INTEGRATED CIRCUITS DATA SHEET TDA8551 1 W BTL audio amplifier with digital volume control Product specification Supersedes data of 1997 May 07 1998 Feb 23
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 FEATURES GENERAL DESCRIPTION • One pin digital volume control The TDA8551; TDA8551T is a one channel 1 W Bridge-Tied Load (BTL) audio power amplifier capable of delivering 1 W output power to an 8 Ω load at THD = 10% using a 5 V power supply. The circuit contains a BTL power amplifier, a digital volume control and standby/mute logic.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 BLOCK DIAGRAM VP handbook, full pagewidth 6 UP/DOWN 1 INTERFACE up down TDA8551 UP/DOWN COUNTER MASTER IN 4 VOLUME CONTROL 8 OUT+ VP 20 kΩ 15 kΩ SVR 5 kΩ R 3 R STANDBY/ MUTE/ OPERATING 15 kΩ 7 2 5 OUT− SLAVE MGK363 MODE GND Fig.1 Block diagram.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control FUNCTIONAL DESCRIPTION Each pulse on the UP/DOWN pin results in a change in gain of 80/64 = 1.25 dB (typical value). In the basic application the UP/DOWN pin is switched to ground or VP by a double push-button.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VP supply voltage −0.3 +5.5 V VI input voltage −0.3 VP + 0.3 V IORM repetitive peak output current − 1 A Tstg storage temperature −55 +150 °C Tamb operating temperature −40 +85 °C Vsc AC and DC short-circuit safe voltage − 5.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 CHARACTERISTICS VP = 5 V; Tamb = 25 °C; RL = 8 Ω; VMODE = 0 V; total gain setting at +7 dB (unless otherwise specified); measured in test circuit of Fig.4. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT DC characteristics VP supply voltage 2.7 5 5.5 V Iq quiescent current RL = ∞; note 1 − 6 10 mA Istb standby current VMODE = VP − − 10 μA VO DC output voltage note 2 − 2.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 Notes to the Characteristics 1. With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal to the DC output offset voltage divided by RL. 2. The DC output voltage with respect to ground is approximately 0.5VP. 3. Output voltage in mute position is measured with an input of 1 V (RMS), including noise, in a bandwidth of 20 kHz. 4.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 TEST AND APPLICATION INFORMATION VP handbook, full pagewidth UP R1 volume control 2.2 kΩ DOWN C5 C1 100 nF IN 4 330 nF UP/DOWN VP 1 6 C3 100 nF MASTER VOLUME CONTROL C4 220 μF VP = 5 V 8 OUT+ VP 20 kΩ Vi TDA8551 15 kΩ 5 kΩ R SVR 3 8Ω R C2 100 μF VP standby STANDBY/ MUTE/ OPERATING 15 kΩ 2 7 MODE GND 5 OUT− SLAVE mute operating MGM560 Fig.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control When a practical PCB layout is used with wider copper tracks and some extra copper added both to the IC pin connections and underneath the IC, the thermal resistance from junction to ambient can be reduced. Without these measures Rth j-a = 160 K/W for the SO8 package; see Chapter “Thermal characteristics”.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 MGM550 10 MGM549 0 handbook, halfpage handbook, halfpage SVRR (dB) THD (%) (1) −20 1 (2) (1) 10−1 (3) −40 (2) (4) (3) (5) (6) 10−2 102 10 103 Po = 0.1 W. (1) Gv = 0 dB. Fig.8 −60 10 104 f (Hz) 105 103 Vripple = 100 mV. Rsource = 0 Ω. (1) C2 = 10 μF; Gv = 20 dB. (2) C2 = 10 μF; Gv = 7 dB. (2) Gv = 7 dB. (3) Gv = 20 dB.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 MGM553 20 Gv MGM558 3 handbook, halfpage handbook, halfpage (dB) Po (W) 0 2 −20 (1) −40 (2) 1 −60 −80 0 0 20 40 60 nvol 80 0 2 4 6 Po(max) is limited by Ptot and a maximum available repetitive peak output current of 1 A. THD = 10 %. (1) RL = 4 Ω. (2) RL = 8 Ω. Fig.12 Volume gain as a function of volume steps. VP (V) Fig.13 Output power as a function of supply voltage.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 51.2 handbook, full pagewidth 51.1 top view bottom view +VP VOLUME CONTROL DOWN UP S1 S2 GND C4 C3 R1 C5 1 8 C2 OUT+ TDA8551 OUT− Vi C1 TDA 8551 AUDIO POWER CIC NIJMEGEN J1 stand-by mute operating MGM561 Dimensions in mm. Fig.16 Layout of printed-circuit board.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 PACKAGE OUTLINES SO8: plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 D E A X c y HE v M A Z 5 8 Q A2 A (A 3) A1 pin 1 index θ Lp 1 L 4 e detail X w M bp 0 2.5 5 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 1.75 0.25 0.10 1.45 1.25 0.25 0.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 DIP8: plastic dual in-line package; 8 leads (300 mil) SOT97-1 ME seating plane D A2 A A1 L c Z w M b1 e (e 1) b MH b2 5 8 pin 1 index E 1 4 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 min. A2 max. b b1 b2 c D (1) E (1) e e1 L ME MH w Z (1) max. mm 4.2 0.51 3.2 1.73 1.14 0.53 0.38 1.07 0.89 0.36 0.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control SOLDERING Several techniques exist for reflowing; for example, thermal conduction by heated belt. Dwell times vary between 50 and 300 seconds depending on heating method. Typical reflow temperatures range from 215 to 250 °C. Introduction There is no soldering method that is ideal for all IC packages.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital volume control TDA8551 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.
NXP Semiconductors Product specification 1 W BTL audio amplifier with digital 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.
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.
