|Category||Multimedia => Audio|
|Company||ST Microelectronics, Inc.|
|Datasheet||Download TDA7494S datasheet
10W OUTPUT POWER 8, @ THD = 10% VCC = 28V ST-BY AND MUTE FUNCTIONS NO BOUCHEROT CELL NO ST-BY RC INPUT NETWORK SINGLE SUPPLY RANGING TO 35V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING LOW TURN-ON TURN-OFF POP NOISE MULTIWATT 15 PACKAGEDESCRIPTION The 10W is class AB power amplifier assembled in the @Multiwatt 15 package, spe-
cially designed for high quality sound, TV applications. Features of the TDA7494S include Stand-by and mute functions.
Symbol VS VIN Ptot Tamb Tstg, Tj DC Supply Voltage Maximum Input Voltage Total Power Dissipation (Tamb = 70°C) Ambient Operating Temperature Range (1) Storage and Junction Temperature Parameter Value to 150 Unit V Vpp W °C
(1) Operation between 85 °C guaranteed by correlation with 70°C. (2) Pin 3 is ESD sensitive (max. voltage ±1.5KV)
Symbol Rth j-case Rth j-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient max Value Typ 3.8 35 Max = 4.8 Unit °C/W
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, = 50; Tamb = 25°C; unless otherwise specified.)
Symbol VS Iq DCVOS VO PO Parameter Supply Voltage Range Total Quiescent Current Output DC Offset Referred to SVR Potential Quiescent Output Voltage Output Power No Input Signal = 21V THD = 10%; VCC = 8 THD = 1%; VCC = 28V THD = 10%; VCC = 21V, THD = 1%; VCC = 21V, THD = 10%; VCC = 4 THD = 1%; VCC = 21V, THD = 10%; VCC = 18V, THD = 1%; VCC = 18V THD = 10%; VCC = 8 THD = 1%; VCC = 18V THD Ipeak Top Vin BW eN Total Output Noise to 22KHz Play to 22KHz Mute SR Ri SVR TM Ts VST-BY VMUTE IqST-BY AMUTE IstbyBIAS Slew Rate Input Resistance Supply Voltage Rejection Thermal Muting Thermal Shut-down Stand-by threshold Mute Threshold Quiescent Current @ Stand-by Mute Attenuation Stand-by bias current Stand by on; VST-BY = 5V; VMUTE = 5V; Play or Mute ImuteBIAS Mute bias current Mute Play = 1kHz; CSVR = 470µA; VRIP 22.5 36 Total Harmonic Distortion Output Peak Current Operating Temperature Input Signal Closed Loop Gain = 26dB (internally limited) Test Condition Min. 11 22 Typ. Max. Unit mV °C Vrms dB MHz µV V/µs dB µA
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