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NXP Semiconductors TDA7056AT Datasheet

3 w mono btl audio amplifier with dc volume control
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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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  Summary of Contents for NXP Semiconductors TDA7056AT

  • Page 1 INTEGRATED CIRCUITS DATA SHEET TDA7056AT 3 W mono BTL audio amplifier with DC volume control Product specification 1998 Feb 23...
  • Page 2 SO20 1998 Feb 23 GENERAL DESCRIPTION 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.
  • Page 3: Block Diagram

    DC volume control 1998 Feb 23 n.c. 1 to 3, 8 to 13, 16, 18 to 20 I + i TDA7056AT − I − i TEMPERATURE V ref PROTECTION STABILIZER Fig.1 Block diagram. Product specification...
  • Page 4 OUT− negative output n.c. not connected n.c. not connected n.c. not connected 1998 Feb 23 DESCRIPTION handbook, halfpage Product specification TDA7056AT n.c. n.c. n.c. n.c. n.c. n.c. OUT− n.c. TDA7056AT GND1 GND2 OUT+ n.c. n.c.
  • Page 5 3 W mono BTL audio amplifier with DC volume control 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.
  • Page 6 = 16 Ω − 34.5 35.5 0.65 − − 0.02 to 300 − − −44 − − = 0 Ω and B = 5 kHz. Product specification TDA7056AT MAX. UNIT − 36.5 − − μV − − kΩ − μV μV −...
  • Page 7 = 0.3 V; R = 5 kΩ. = 0 Ω. (2) V = 1.4 V; R (3) V = 1.4 V; R = 5 kΩ. Fig.6 Ripple rejection as a function of frequency. Product specification TDA7056AT MGM579 P o (W) MGM581 f (Hz)
  • Page 8 = 8 Ω. (1) R = 16 Ω. (2) R = 25 Ω. (3) R Fig.10 Output power as a function of the supply voltage. Product specification TDA7056AT MGM583 V 7 (V) MGM585 V P (V)
  • Page 9 Fig.11 Total worst case power dissipation as a function of supply voltage. 1998 Feb 23 MGM586 handbook, halfpage V P (V) (μA) −20 −60 −100 Fig.12 Control current as a function of DC volume control. Product specification TDA7056AT MGM587 V 7 (V)
  • Page 10 1998 Feb 23 a. Top view of bottom copper. +V P 220 μF 100 nF 0.47 μF −OUT 5 kΩ TDA7056A/BT +OUT D&A AUDIO POWER CIC NIJMEGEN b. Top view of component side. Fig.13 Printed-circuit board layout. Product specification TDA7056AT volume MGM591...
  • Page 11: Test And Application Information

    Short-circuit across the load (pins 14 and 17) will activate the thermal protection circuit; this will result in reducing the short-circuit current. Product specification TDA7056AT = 56 K/W for the SO20 plastic package. For a 150 K/W 50 K/W –...
  • Page 12 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. 1998 Feb 23 n.c. 1 to 3, 8 to 13, 16, 18 to 20 TDA7056AT − TEMPERATURE V ref PROTECTION STABILIZER Fig.14 Test and application diagram.
  • Page 13 1 μF 100 kΩ Fig.15 Application with potentiometer as volume control; maximum gain = 30 dB. 1998 Feb 23 handbook, halfpage TDA7056AT MGM589 Fig.16 Application with potentiometer as volume Product specification TDA7056AT 82 kΩ TDA7056AT 1 μF 22 kΩ...
  • Page 14: Package Outline

    0.05 0.014 0.009 0.49 0.29 0.394 REFERENCES JEDEC JEITA MS-013 (A ) θ detail X 10 mm 0.25 0.25 0.043 0.043 0.055 0.01 0.01 0.016 0.039 EUROPEAN PROJECTION Product specification TDA7056AT SOT163-1 θ 0.035 0.004 0.016 ISSUE DATE 99-12-27 03-02-19...
  • Page 15 (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C. Product specification TDA7056AT...
  • Page 16 NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Product specification TDA7056AT DEFINITION...
  • Page 17 (c) customer fully indemnifies NXP Semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NXP Semiconductors’ standard warranty and NXP Semiconductors’ product specifications. Product specification TDA7056AT...
  • Page 18 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.