LINEAR INTEGRATED CIRCUIT

www.DataSheet4U.com @vic AV2030 LINEAR INTEGRATED CIRCUIT 14W HI-FI AUDIO AMPLIFIER DESCRIPTION The AVIC AV2030 is a monolithic audio power amplifier integrated circuit. 1 TO-220B FEATURES *Very low external component required. *High current output and high operating voltage. *Low harmonic and crossover distortion. *Built-in Over temperature protection. *Short circuit protection between all pins. *Safety Operating Area for output transistors. 1 TO-220-5 PIN CONFIGURATIONS 1 2 3 4 5 Non inverting input Inverting input -VS Output +VS ABSOLUTE MAXIMUM RATINGS(Ta=25°C) PARAMETER Supply Voltage Input Voltage Differential Input Voltage Peak Output Current(internally limited) Total Power Dissipation at Tcase=90°C Storage Temperature Junction Temperature SYMBOL Vs Vi Vdi Io Ptot Tstg Tj VALUE +-18 Vs +-15 3.5 20 -40~+150 -40~+150 UNIT V V V A W °C °C ELECTRICAL CHARACTERISTICS(Refer to the test circuit, Vs =+-16V,Ta=25°C) PARAMETER Supply Voltage Quiescent Drain Current Input Bias Current Input Offset Voltage Input Offset Current SYMBOL Vs Id Ib Vos Ios TEST CONDITIONS MIN +-6 TYP 40 0.2 +-2 +-20 MAX +-18 60 2 +-20 +-200 UNIT V mA µA MV NA Vs=+-18v QW-R107-004,B www.DataSheet4U.com @vic AV2030 LINEAR INTEGRATED CIRCUIT d=0.5%,Gv=30dB f=40 to 15,000Hz (Continued) Output Power Po d=10%,Gv=30dB f=1KHz RL=4Ω RL=8Ω 12 8 14 9 W W Power Bandwidth Open Loop Voltage Gain Closed Loop Voltage Gain Distortion B Gvo Gvc d RL=4Ω RL=8Ω Po=12W,RL=4Ω, Gv=30dB 18 11 10~140,000 90 29.5 30 0.2 0.1 3 80 5 50 30 .5 0.5 0.5 10 200 W W Hz dB dB % % µV pA MΩ dB f=1kHz Po=0.1 to 12W,RL=4Ω f=40 to 15,000Hz, Gv=30dB Po=0.1 to 8W,RL=8Ω f=40 to 15,000Hz, Gv=30dB B= 22Hz to 22kHz B= 22Hz to 22kHz Input Noise Voltage Input Noise Current Input Resistance(pin 1) Supply Voltage Rejection Thermal Shut-Down Junction Temperature eN iN Ri SVR 0.5 RL=4Ω,Gv=30dB Rg=22kΩ,fripple=100Hz, Vripple=0.5Veff 40 Tj 145 °C QW-R107-004,B www.DataSheet4U.com @vic AV2030 LINEAR INTEGRATED CIRCUIT TEST CIRCUIT +Vs C5 100 µF C3 100nF D1 1N4001 Vi C1 1 µF 1 R3 22kΩ 5 UTC TDA2030 3 R5 4 C8 R4 1Ω RL 2 R3 680Ω C2 22 µF C6 100 µF D1 R1 22kΩ 1N4001 C4 C7 100nF 220nF -Vs APPLICATION CIRCUIT +Vs C5 220 µF C3 100nF D1 1N4001 Vi C1 1 µF 1 R3 22kΩ 5 UTC TDA2030 3 4 R4 1Ω RL 2 R1 13kΩ D1 1N4001 R3 680Ω C2 22 µF C6 100 µF C4 C7 100nF 220nF -Vs QW-R107-004,B www.DataSheet4U.com @vic Gv (dB) AV2030 Fig.2 Open loop frequency response 140 LINEAR INTEGRATED CIRCUIT Fig.3 Output power vs. Supply voltage Phase 180 TYPICAL PERFORMANCE CHARACTERISTICS Po (W) 24 Gv=26dB d=0.5% f=40 to 15kHz RL=4Ω Phase 100 90 20 60 0 16 RL=8Ω Gain 20 12 -20 8 -60 1 10 2 10 3 10 4 10 Frequency (Hz) 5 10 6 10 7 10 4 24 28 32 36 Vs (V) 40 44 Fig.4 Total harmonic distortion vs. output power d (%) 2 10 Fig.5 Two tone CCIF intermodulation distortion d (%) 2 10 Po (W) 1 10 Gv=26dB 1 10 0 10 Vs=38V RL=8Ω f=15kHz Vs=32V RL=4Ω f=1kHz 0 10 Vs=32V Po=4W RL=4Ω Gv=26dB Order (2f1-f2) Order (2f2-f1) -1 10 -1 10 -2 10 -2 10 -1 10 0 10 1 10 Po (W) 2 10 -2 10 1 10 2 10 3 10 Frequency (Hz) 4 10 5 10 Fig.6 Large signal frequency response Vo (Vp-p) 30 Fig.7 Maximum allowable power dissipation vs. ambient