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| TDA3190 COMPLETE TV SOUND CHANNEL The TDA3190 is a monolithic integrated circuit in a 16-lead dual in-line plastic package. It performs all the functions needed for the TV sound channel : IF LIMITER AMPLIFIER ACTIVE LOW-PASS FILTER FM DETECTOR DC VOLUME CONTROL AF PREAMPLIFIER AF OUTPUT STAGE . . . . . . DESCRIPTION The TDA3190 can give an output power of 4.2 W (d = 10 %) into a 16 load at VS = 24 V, or 1.5 W (d = 10 %) into an 8 load at VS = 12 V. This performance, together with the FM-IF section characteristics of high sensitivity, high AM rejection and low distortion, enables the device to be used in almost every type of television receivers. The device has no irradiation problems, hence no external screening is needed. The TDA3190 is a pin to pin replacement of TDA1190Z. PIN CONNECTIONS DIP16 (Plastic Package) ORDER CODE : TDA3190 IF INPUT IF DECOUPLING IF DECOUPLING GROUND GROUND FM DETECTOR FM DETECTOR DC VOLUME CONTROL 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 DE-EMPHASIS RIPPLE REJECTION SUPPLY VOLTAGE GROUND GROUND AF OUTPUT COMPENSATION AF FEEDBACK 3190-01.EPS December 1992 1/9 TDA3190 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol VS Vi Io Io Ptot Tstg, Tj Parameter Supply Voltage (pin 10) Input Signal Voltage (pin 1) Output Peak Current (non-repetitive) Output Peak Current (repetitive) Power Dissipation at Tpins = 90 C at Tamb = 70 C (free air) Storage and Junction Temperature Value 28 1 2 1.5 4.3 1 - 40 to 150 Unit V V A A W W C THERMAL DATA Symbol Rth j-pins R th j-amb Max Max 3190-02.TBL 3190-03.TBL Parameter Thermal Resistance Junction-pins Thermal Resistance Junction-ambient Value 14 80* Unit C/W C/W * Obtained with the GND pins soldered to printed circuit with minimized copper area. ELECTRICAL CHARACTERISTICS (refer to the test circuit, VS = 24V, Tamb = 25oC unless otherwise specified) Symbol Vs Vo Id Parameter Supply Voltage (Pin 14) Quiescent Output Voltage (Pin11) Quiescent Drain Current Test Conditions Vs = 24V Vs = 12V P1 = 22k Vs = 24V Vs = 12V Min. 9 11 5.1 11 Typ. 12 6 22 19 Max. 28 13 6.9 45 40 Unit V V V mA mA 2/9 3190-01.TBL 3190-02.EPS TDA3190 ELECTRICAL CHARACTERISTICS (refer to the test circuit, VS = 24V, Tamb = 25oC unless otherwise specified) Symbol Po Parameter Output Power Test Conditions d = 10%, fm = 400Hz, fo = 4.5MHz, f = 25kHz Vs = 24V, RL = 16 Vs = 12V, RL = 8 d = 2%, fm = 400Hz, fo = 4.5MHz, f = 25kHz Vs = 24V, RL = 16 Vs = 12V, RL = 8 fo = 4.5MHz, f = 7.5kHz, fm = 400Hz, P1 = 0 Po = 50mW, fm = 400Hz, fo = 4.5MHz, f = 7.5kHz Vs = 24V, RL = 16 Vs = 12V, RL = 8 R L = 16, C8 = 120pF C 7 = 470pF, P1 = 22k R f = 82 R f = 47 Vi 1mV, fo = 4.5MHz fm = 400Hz, f = 7.5kHz, P1 = 0 Vi 1mV, fo = 4.5MHz, fm = 400Hz, f = 25kHz, m = 0.3 VI 1mV, Vo = 4V, fo = 4.5MHz, fm = 400Hz, f = 25kHz Min. Typ. Max. Unit 4.2 1.5 W W 3.5 1.4 40 100 W W V Vi d Input Limiting Voltage (-3dB) atPin 1 Distortion 0.75 1 % % B Frequency Response of audio amplifier (-3dB) 70 to 1200 70 to 7000 120 55 50 65 25 Hz Hz mV dB dB k k pF dB dB Vo AMR S+N N R3 Ri Ci SVR Av Recovered Audio Voltage (Pin16) Ampliture Modulation Rejection Signal to Noise Ratio External Feedback Resistance (betweenPins9and11) Input Resistance (Pin1) Input Capacitance (Pin1) Supply Voltage Rejection DC Volume Control Attenuation Vi = 1mV, fo = 4.5MHz R L = 16, fripple = 120Hz, P1 = 22k P1 = 12k 90 TYPICAL CIRCUIT 3/9 3190-03.EPS 3190-04.TBL 30 5 46 TDA3190 Figure 1 : Relative Audio Output Voltage and Output Noise versus Input Signal Figure 2 : Output Voltage Attenuation versus DC Volume Control Resistance 3190-04.EPS Figure 3 : Amplitude Modulation Rejection versus Input Signal Figure 4 : AMR versus Tuning Frequency