Datasheet

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DATA SHEET

Product specification 1998 Feb 23

INTEGRATED CIRCUITS

TDA7056AT

3 W mono BTL audio amplifier with

DC volume control

Summary of content (18 pages)

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INTEGRATED CIRCUITS DATA SHEET TDA7056AT 3 W mono BTL audio amplifier with DC volume control Product specification 1998 Feb 23
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT 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 TVs and monitors, but is also suitable for battery-fed portable recorders and radios. The device is contained in a 20-lead small outline package.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT BLOCK DIAGRAM handbook, full pagewidth positive input DC volume control VP n.c. 1 to 3, 8 to 13, 16, 18 to 20 4 TDA7056AT I + i 14 + I − i 17 − + 7 − + Vref STABILIZER TEMPERATURE PROTECTION 6 15 MGM576 signal ground Fig.1 Block diagram.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT PINNING SYMBOL PIN DESCRIPTION n.c. 1 not connected n.c. 2 not connected n.c. 3 not connected VP 4 positive supply voltage VI 5 positive input GND1 6 VC n.c. n.c. 1 20 n.c. n.c. 2 19 n.c. signal ground n.c. 3 18 n.c. 7 DC volume control VP 4 17 OUT− 8 not connected n.c. 9 not connected n.c. 10 not connected n.c. 11 not connected n.c. 12 not connected n.c.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control FUNCTIONAL DESCRIPTION TDA7056AT The maximum gain of the amplifier is fixed at 35.5 dB. The DC volume control stage has a logarithmic control characteristic. 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. The total gain can be controlled from +35.5 to −44 dB.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT CHARACTERISTICS VP = 12 V; VDC = 1.4 V; f = 1 kHz; RL = 16 Ω; Tamb = 25 °C; unless otherwise specified (see Fig.14). SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply VP supply voltage Iq(tot) total quiescent current 4.5 − 18 V RL = ∞; note 1 − 8 16 mA Maximum gain (V7 = 1.4 V) Po output power THD = 10%; RL = 16 Ω 3 3.5 − W THD total harmonic distortion Po = 0.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT MGM578 20 MGM579 12 THD (%) 10 handbook, halfpage handbook, halfpage Iq (mA) 16 8 12 6 8 4 4 2 (1) 0 0 4 8 12 16 0 10−1 20 VP (V) V5 = 1.4 V; no load. Fig.3 1 10 Po (W) VDC = 1.4 V. (1) VP = 12 V; RL = 16 Ω. Quiescent current as a function of the supply voltage. Fig.4 THD as a function of output power.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT MGM583 MGM582 1000 Vn (μV) handbook,40 halfpage handbook, halfpage gain (dB) 20 800 0 600 −20 400 −40 200 −60 −80 0 0 0.4 0.8 1.2 1.6 2.0 0 0.4 1.2 0.8 2.0 1.6 V7 (V) V7 (V) Measured with Rs = 5 kΩ unweighted; f = 22 Hz to 22 kHz. Fig.7 Gain control as a function of DC volume control. Fig.8 Noise output voltage as a function of DC volume control.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT MGM587 MGM586 3 100 handbook, halfpage handbook, halfpage I5 (μA) P (W) 60 2 (1) (2) 20 (3) −20 1 −60 −100 0 0 4 8 12 16 20 VP (V) 0 0.4 0.8 1.2 2.0 1.6 V7 (V) (1) RL = 8 Ω. (2) RL = 16 Ω. (3) RL = 25 Ω. Fig.11 Total worst case power dissipation as a function of supply voltage. 1998 Feb 23 Fig.12 Control current as a function of DC volume control.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT handbook, full pagewidth a. Top view of bottom copper. +VP GND 220 μF 100 nF −OUT 20 0.47 μF IN 1 5 kΩ TDA7056A/BT 100 nF +OUT D&A AUDIO POWER CIC NIJMEGEN volume MGM591 b. Top view of component side. Fig.13 Printed-circuit board layout.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT TEST AND APPLICATION INFORMATION Thermal behaviour: Test conditions The measured thermal resistance of the IC package is highly dependent on the configuration and size of the application board. Data may not be comparable between different semiconductors manufacturers because the application boards and test methods are not (yet) standardized.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT VP handbook, full pagewidth (1) 220 μF 100 nF n.c. 0.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT VP = 12 V handbook, halfpage handbook, halfpage 82 kΩ volume control 7 TDA7056AT 7 1 μF 1 μF 100 kΩ 22 kΩ GND GND MGM589 volume control Fig.15 Application with potentiometer as volume control; maximum gain = 30 dB. 1998 Feb 23 TDA7056AT MGM590 Fig.16 Application with potentiometer as volume control; maximum gain = 36 dB.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT PACKAGE OUTLINE SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c HE y v M A Z 20 11 Q A2 A (A 3) A1 pin 1 index θ Lp L 10 1 e bp detail X w M 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.3 0.1 2.45 2.25 0.25 0.49 0.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT SOLDERING Wave soldering Introduction Wave soldering techniques can be used for all SO packages if the following conditions are observed: 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.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control TDA7056AT DATA SHEET STATUS DOCUMENT STATUS(1) PRODUCT STATUS(2) DEFINITION Objective data sheet Development This document contains data from the objective specification for product development. Preliminary data sheet Qualification This document contains data from the preliminary specification. Product data sheet Production This document contains the product specification. Notes 1.
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NXP Semiconductors Product specification 3 W mono BTL audio amplifier with DC volume control Limiting values ⎯ Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device.
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NXP Semiconductors provides High Performance Mixed Signal and Standard Product solutions that leverage its leading RF, Analog, Power Management, Interface, Security and Digital Processing expertise Customer notification This data sheet was changed to reflect the new company name NXP Semiconductors, including new legal definitions and disclaimers. No changes were made to the technical content, except for package outline drawings which were updated to the latest version.