temperture Ptot (W) 30 25 Vs=+-15V RL=8Ω Vs=+-15V RL=4Ω 25 20 20 ink a ts he te ini g inf vin ha /W ink ats 5°C he ty=2 R 15 15 10 10 he a Rt tsin h= k 4° ha C/ vin he Wg at Rt sink h= ha 8°C vin /W g 5 1 10 2 10 Frequency (kHz) 3 10 4 10 5 -50 0 50 100 150 200 Tamb (°C) QW-R107-004,B www.DataSheet4U.com @vic Vi AV2030 C3 0.22 µF LINEAR INTEGRATED CIRCUIT +Vs C5 220 µF /40V 1 R3 56kΩ 1N4001 C1 2.2 µF R1 56kΩ R6 1.5Ω BD908 5 C6 0.22 µF UTC TDA2030 3 R5 30kΩ R7 1.5Ω 4 1N4001 C8 2200 µF C2 22 µF R2 56kΩ 2 R8 1Ω RL=4Ω C7 0.22 µF MAX 44 R4 3.3kΩ C4 10 µF BD907 Fig. 8 Single supply high power amplifier(UTC TDA2030+BD908/BD907) TYPICAL PERFORMANCE OF THE CIRCUIT OF FIG. 8 PARAMETER Supply Voltage Quiescent Drain Current SYMBOL Vs Id TEST CONDITIONS Vs=36V d=0.5%,RL=4Ω f=40Hz to 15kHz,Vs=39V d=0.5%,RL=4Ω f=40Hz to 15kHz,Vs=36V d=0.5%,f=1kHz, RL=4Ω,Vs=39V d=0.5%,RL=4Ω f=1kHz,Vs=36V f=1kHz Po=20W,f=1kHz Po=20W,f=40Hz to 15kHz Gv=20dB,Po=20W, f=1kHz,RL=4Ω RL=4Ω,Rg=10kΩ B=curve A,Po=25W RL=4Ω,Rg=10kΩ B=curve A,Po=25W MIN TYP 36 50 35 28 UNIT V mA Output Power Po W 44 35 19.5 20 8 0.02 0.05 890 20.5 dB V/µsec % % mV Voltage Gain Slew Rate Total Harmonic Distortion Input Sensitivity Gv SR d Vi Signal to Noise Ratio S/N 108 100 dB QW-R107-004,B www.DataSheet4U.com @vic Po (W) AV2030 Fig. 10 Output power vs. supply voltage LINEAR INTEGRATED CIRCUIT Fig. 11 Total harmonic distortion vs. output power d (%) Vs=36V RL=4Ω Gv=20dB TYPICAL PERFORMANCE CHARACTERISTICS 45 0 10 35 25 -1 10 f=15kHz 15 f=1kHz 5 24 28 32 34 36 Vs (V) 40 -2 10 -1 10 0 10 1 10 Po (W) Fig. 12 Output power vs. Input level Po (W) Ptot (W) 20 Fig. 13 Power dissipation vs. output power 20 Gv=26dB 15 15 Complete Amplifier Gv=20dB 10 10 BD908/ BD907 UTC TDA2030 5 5 0 100 250 400 550 700 Vi (mV) 0 0 8 16 24 32 Po (W) QW-R107-004,B www.DataSheet4U.com @vic AV2030 LINEAR INTEGRATED CIRCUIT +Vs C5 100 µF C3 100nF D1 1N4001 Vi C1 1 µF 1 R3 22kΩ 5 UTC TDA2030 3 R5 4 C8 R4 1Ω RL 2 R3 680Ω C2 22 µF C6 100 µF D2 R1 22kΩ 1N4001 C4 C7 100nF 220nF -Vs Fig. 14 Typical amplifier with split power supply Vs+ C6 100 µ F C1 220 µ F C7 100nF 1 2 5 µ F 0.22 C8 R8 1Ω IN R1 22kΩ UTC TDA2030 4 3 R3 22kΩ C4 22 µ F R4 680Ω R7 22kΩ RL 8Ω 1 R2 22kΩ 5 µ F 0.22 C9 UTC TDA2030 4 2 3 R5 22kΩ C5 22 µ F VsC2 100 µ F C3 100nF R9 1Ω R6 680Ω Fig. 16 Bridge amplifier with split power supply(Po=34W,Vs+=16V,Vs-=16V) QW-R107-004,B www.DataSheet4U.com @vic AV2030 LINEAR INTEGRATED CIRCUIT MULTIWAY SPEAKER SYSTEMS AND ACTIVE BOXES Multiway loudspeaker systems provide the best possible acoustic performance since each loudspeaker is specially designed and optimized to handle a limited range of frequencies. Commonly, these loudspeaker systems divide the audio spectrum two or three bands. To maintain a flat frequency response over the Hi-Fi audio range the bands cobered by each loudspeaker must overlap slightly. Imbalance between the loudspeakers produces unacceptable results therefore it is important to ensure that each unit generates the correct amount of acoustic energy for its segments of the audio spectrum. In this respect it is also important to know the energy distribution of the music spectrum to determine