TDA7212 LOW VOLTAGE FM XTAL CONTROLLED FRONT-END .. . .. ADVANCE DATA RF PREAMPLIFIER BALANCED MIXER XTAL CONTROLLED OSCILLATOR (fundamental and overtone) LOW OSCILLATOR RADIATION HIGH SIGNAL HANDLING DIP8 (Plastic Package) DESCRIPTION The TDA7212 is a monolithic integrated circuit in a 8 pin minidip package designed for general purpose XTAL controlled FM front-end up to 140MHz. ORDER CODE : TDA7212 PIN CONNECTIONS RF INPUT 1 8 SUP PLY VOLTAGE SUPPLY VOLTAGE 2 7 XTAL RF TUNING 3 6 OSC ILLATOR GND 4 5 IF OUTPUT 7 212-01.EPS BLOCK DIAGRAM +V S OUT 3 RL = 300Ω 2 5 REF RF IN 1 7 4 8 6 XTAL +V S August 1992 7 212-02.EPS 1/4 This is advance info rmation on a new product now in development or undergoing evaluation. Details are subject to change without notice. TDA7212 ABSOLUTE MAXIMUM RATINGS VS Supply Voltage P tot Total Power Dissipation a t Tamb < 70oC T oper T stg , Tj Value Operating Tem pera ture Storage and Junction Temperature Unit 7 V 400 mW -20 , +85 o -40, +150 o C C THERMAL DATA Symbol R th (j-a) Parameter Value Junction-am bient Thermal Resistance Max. Unit o 200 C/ W 7212-01.TBL Parameter 7212-02.TBL Symbol ELECTRICAL CHARACTERISTICS o (VS = 3V, Tamb = 25 C unless otherwise specified - Refer to the Test Circuit) Test Conditions Min. Typ. Max. 6 Unit VS Supply Voltage 3 IS Supply Current 3 mA 200 mV RMS 40 dB 1.2 V VOSC G V off Local Oscillator Voltage (Pin 6) Voltage Gain f = 49MHz, RIN = 75Ω, ROUT = 300Ω Local Oscillator Stop Voltage V TYPICAL DC VOLTAGES (Refer to the Test Circuit) Pins (V) 1 2.3 2 3 4 5 6 7 8 3 3 0 3 2.1 2.9 3 TEST CIRCUIT C2 22nF C3 22nF C6 15pF L2 C7 39pF L3 +V S C5 22nF XTAL 39.16 MHz C4 47pF 2 IN 49.86kHz 3 6 C1 2.2nF FM2 7 8 OUT 10.7MHz 5 1 TDA7212 4 L2 = L3 = TOKO E521LN 110033 7212-03.EPS 2/4 7212-03.TBL Parameter 7212-04.TBL Symbol TDA7212 FRONT-END CORDLESS APPLICATION 22nF +V S 22nF 22nF 1 18pF L2 38.3 MHz 39pF L3 2 49MHz IN 3 2 3.3pF 3 47pF 6 FM2 7 8 SFE 10.7 OUT 15kΩ 300Ω 5 15pF L1 1 390pF TDA7212 4 L1 = L3 = TOKO E521LN 110033 7212-04 NB. : In this application it is advisable to decrease the gain of the front-end through a tapping on the L2 coil (3 turns of 12). So it can be obtained: better selectivity, improve d intermodulation performance, better match ing with the following block that are IC’s design ed for double conversion radio receivers. 3/4 TDA7212 PACKAGE MECHANICAL DATA 8 PINS - PLASTIC DIP B I L a1 A e4 b1 B1 b E e e3 Z Z D 5 1 4 F 8 PM-DIP8.EPS Millimeters Typ. Max. Min. 3.32 Inches Typ. Max. A a1 0.51 B b b1 1.15 0.356 0.204 1.65 0.55 0.304 0.045 0.014 0.008 0.065 0.022 0.012 D E 7.95 10.92 9.75 0.313 0.430 0.384 e e3 e4 0.020 2.54 7.62 7.62 F i L Z 0.131 0.100 0.300 0.300 6.6 5.08 3.18 3.81 1.52 0260 0.200 0.125 0.150 0.060 Information furnished is believed to be accurate and reliable. However, S GS-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. N o licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. S pecifica tions mentioned in this publication are subject to change without notice. This publication supe rsedes and replaces all inform ation previously supplied. SGS-TH OMSON Microelectronics products are not authorized for use as critical components in life s upport devices or systems without express written approval of S GS-THOMSON Microelectronics. 1992 SGS-THOMSON Microelectronics - A ll Rights R eserved SGS-THOMSON Microelectronics GROUP OF C OMPANIES Australia - Brazil - China - France - Germa ny - Hong Kong - Italy - Japan - K orea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sw eden - Switzerland - Taiwan - U nited Kingdo m - U .S.A. 4/4 DIP8.TBL Min. ORDER CODE : Dimensions