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| TDA7490SA 10W +10W Stereo Class-D Amplifier Features FEATURES 10W + 10W CONTINUOUS OUTPUT POWER: RL = 8 THD = 10% HIGH EFFICIENCY SINGLE SUPPLY AND SPLIT SUPPLY OPERATION POP NOISE FREE ST-BY AND MUTE FEATURES SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION EXTERNALLY SYNCHRONIZABLE CLIPWATT 19 Description The TDA7490SA is a dual audio class-D amplifier assembled in CLIPWATT 19 package specially designed for high efficiency application mainly for TV, LCD TV and Home Stereo sets. . Order codes Part number TDA7490SA Temp range, C 0 to 70 Package CLIPWATT 19 Packing Tube November 2005 Rev 1 1/13 www.st.com 13 TDA7490SA Contents 1 Typical application and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 1.2 1.3 typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 3 Electrical characteristcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1 PCB and component layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2/13 TDA7490SA 1 Typical application and pin description 1 1.1 Typical application and pin description typical application Figure 1. typical application and test circuit for single and split supply PWM STAGE IN1 C5 1nF REFERENCE R1 27K C1 100nF 9 TRIANGLE1 R2 22K C2 330pF TRIANGLE2 R3 22K INPUT2 C4 330nF C7 330pF IN2 C6 1nF GND STBY/MUTE R4 30K 15 10 PWM STAGE 12 4 R6 10K 14 +5V REGULATOR 7 -5V 16 VREG R9 1K R10 1K -VCC/GND R5 10K -VCC/GND D99AU1066B BOOSTRAP1 3 2 1 +VCC1 C13 100nF OUT1 +VCC C16 33nF C18 560pF L1 30 C20 220nF R7 100 -VCC/GND C3 330nF INPUT1 5 (**) LOUDSPEAKER1 T2 EXTERNAL CLK DRIVER 6 1000F -VCC /GND C15 2200F 8 OSCILLATOR 17 13 18 BOOTSTRAP2 C14 2200F +VCC2 DRIVER 19 OUT2 C12 100nF C17 33nF C19 560pF -VCC/GND +VCC L2 30 C21 220nF R8 100 -VCC/GND (**) LOUDSPEAKER2 1000F (*) C8 2.2F STBY MUTE C9 100nF C10 100nF C11 100nF (*) Only for single Supply Solution (**) To add externally the PCB for Single Supply 1.2 pin description Figure 2. pin connection 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 D04AU1542 OUT2 +VCC2 BOOT2 VREG IN2 +5V TRIANGLE2 GND N.C. -VCC -VCC TRIANGLE1 -5V REFERENCE IN1 ST-BY/MUTE BOOT1 +VCC1 OUT1 3/13 TDA7490SA Table 1. N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 pin description Pin OUT 1 +VCC1 BOOT1 ST-BY/MUTE IN1 REFERENCE -5V TRIANGLE 1 -VCC -Vcc N.C. GND TRIANGLE 2 +5V IN 2 VREG BOOT 2 +VCC2 OUT 2 Ground Triangular Waveform CH2 +5V regulator Input CH2 10V Regulator Bootstrap CH2 Positive Power Supply CH2 Output CH2 Output CH1 Positive Power Supply CH1 Bootstrap CH1 State Pin Input CH1 Master Oscillator Setting Frequency -5V Regulator Triangular Waveform CH1 Negative Power Supply (Signal Ground) Negative Power Supply (Power Ground) connected to tab Function 1.3 thermal data Table 2. Symbol Rth j-case Rth j-amb thermal data Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient Test Condition Typ. 2 Max. 3 48 Unit C/W C/W 4/13 TDA7490SA 2 Electrical characteristcs 2 Table 3. Electrical characteristcs electrical characteristcs (Refer to the test circuit, VCC = 13.5V; RL = 8; Demod. filter L = 33 H, C = 220nF; f = 1KHz; R1 = 27k; Tamb = 25C unless otherwise specified.) Parameter Supply Range Total Quiescent Current Output Offset Voltage THD = 10% THD = 1% VCC = 10V; RL = 4 Po Output Power THD = 10% THD = 1% VCC = 6V; RL = 4 THD = 10% THD = 1% PD h THD Imax Tj GV GV eN CT Ri SVR Vrmax Tr, Tf Maximum Dissipated Power Efficiency (1) Total Harmonic Distortion Overcurrent Protection Threshold Thermal Shut-down Junction Temperature Closed Loop Gain Gain Matching Total Input Noise Cross Talk Input Resistance Supply Voltage Rejection Overvoltage