the cutoff frequencies of the crossover filters(see Fig. 18).As an example,1 100W three-way system with crossover frequencies of 400Hz and 3khz would require 50W for the woofer,35W for the midrange unit and 15W for the tweeter. Both active and passive filters can be used for crossovers but active filters cost significantly less than a good passive filter using aircored inductors and non-electrolytic capacitors. In addition active filters do not suffer from the typical defects of passive filters: --Power less; --Increased impedance seen by the loudspeaker(lower damping) --Difficulty of precise design due to variable loudspeaker impedance. Obviously, active crossovers can only be used if a power amplifier is provide for each drive unit. This makes it particularly interesting and economically sound to use monolithic power amplifiers. In some applications complex filters are not relay necessary and simple RC low-pass and high-pass networks(6dB/octave) can be recommended. The result obtained are excellent because this is the best type of audio filter and the only one free from phase and transient distortion. The rather poor out of band attenuation of single RC filters means that the loudspeaker must operate linearly well beyond the crossover frequency to avoid distortion. A more effective solution, named "Active power Filter" by SGS is shown in Fig. 19. The proposed circuit can realize combined power amplifiers and 12dB/octave or 18dB octave high-pass or low-pass filters. In proactive, at the input pins amplifier two equal and in-phase voltages are available, as required for the active filter operations. The impedance at the Pin(-) is of the order of 100Ω,while that of the Pin (+) is very high, which is also what was wanted. Fig. 18 Power distribution vs. frequency 100 Fig. 19 Active power filter 80 IEC/DIN NOISE SPECTRUM FOR SPEAKER TESTING C1 C2 C3 Morden Music Spectrum Vs+ RL 60 R1 R2 R3 3.3kΩ 40 Vs100Ω 20 0 1 10 2 10 3 10 4 10 5 10 QW-R107-004,B www.DataSheet4U.com @vic AV2030 LINEAR INTEGRATED CIRCUIT The components values calculated for fc=900Hz using a Bessel 3rd Sallen and Key structure are: C1=C2=C3=22nF,R1=8.2KΩ,R2=5.6KΩ,R3=33KΩ. Using this type of crossover filter, a complete 3-way 60W active loudspeaker system is shown in Fig. 20. It employs 2nd order Buttherworth filter with the crossover frequencies equal to 300Hz and 3kHz. The midrange section consistors of two filters a high pass circuit followed by a low pass network. With Vs=36V the output power delivered to the woofer is 25W at d=0.06%( 30W at d=0.5%).The power delivered to the midrange and the tweeter can be optimized in the design phase taking in account the loudspeaker efficiency and impedance(RL=4Ω to 8Ω). It is quite common that midrange and tweeter speakers have an efficiency 3dB higher than woofers. Vs+ 0.22 µF Low-pass 300Hz IN 680Ω 2200 µF 1 µF 22kΩ 22kΩ 1 18nF 5 0.22 µF 1N4001 1.5Ω BD908 33nF 2 UTC TDA2030 4 2200 µF 1Ω 22kΩ 3 1.5Ω 100 µF BD907 3.3kΩ 1N4001 0.22 µF 100Ω Woofer Band-pass 300Hz to 3kHz 0.1 µF 0.1 µF 22kΩ 22kΩ Vs+ 0.22 µF 1N4001 1 18nF 5 UTC TDA2030 3.3kΩ 6.8kΩ 4 1Ω 220 µF 3.3nF 2 1N4001 100 µF 0.22 µF 2.2kΩ Midrange 100Ω Vs