TA2078P TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2078P Preset Equalizer IC TA2078P is a 3 mode preset equalizer IC. This IC have built-in one middle boost and two type high/low boost equalizers and flat mode. These operation mode are controled by internal switch. Features · Dual channel · 3 mode preset equalizer 1) Middle boost 2) High/Low boost-1 3) High/Low boost-2 4) Flat (No equalizing) · Few external parts · Dual inline package 16 pin · Operating supply voltage range : VCC (opr) = 7.5~14.0 V (Ta = 25°C) Weight: 1.00 g (typ.) 1 2002-03-05 TA2078P Block Diagram 2 2002-03-05 TA2078P Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Supply voltage VCC 14 V Power dissipation PD (Note) 750 mW Operating temperature Topr −25~75 °C Storage temperature Tstg −55~150 °C Note: Derated above Ta = 25°C in the proportion of 6 mW/°C. Electrical Characteristics (unless otherwise specified, VCC = 10 V, Rg = 620 Ω, RL = 10 kΩ, f = 1 kHz, Normal Mode, Ta = 25°C) Symbol Test Circuit Test Condition Min Typ. Max Unit VCC ― ― 7.5 ― 14.0 V ICCQ1 ― Normal mode (A = L, B = L) ― 2.5 5.0 ICCQ2 ― Rock mode (A = H, B = L) ― 4.2 9.0 ICCQ3 ― Classic mode (A = L, B = H) ― 4.6 9.0 ICCQ4 ― Pop mode (A = H, B = H) ― 4.5 9.0 Voltage gain GV ― 12.0 14.0 16.0 dB Maximum output voltage Vom ― THD = 1% 2.5 3.0 ― Vrms Total harmonic distortion THD ― Vin = 200 mVrms ― 0.01 0.1 % Ripple rejection ratio R.R. ― Vrip = 300 mVrms, frip = 100 Hz ― −56 ― dB Cross talk C.T. ― Vin = 350 mVrms ― −70 −60 dB Output noise voltage Vno ― Rg = 620 Ω, DIN AUDIO filter ― 20 30 µVrms Characteristics Operating voltage Quiescent current ― mA Control Switch Voltage Control Voltage for 10/9 pin “H” Input 2.0 V~VCC “L” Input 0~0.8 V or Open Operation Mode A (10 pin) B (9 pin) Boost Frequency Normal L L Flat (No equalizing) Rock H L High/Low boost-1 Classic L H High/Low boost-2 Pop H H Mid boost 3 2002-03-05 TA2078P Test Circuit 4 2002-03-05 TA2078P 5 2002-03-05 TA2078P Package Dimensions Weight: 1.00 g (typ.) 6 2002-03-05 TA2078P RESTRICTIONS ON PRODUCT USE 000707EBA · TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc.. · The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer’s own risk. · The products described in this document are subject to the foreign exchange and foreign trade laws. · The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. · The information contained herein is subject to change without notice. 7 2002-03-05