 4 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T PINNING SYMBOL PIN DESCRIPTION n.c. 1 not connected n.c. 2 not connected n.c. 3 not connected V P 4 positive supply voltage V I 5 positive input GND1 6 signal ground VC 7 DC volume control n.c. 8 not connected n.c. 9 not conne[...]

  • Page 5

    1998 Feb 23 5 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T FUNCTIONAL DESCRIPTION The TDA7056AT is a mono BTL output amplifier with DC volume control. It is designed for use in TVs and monitors but is also suitable for battery-fed portable recorders and radios. In conventional DC volu[...]

  • Page 6

    1998 Feb 23 6 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T CHARACTERISTICS V P = 12 V ; V DC = 1.4 V ; f = 1 kHz; R L =1 6 Ω ; T amb =2 5 ° C; unless otherwise specified (see Fig.14). Notes 1. With a load connected to the outputs the quiescent current will increase, the maximum va[...]

  • Page 7

    1998 Feb 23 7 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T Fig.3 Quiescent current as a function of the supply voltage. V 5 = 1.4 V; no load. handbook, halfpage 20 0 4 MGM578 8 12 16 04 2 0 81 2 1 6 I q (mA) V P (V) Fig.4 THD as a function of output power. V DC = 1.4 V. (1) V P = 12 V[...]

  • Page 8

    1998 Feb 23 8 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T Fig.7 Gain control as a function of DC volume control. handbook, halfpage MGM582 40 − 80 20 − 20 − 40 0 0 1.2 2.0 0.4 1.6 0.8 V 7 (V) gain (dB) − 60 Fig.8 Noise output voltage as a function of DC volume control. Measur[...]

  • Page 9

    1998 Feb 23 9 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T Fig.11 Total worst case power dissipation as a function of supply voltage. (1) R L =8 Ω . (2) R L =1 6 Ω . (3) R L =2 5 Ω . handbook, halfpage 0 3 2 1 0 42 0 MGM586 81 2 1 6 P (W) V P (V) (1) (3) (2) Fig.12 Control curre[...]

  • Page 10

    1998 Feb 23 10 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T Fig.13 Printed-circuit board layout. handbook, full pagewidth MGM591 +V P − OUT volume + OUT 1 20 TDA7056A/BT 5 k Ω 220 µ F 0.47 µ F 100 nF 100 nF IN GND D&A AUDIO POWER CIC NIJMEGEN b. Top view of component side. a[...]

  • Page 11

    1998 Feb 23 11 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T TEST AND APPLICA TION INFORMA TION T est conditions T amb =2 5 ° C if not specified: V P = 12 V; V DC = 1.4 V; f = 1 kHz; R L =1 6 Ω ; audio bandpass: 22 Hz to 22 kHz. In Figures 5 and 6 a low-pass filter of 80 kHz was app[...]

  • Page 12

    1998 Feb 23 12 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T For single-end application the output peak current may not exceed 100 mA; at higher output currents the short circuit protection (MLC) will be activated. Fig.14 Test and application diagram. To avoid instabilities and too hig[...]

  • Page 13

    1998 Feb 23 13 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T Fig.15 Application with potentiometer as volume control; maximum gain = 30 dB. handbook, halfpage MGM589 7 100 k Ω 1 µ F GND volume control TDA7056AT Fig.16 Application with potentiometer as volume control; maximum gain = [...]

  • Page 14

    1998 Feb 23 14 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T P ACKAGE OUTLINE 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 13.0 12.6 7.[...]

  • Page 15

    1998 Feb 23 15 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T 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 s[...]

  • Page 16

    1998 Feb 23 16 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T 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. Phili[...]

  • Page 17

    1998 Feb 23 17 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T NOTES[...]

  • Page 18

    1998 Feb 23 18 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T NOTES[...]

  • Page 19

    1998 Feb 23 19 Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056A T NOTES[...]

  • Page 20

    Internet: http://www.semiconductors.philips.com Philips Semiconductors – a worldwide company © Philips Electronics N.V. 1998 SCA57 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[...]