TDA4443 MULTISTANDARD VIDEO IF AMPLIFIER . . . . .. .. .. .. . SWITCHING OFF THE IF AMPLIFIER WHEN OPERATING IN VTR MODE DEMODULATION OF NEGATIVE OR POSITIVE IF SIGNALS. THE OUTPUT REMAINS ON THE SAME POLARITY IN EVERY CASE IF AGC AUTOMATICALLY ADJUSTED TO THE ACTUAL STANDARD TWO AGC POSSIBILITIES FOR B/G MODE : 1. GATED AGC 2. UNGATED AGC ON SYNC. LEVEL AND CONTROLLED DISCHARGE DEPENDENT ON THE AVERAGE SIGNAL LEVEL FOR VTR AND PERI TV APPLICATIONS FOR STANDARD L : FAST AGC ON PEAK WHITE BY CONTROLLED DISCHARGE POSITIVE OR NEGATIVE GATING PULSE EXTREMELY HIGH INPUT SENSITIVITY LOW DIFFERENTIAL DISTORTION CONSTANT INPUT IMPEDANCE VERY HIGH SUPPLY VOLTAGE REJECTION FEW EXTERNAL COMPONENTS LOW IMPEDANCE VIDEO OUTPUT SMALL TOLERANCES OF THE FIXED VIDEO SIGNAL AMPLITUDE ADJUSTABLE, DELAYED AGC FOR PNP TUNERS DESCRIPTION The TDA4443 is a Video IF amplifier with standard switch for multistandard colour or monochrome TV sets, and VTR’s. DIP16 (Plastic Package) ORDER CODE : TDA4443 PIN CONNECTIONS IF INPUT 1 16 IF INPUT STANDARD SWITCHING 2 15 GROUND GROUND 3 14 NOT TO BE CONNECTED IF AGC TIME CONSTANT 4 13 SUPPLY VOLTAGE V CC DELAYED TUNER AGC OUTPUT 5 12 NOT TO BE CONNECTED TUNER AGC ADJUST 6 11 VIDEO SIGNAL OUTPUT GATING PULSE INPUT 7 10 DISCHARGE TIME CONSTANT REFERENCE LC NETWORK 8 9 4443-01.EPS REFERENCE LC NETWORK December 1992 1/7 TDA4443 BLOCK DIAGRAM VIDEO OUTPUT 11 10 TDA4443 WIDE BAND AMPLIFIER DEMODULATOR IW IF INPUT 16 IF INPUT 1 9 VIDEO 8 CONTROL AMPLIFIER 3 15 TUNER CONTROL 5 6 GENERAL DESCRIPTION This video IF processing circuit integrates the following functional blocks : Three symmetrical, very stable, gain controlled wideband amplifier stages - without feedback by a quasi-galvanic coupling. Demodulator controlled by the picture carrier Video output amplifier with high supply voltage 2/7 13 TUNER AGC ADJUST .. .. .. VCC rejection Polarity switch for the video output signal AGC on peak white level Gated AGC Discharge control Delayed tuner AGC At VTR Reading mode the video output signal is at ultra white level 4443-02.EPS 4 TUNER AGC OUTPUT . .. GATING PULSE GATING AMPLIFIER VS 2 7 SUPPLY UNIT STANDARD SWITCH TDA4443 ABSOLUTE MAXIMUM RATINGS Parameter Value Unit VCC Supply Voltage RangePin 13 15 V V0 Open Loop Voltage Pin 5 max. VCC V Vext External Voltage Pin 4 12 V 0.3 mA 0.5 mA I4 Control Current for VTR Mode I2 Control Current for Standard Mode I0 Max. Video Output Current Pin 11 5 mA I0 Short Circuit Current (t ≤ 1sec) Pin 11 30 mA Ptot Tj TAMB Tstg Pin 4 Pin 2 Power Dissipation 1 125 C 0 to +70 o C -25 to +125 o C Junction Temperature Ambient Temperature Range Storage Temperature Range W o 4443-01.TBL Symbol Symbol R th (j-a) Parameter Value Junction-ambient Thermal Resistance Unit o 70 C/W 4443-02.TBL THERMAL DATA ELECTRICAL OPERATING CHARACTERISTICS TAMB = 25oC, VCC = 12V, unless otherwise spacified. Test Circuit Page 5. Parameter Pin Min. VCC Supply Voltage 13 ICC Supply Current (VCC = 12V, V4 = 3.5V, V IN = 0) Pin 6, PIn 7, PIn 2 open 13 V11 Ultra White Level at Standard B/G VCC = 15V, V4 = 3.5V 11 VAA Ultra Black Clamping Level at Standard B/G SIGNAL 1 VO VO Typ. Max. Unit 12 15 V 55 75 mA 4.8 5.1 5.6 V 11 1.70 1.85 2.10 V Picture to sync. output voltage of the video signal without load in standard B/G (residual carrier 10%) SIGNAL 1 11 2.6 2.9 3.3 VPP Picture to blanking level output voltage of the video signal without load in standard L (blanking level at 28%of carrier amplitude) SIGNAL 2 (residual carrier 5%) 11 1.80 2.1 2.40 VPP 10 % ∆ ( Vp − Vblank ) Output voltage change of the picture to blanking level from standard L to standard B/G (mode BG : signal 1, mode L : signal 2) Vp − Vblank 10 11 ∆Vblack Supply voltage influence on the ultra black level in standard B/G 11 0.5 ∆Vwhite Supply voltage influence on the