TDA7297, 规格书,Datasheet 资料.pdfVIP

TDA7297 15+15W DUAL BRIDGE AMPLIFIER WIDE SUPPLY VOLTAGE RANGE (6V -18V) MINIMUM EXTERNAL COMPONENTS – NO SVR CAPACITOR – NO BOOTSTRAP – NO BOUCHEROT CELLS – INTERNALLY FIXED GAIN STAND-BY MUTE FUNCTIONS SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION DESCRIPTION The TDA7297 is a dual bridge amplifier specially designed for TV and Portable Radio applications. September 2003 ? 1 2 4 Vref ST-BY 7 IN1 0.22μF VCC 133 D94AU175B + - - + OUT1+ OUT1- 15 14 12 MUTE 6 IN2 0.22μF + - - + OUT2+ OUT2- 8 9 S-GND PW-GND 470μF 100nF BLOCK AND APPLICATION DIAGRAM Multiwatt 15 ORDERING NUMBER: TDA7297 TECHNOLOGY BI20II 1/9 芯天下--/ 12 3 4 5 6 7 9 10 11 8 N.C. N.C. S-GND PW-GND ST-BY MUTE N.C. IN1 V CC OUT1- OUT1+ 13 14 15 12 OUT2+ OUT2- VCC IN2 D95AU261 PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS Supply Voltage 20 V IO Output Peak Current (internally limited) 2 A Ptot Total Power Dissipation (Tcase = 70°C) 33 W Top Operating Temperature 0 to 70 °C Tstg, Tj Storage and Junction Temperature -40 to +150 °C THERMAL DATA Symbol Description Value Unit Rth j-case Thermal Resistance Junction to case Typ. 1.4 Max. 2 °C/W ELECTRICAL CHARACTERISTICS (VCC = 16.5V, RL = 8?, f = 1kHz, Tamb = 25°C unless otherwise specified.) Symbol Parameter Test Condition Min. Typ. Max. Unit VCC Supply Range 6.5 18 V Iq Total Quiescent Current RL = ∞ 50 65 mA VOS Output Offset Voltage 120 mV PO Output Power THD = 10% 13 15 W THD Total Harmonic Distortion PO = 1W 0.1 0.3 % PO = 0.1W to 5W f = 100Hz to 15kHz 1 % SVR Supply Voltage Rejection f = 100Hz VR = 0.5V 40 56 dB CT Crosstalk 46 60 dB AMUTE Mute Attenuation 60 80 dB TW Thermal Threshold 150 °C GV Closed Loop Voltage Gain 31 32 33 dB ?Gv Voltage Gain Matching 0.5 dB Ri Input Resistance 25 30 K? TDA7297 2/9 芯天下--/ 12 4 Vref ST-BY 7 IN1 C1 0.22μF VCC 133 D95AU258A + - - + OUT1+ OUT1- 15 14 12 MUTE 6 IN2 C3 0.22μF + - - + OUT2+ OUT2- 8 9 S-GND PW-GND C5 470μF C6 100nF R1 10K C2 10μF μP R2 10K C4 1μF F