Protection Threshold Rising and Falling Time Power Transistor on Resistance Switching Frequency Internal Oscillator 180 f = 100Hz; Vr = 0.5 30 50 0.3 200 220 A Curve f = 20Hz to 22KHz f = 1KHz -1 7 12 t.b.d. 30 60 Po = 10+10W; THD = 10% Po = 10+10W; RL = 8 RL = 8; Po = 0.5W RL = 0 2 86 0.1 2.5 150 30 1 4 3 3.5 W W W % % A C dB dB V V dB k dB V ns W KHz 10 8 W W RL = ; no LC filter -150 10 8.2 Test Condition Min. 7 60 +150 Typ. Max. 15 Unit V mA mV W W Symbol VS Iq VOS RDSON FSW 5/13 2 Electrical characteristcs TDA7490SA Table 3. electrical characteristcs (Refer to the test circuit, VCC = 13.5V; RL = 8; Demod. filter L = 33 H, C = 220nF; f = 1KHz; R1 = 27k; Tamb = 25C unless otherwise specified.) Parameter Output Switching Frequency Range Test Condition with Internal Oscillator (2) with external Oscillator (3) Min. 140 100 Typ. Max. 250 250 Unit KHz KHz Symbol FSWR MUTE & STAND-BY FUNCTIONS VST-BY VMUTE VPLAY AMUTE IqST-BY Stand-by range Mute Range Play Range Mute Attenuation Quiescent Current @ Stand-by 0 1.7 4 60 1.5 2 0.7 2.5 5 V V V dB mA Note: 1 : PO = measured across the load using the following inductor: SUMIDA RCH-108-330K -----------2 : Fsw = 4810 + 23 with R1 in K; Fsw in KHz R1 R1 3 : Fsw = F sw = -- F est with Fext, the frequency of the external oscillator 4 1 Figure 3. TH (% D) 10 5 distortion vs output power Figure 4. Po(W ) 14 output Power vs Supply Voltage (single) Vs =27V 12 10 8 2 1 0.5 0.2 0.1 0.05 Rl = 8 ohm f = 1KHz R =8 ohm l F=1K z H THD=10% 6 4 THD=1% 2 0.02 0.01 100m 200m 500m 1 Pout(W ) 2 5 10 20 0 +14 +16 +18 +20 +22 Vs (V) +24 +26 +28 +30 6/13 TDA7490SA Figure 5. Po(W ) 14 12 10 8 TH =10% D R = 6 ohm l f = 1K z H 2 Electrical characteristcs output power vs supply voltage (single) Figure 6. Pd(W) dissipated power vs output power 3.5 3 2.5 Vs =+/- 13.5V 6 TH =1% D 2 1.5 1 +16 +18 +20 Vs (V) +22 +24 +26 Rload = 8ohm (both ch) f = 1KHz 4 2 0 +14 0 2 4 6 2 x Po(W) 8 10 12 Figure 7. Po(W ) 12 10 8 6 output power vs supply voltage (single) Figure 8. quiescent current vs supply voltage Iq(mA) 70 Rl = 4 ohm f = 1KHz THD=10% 65 60 55 Rl = No load No LC filter THD=1% 4 2 0 +14 50 45 40 +15 +16 +17 +18 +19 +20 +21 +22 7 8 9 10 Vs (V) Vs=(+/-V) 11 12 13 14 15 Figure 9. TH (% D) distortion vs output power 10 Vs = +/- 13.5V 1 R = 8 ohm l F = 1K z H 0.1 0.01 100m 200m 500m 1 Pout(W ) 2 5 10 7/13 2 Electrical characteristcs TDA7490SA Figure 10. turn on/off suggested sequence +VS (V) 13.5 t -VS -13.5 VIN (mV) Vpin4 (V) 4 1.7 0.7 Iq (mA) VOUT (V) STDBY PLAY STDBY MUTE D03AU1566 MUTE 8/13 TDA7490SA 3 PCB 3 3.1 PCB PCB and component layout Figure 11. PCB component layout of the test circuit Figure 12. PCB copper bottom (top view) 9/13 3 PCB TDA7490SA Figure 13. PCB copper top (top view) 10/13 TDA7490SA 4 Package information 4 Package information In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 14. clipwatt19 mechanical data & package dimensions mm DIM. MIN. A B C D E F F1 G G1 H1 H2 H3 L L1 L2 L3 M M1 10.7 19.85 17.9 14.55 11.0 5.50 2.54 2.54 11.2 0.421 0.87 17.87 1.00 18.0 12.0 18.6 0.781 0.704 0.572 0.433 0.217 0.100 0.100 0.441 0.49 0.47 0.50 0.15 1.50 0.55 0.58 0.1 1.13 18.13 0.034 0.703 0.039 0.708 0.480 0.732 0.019 0.018 TYP. MAX. 3.2 1.05 0.006 0.061 0.022 0.020 0.004 0.044 0.713 MIN. TYP. MAX. 0.126 0.041 inch OUTLINE AND MECHANICAL DATA Clipwatt19 7390917 A 11/13 5 Revision history TDA7490SA 5 Revision history Date 24-Nov-2005 Revision 1 Initial release. Changes 12/13 TDA7490SA Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners (c) 2005 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 13/13 |
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