ultra white level in standard B/G 11 1 ∆Vvideo Video Bandwidth Video Signal Attenuation with VIN at 4.43MHz 11 1 1.5 Bvideo Video Bandwidth at -3dB 11 ∆Vvideo Video frequency response changes witin the AGC range 11 0.5 2.0 dB IO DC Output Current (V11 = 10V, VCC = 15V) 11 2 mA I7 Gating Pulse Current 7 1.0 mA V7 DC Voltage at Gating Input 7 1.3 V1 Input Voltage Sensitivity VIN (with VOUT = VO - 3dB) Standard B/G SIGNAL 1 116 120 Control Current for Status B (see status of mode switching) V2 = 5V 2 10 I %V %V 6 dB MHz 1.5 0.30 1.6 V µVRMS 40 µA 3/7 4443-03.TBL Symbol TDA4443 ELECTRICAL OPERATING CHARACTERISTICS (continued) TAMB = 25oC, VCC = 12V, unless otherwise spacified. Test Circuit Page 5. Symbol I Parameter Pin Control Current Status C (see status of mode switching) - V2 = 6.3V Min. 2 Typ. Max. 60 400 Unit µA ∆GIF IF AGC Range IAGC Available Tuner AGC Current (10dB above the AGC starting point) 5 Delay Between Tuner AGC and IF AGC (pin 6 not connected) 5 IF residual carrier at the video o/p withing the AGC range 38.9MHz 77.8MHz 11 11 20 50 mVRMS mVRMS ∆AGC VIF V2IF d aM ∆Sync Differential Distortion on Composite VIdeo Signal Amplitude SIGNAL 3 11 Attenuation of sound to color carrier intermodulation signal (1.07MHz) referred to the demodulated color carrier : PIcture Carrier = 0dB, Color Carrier = -6dB, Sound Carrier = -24dB 11 8 60 dB 12 mA 50 dB 5 Sync. Pulse Compression within the IF AGC Range % 50 dB 3 % 2.5 2 kΩ pF RI CI Input Impedance : Resistance Capacitance 1-16 1-16 V Switch off Control Voltage for VTR Mode 4 I Switch off Current for VTR Mode 4 9 10 V 150 µA 4443-04.TBL Sync SIGNAL 1 (standard B/G) Demodulated Signal IF Signal 1000mV 300mV 0mV 4/7 100% 10% 4443-03.EPS / 4443-04.EPS 100% TDA4443 SIGNAL 2 (standard L) IF Signal Demodulated Signal 1000mV 5% 100% 4443-05.EPS / 4443-06.EPS 100% 300mV 0mV SIGNAL 3 Demodulated Signal 4.43MHz 900mV 200mV 200mV 500mV 4.43MHz 4443-07.EPS 300mV 0mV TEST CIRCUIT SUPPLY VOLTAGE V CC VIDEO OUTPUT 22µF 10nF 47nF 68nF 22nF Attenuateur 16 15 N.C. 14 13 N.C. 12 11 10 9 TDA4443 Modulator 22nF Video Generator 22nF 1 2 3 4 5 6 2.5kΩ 200kΩ 33pF 7 0.5µH 8 5kΩ 2.2µF V4 I5 GATING 4443-08.EPS 20kΩ MODE SWITCHING 5/7 TDA4443 Status A B C D Pin 2 Not connected 12V HIgh Impedance 12V Low Impedance Pin 4 No External Voltage No External Voltage No specifications ≥ 7.5V Function Standard B/G mode, gated charge and discharge. Standard B/G, ungated, charging up to sync. level, discharging dependant from average signal (peri operation). At standard L ungated, charging up to peak white level, discharge dependant from average signal level, inverted polarity of the video output. In VTR reading mode the IF amplifier is blocked, turned gain controlled down : the video output signal is fixed at constant ultra white level for standard B/G mode. No External Voltage 4443-05.TBL DEFINITION OF MODE SWITCHING The gating pulse at Pin 7 is internally switched off. STATUS OF MODE SWITCHING, REFERRING TO CONTROL VOLTAGE PIN 2 Connections of Pin 2 Open High Impedance Low Impedance Ground Status Function A B C D Standard Standard Standard Standard B/G gated sync. operation B/G, no sync., operation L L 4443-06.TBL Control Voltage Pin 2 1.2 to 2.5V* 3.0 to 5.0V > 6.5V 0.0 to 0.8V * Voltage measured on Pin 2. STATUS D A B C V2 0.8 2.5 1.2 5.0 6.5 3.0 I2 (nA) 3 +12V I2 TDA4443 V2 2 1 V2 (V) 0 6/7 4 8 12 4443-09.EPS 0 TDA4443 I b1 L a1 PACKAGE MECHANICAL DATA 16 PINS - PLASTIC DIP b B e E Z e3 D 9 1 8 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 0.5 0.25 Inches Typ. Max. 0.065 0.020 0.010 20 8.5 2.54 17.78 0.787 0.335 0.100 0.700 7.1 5.1 3.3 0.280 0.201 DIP16.TBL Dimensions PM-DIP16.EPS F 16 0.130 1.27 0.050 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. 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. 7/7