Change 3190-06.EPS Figure 5 : Recovered Audio Voltage versus Unloaded Q Factor of the Detector Coil Figure 6 : Distortion versus Output Power 3190-08.EPS 4/9 3190-09.EPS 3190-07.EPS 3190-05.EPS TDA3190 Figure 7 : Distortion versus Frequency Deviation Figure 8 : Distortion versus Tuning Frequency Change 3190-10.EPS Figure 9 : Audio Amplifier Frequency Response Figure 10 : Supply Voltage Ripple Rejection versus Ripple Frequency 3190-12.EPS Figure 11 : Supply Voltage Ripple Rejection versus Volume Control Attenuation Figure 12 : Output Power versus Supply Voltage 3190-14.EPS 5/9 3190-15.EPS 3190-13.EPS 3190-11.EPS TDA3190 Figure 13 : Maximum Power Dissipation versus Supply Voltage (sinewave operation) Figure 14 : Power Dissipation and Efficiency versus Output Power 3190-16.EPS Figure 15 : Quiescent Output Voltage (Pin 11) versus Supply Voltage 6/9 3190-18.EPS 3190-17.EPS TDA3190 APPLICATION INFORMATION The electrical characteristics of the TDA3190 remain almost constant over the frequency range 4.5 to 6 MHz, therefore it can be used in all television standards (FM mod.). The TDA3190 has a high input impedance,so it can work with a ceramic filter or with a tuned circuit that provide the necessary input selectivity. The value of the resistors connected to pin 9, determine the AC gain of the audio frequency amplifier. This enables the desired gain to be selected in relation to the frequency deviation at which the output stage of the AF amplifier, must enter into Figure 16 : Typical Application Circuit clipping. Capacitor C8, connected between pins 10 and 11, determines the upper cutoff frequency of the audio bandwidth.To increase the bandwidth the values of C8 and C7 must be reduced, keeping the ratio C7/C8 as shown in the table of fig. 16. The capacitor connected between pin 16 and ground, together with the internal resistor of 10 K forms the de-emphasis network. The Boucherot cell eliminates the high frequency oscillations caused by the inductiveload and the wires connecting the loudspeaker. Figure 17 : P.C. Board and Component Layout of the Circuit shown in Figure 16 (1 : 1 scale) 7/9 3190-20.TIF 3190-19.EPS TDA3190 MOUNTING INSTRUCTION The Rth j-amb of the TDA3190 can be reduced by soldering the GND pins to a suitable copper area of the printed circuit board (fig. 18) or to an external heatsink (fig. 19). The diagram of figure 20 shows the maximum dissipable power Ptot and the Rth j-amb as a function of the side "l" of two equal square copper areas Figure 18 : Example of P.C. Board Copper Area which is used as Heatsink having a thickness of 35 (1.4 mils). During soldering the pins temperature must not exceed 260 C and the soldering time must not be longer than 12 seconds. The external heatsink or printed circuit copper area must be connected to electrical ground. Figure 19 : External Heatsink Mounting Example 3190-21.EPS Figure 20 : Maximum Dissipable Power and Junction to Ambient Thermal Resistance versus Side "T" Figure 21 : Maximum Allowable Power Dissipation versus Ambient Temperature 3190-23.EPS 8/9 3190-24.EPS 3190-22.EPS TDA3190 PACKAGE MECHANICAL DATA 16 PINS - PLASTIC DIP a1 I b Z B e3 e L b1 E D 16 9 F 1 8 Dimensions a1 B b b1 D E e e3 F i L Z Min. 0.51 0.77 Millimeters Typ. Max. 1.65 Min. 0.020 0.030 Inches Typ. Max. 0.065 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 DIP16.TBL 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 licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1994 SGS-THOMSON Microelectronics - All Rights Reserved Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to the I2C Standard Specifications as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 9/9 PM-DIP16.EPS |
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