TDA7286 SINGLE CHIP PREAMPLIFIER FOR DOUBLE DECK RADIO CASSETTE RECORDER HIGH OPEN-LOOP GAIN (80dB) VERY LOW INPUT NOISE LOW TURN ON/OFF POP LOW SUPPLY CURRENT PLAYBACK AMPLIFIER WITH HEAD INPUT SWITCH RECORDING AMPLIFIER WITH BUILT-IN ALC ALC TIME CONSTANT PIN CAN BE USED AS ALC SWITCH GOOD SUPPLY RIPPLE REJECTION DESCRIPTION The TDA7286 is a monolithic integrated circuit in DIP20 and SO20 packages designed for 6V, 9V and 12V AC/DC double deck cassette applications. DIP20 SO20 ORDERING NUMBERS: TDA7286 TDA7286D BLOCK DIAGRAM May 1997 1/6 TDA7286 ABSOLUTE MAXIMUM RATINGS Symbol Parameter VS Supply Voltage VIN Input DC Voltage Top Tstg, Tj Value Unit 14 V –0.4 to 0.5 V Operating Temperature –20 to 70 °C Storage & Junction Temperature –40 to 150 °C PIN CONNECTION (Top view) THERMAL DATA Symbol Rth j-amb 2/6 Parameter Thermal Resistance Junction to Ambient Max. DIP20 SO20 Unit 100 200 °C/W TDA7286 ELECTRICAL CHARACTERISTICS (VS = 6V, Tamb = 25°C; f = 1KHz; RL = 4.7kΩ; Rg = 2.2kΩ, unless otherwise specified.) Symbol Parameter VS Supply Voltage Id Quiescent Current Test Condition Min. Typ. 4 7 Max. Unit 12 V 15 mA PLAYBACK AMPLIFIER GVO Open Loop Gain VCD Output DC Voltage VO Output AC Voltage Supply Voltage Rejection SVR CT Cross Talk EN Total Output Noise RE Internal Feedback Res 80 dB 1.2 1.5 THD = 1% 700 950 f = 100Hz 35 45 dB 60 dB 300 µV 180 kΩ 80 dB R g = 0, BW = 22 to 22kHz 1.7 V mVrms RECORDING AMPLIFIER GVO Open Loop Gain Ri Input resistance 30 50 70 kΩ VDC Output DC Voltage 2.0 2.4 2.8 V VO Output AC Voltage 1 0.75 1.4 1 1.25 Vrms Vrms VO = 0.5Vrms; ALC = OFF 0.2 0.5 % THD CB SVR CT Total Harmonic Distortion THD = 1% ALC = OFF ALC = ON ALC Range ∆VO = 3dB 48 Channel Balance ALC = ON 0 Supply Voltage Rejection f = 100Hz Cross Talk f = 1KHz 28 dB 2 dB 32 dB 60 dB HEAD SELECT INPUT Input LOW Level chB selected Input HIGH level chA seleced 0.6 1.4 V V 3/6 TDA7286 SO20 PACKAGE MECHANICAL DATA DIM. mm MIN. TYP. A a1 inch MAX. TYP. 2.65 0.1 MAX. 0.104 0.3 a2 0.004 0.012 2.45 0.096 b 0.35 0.49 0.014 0.019 b1 0.23 0.32 0.009 0.013 C 0.5 0.020 c1 45 (typ.) D 12.6 13.0 0.496 0.512 E 10 10.65 0.394 0.419 e 1.27 0.050 e3 11.43 0.450 F 7.4 7.6 0.291 0.299 L 0.5 1.27 0.020 0.050 M S 4/6 MIN. 0.75 0.030 8 (max.) TDA7286 DIP20 PACKAGE MECHANICAL DATA mm DIM. MIN. a1 0.254 B 1.39 TYP. inch MAX. MIN. TYP. MAX. 0.010 1.65 0.055 0.065 b 0.45 0.018 b1 0.25 0.010 D 25.4 1.000 E 8.5 0.335 e 2.54 0.100 e3 22.86 0.900 F 7.1 0.280 I 3.93 0.155 L Z 3.3 0.130 1.34 0.053 5/6 TDA7286 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGSTHOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1997 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 6/6