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INTEGRATED CIRCUITS
DATA SHEET
TDA7056AT
3 W mono BTL audio amplifier with
DC volume control
1998 Feb 23
Product specification
File under Integrated Circuits, IC01
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control FEATURES GENERAL DESCRIPTION • DC volume control The TDA7056AT is a mono Bridge-Tied Load (BTL) output amplifier with DC volume control. It is designed for use in • Few external components TVs and monitors, but is also suitable for battery-fed • Mute mode portable recorders and radios. The device is contained in • Thermal protection a 20-lead small outline package. • Short-circuit proof A Mis
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control BLOCK DIAGRAM V handbook, full pagewidth P n.c. 1 to 3, 8 to 13, 4 16, 18 to 20 + TDA7056AT I + i 14 positive output 5 positive input + 7 DC volume control - I - i 17 - negative output + TEMPERATURE V STABILIZER PROTECTION ref 6 15 MGM576 signal power ground ground Fig.1 Block diagram. 1998 Feb 23 3
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control PINNING SYMBOL PIN DESCRIPTION n.c. 1 not connected n.c. 2 not connected handbook, halfpage n.c. 3 not connected n.c. 1 20 n.c. V 4 positive supply voltage P n.c. 19 n.c. 2 V 5 positive input I n.c. 3 18 n.c. GND1 6 signal ground V 4 17 OUT- P VC 7 DC volume control V 5 16 n.c. n.c. 8 not connected I TDA7056AT n.c. 9 not connected GND1 6 15 GND2 n.c. 10 not connected VC 7 14 OUT+ n.c. 11 not
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control FUNCTIONAL DESCRIPTION The maximum gain of the amplifier is fixed at 35.5 dB. The DC volume control stage has a logarithmic control The TDA7056AT is a mono BTL output amplifier with DC characteristic. volume control. It is designed for use in TVs and monitors The total gain can be controlled from +35.5 to - 44 dB. but is also suitable for battery-fed portable recorders and radios. If the DC v
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control CHARACTERISTICS V = 12 V; V = 1.4 V; f = 1 kHz; R =16 Ω; T =25 °C; unless otherwise specified (see Fig.14). P DC L amb SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply V supply voltage 4.5 - 18 V P I total quiescent current R = ∞; note 1 - 816 mA q(tot) L Maximum gain (V = 1.4 V) 7 P output power THD = 10%; R =16 Ω 3 3.5 - W o L THD total harmonic distortion P = 0.5 W - 0.3 1 % o G maxim
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control MGM578 MGM579 20 12 handbook, halfpage handbook, halfpage I THD q (%) (mA) 10 16 8 12 6 8 4 4 2 (1) 0 0 04 812 16 20 - 1 10 110 P (W) o V (V) P V = 1.4 V; no load. 5 V = 1.4 V. DC (1) V = 12 V; R =16 Ω. P L Fig.3 Quiescent current as a function of the supply voltage. Fig.4 THD as a function of output power. MGM580 MGM581 8 100 handbook, halfpage handbook, halfpage RR THD (dB) (%) 80 6 (1) 6
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control MGM582 MGM583 1000 40 handbook, halfpage handbook, halfpage gain V n (dB) (μV) 20 800 0 600 - 20 400 - 40 200 - 60 0 - 80 0 0.4 0.8 1.2 1.6 2.0 0 0.4 0.8 1.2 1.6 2.0 V (V) V (V) 7 7 Measured with R =5kΩ unweighted; f = 22 Hz to 22 kHz. s Fig.7 Gain control as a function of DC volume Fig.8 Noise output voltage as a function of DC control. volume control. MGM584 MGM585 5 1000 handbook, halfpage
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control MGM586 MGM587 3 100 handbook, halfpage handbook, halfpage I 5 (μA) P (W) 60 2 20 (1) (2) (3) - 20 1 - 60 0 - 100 042 812 160 0 0.4 0.8 1.2 1.6 2.0 V (V) V (V) P 7 (1) R =8 Ω. L (2) R =16 Ω. L (3) R =25 Ω. L Fig.11 Total worst case power dissipation as a Fig.12 Control current as a function of DC volume function of supply voltage. control. 1998 Feb 23 9
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control handbook, full pagewidth a. Top view of bottom copper. GND +V P 220 μF 100 nF 0.47 μF IN 20 1 - OUT 5 kΩ TDA7056A/BT 100 nF +OUT D&A AUDIO POWER volume CIC NIJMEGEN MGM591 b. Top view of component side. Fig.13 Printed-circuit board layout. 1998 Feb 23 10
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control TEST AND APPLICATION INFORMATION Thermal behaviour: The measured thermal resistance of the IC package is Test conditions highly dependent on the configuration and size of the T =25 °C if not specified: V = 12 V; V = 1.4 V; amb P DC application board. Data may not be comparable between f = 1 kHz; R =16 Ω; audio bandpass: 22 Hz to 22 kHz. L different semiconductors manufacturers because the app
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control V handbook, full pagewidth P (1) 100 nF 220 μF n.c. 1 to 3, 8 to 13, 4 16, 18 to 20 + TDA7056AT I + i 14 0.47 μF 5 positive input + 7 R = 16 Ω L - I - i 17 - + TEMPERATURE 5 R s V PROTECTION STABILIZER ref kΩ DC volume 6 15 control MGM588 ground To avoid instabilities and too high distortion, the input- and power ground must be separated as long as possible and connected together as cl
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control V = 12 V handbook, halfpage P handbook, halfpage 82 kΩ volume control 7 TDA7056AT 7 TDA7056AT 1 μF 1 μF 100 kΩ 22 kΩ GND GND MGM589 volume MGM590 control Fig.15 Application with potentiometer as volume Fig.16 Application with potentiometer as volume control; maximum gain = 30 dB. control; maximum gain = 36 dB. 1998 Feb 23 13
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control PACKAGE OUTLINE SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c y H v M A E Z 20 11 Q A 2 A (A ) 3 A 1 pin 1 index θ L p L 1 10 detail X e w M b p 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) A (1) (1) (1) UNIT A A A b cD E eH LL Q v w y θ 1 2 3 p E p Z max. 0.30 2.45 0.49 0.32 13.0 7.6 10.65 1.1 1.1 0.9 mm 2.65
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control SOLDERING Wave soldering Wave soldering techniques can be used for all SO Introduction packages if the following conditions are observed: There is no soldering method that is ideal for all IC • A double-wave (a turbulent wave with high upward packages. Wave soldering is often preferred when pressure followed by a smooth laminar wave) soldering through-hole and surface mounted components are m
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Limiting values Limiting values given are in accordance with the Absolute Maxi
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control NOTES 1998 Feb 23 17
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control NOTES 1998 Feb 23 18
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Philips Semiconductors Product specification 3 W mono BTL audio amplifier with DC TDA7056AT volume control NOTES 1998 Feb 23 19
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Philips Semiconductors – a worldwide company Argentina: see South America Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB, Tel. +31 40 27 82785, Fax. +31 40 27 88399 Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND, Tel. +64 9 849 4160, Fax. +64 9 849 7811 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 160 1010, Fax. +43 160 101 1210 Norway: Box 1, Manglerud 0612, OSLO, Tel.
