TEA2037 ST Microelectronics, TEA2037 Datasheet
TEA2037
Available stocks
Related parts for TEA2037
TEA2037 Summary of contents
Page 1
... RANGE FROM 30Hz TO 120Hz . VERY FEW EXTERNAL COMPONENT VERY LOW COST POWER PACKAGE DESCRIPTION The TEA2037Ais an horizontal and vertical deflec- tion circuit. It uses the same concept as TEA2117 but optimised for small screens, for a very low cost solution. PIN CONNECTIONS FRAME OSCILLATOR ...
Page 2
... CC1 CC1 LPS Starting Threshold for Line Output Pulses 2 FRAME + FLYBACK GENERATOR POWER STAGE - FRAME PHASE LINE OUTPUT DETECTOR OSCILLATOR STAGE TEA2037A CC1 Parameter Parameter 2 PC board copper area amb Parameter Yoke Value Unit ...
Page 3
... Vertical Frequency Drift with Temperature (see application Fig. 8) FRAME POWER SUPPLY (Pin 7) V Operating Voltage (with flyback generator Supply Current (V = 30V FLYBACK GENERATOR SUPPLY (PIn 2) V Operating Voltage (continued) amb Parameter = 560k ) SYNC 15 TEA2037A Min. Typ. Max. Unit 1.4 1. 0.2 0 2.8 3.2 3.6 V 5.4 6.6 7 ...
Page 4
... Flyback Transistor off (output = V FCI Leakage Current Pin 2 The TEA2037A performs all the video and power functions required to provide signals for the direct drive of the line darlington and frame yoke. It contains : - A shunt regulator - A synchronization separator - An integrated frame separator without external ...
Page 5
... When the line flyback and the video signal are synchronized, the output of the comparatoris an alternativelynegative and positive current. The frame sync-pulse inhibits the compa- rator to prevent frequency drift of the line oscillator on the frame beginning. Figure ST2 ST1 TEA2037A V CC1 V CC1 5/9 ...
Page 6
... TEA2037A Line Output (pin 14 open collector output which is able to drive pulse current of 800mA for a rapid discharging of the darlington base. The output pulse time for period. The oscillator thresholds are internally fixed by resistors. The oscillator is synchronized during the ...
Page 7
... TEA2037A 2.2nF 470 1/2W 2 CC1 47 1N4148 1N4003 TEA2037A 680pF V CC 2.2nF 470 1/2W 2 CC1 47 1N4148 TEA2037A 100nF 470k 470k 220nF 470 F 56k 1N4148 100nF 470k 470k 220nF 470 F 56k 7/9 ...
Page 8
... Input signal : negative TTL sync (line + frame) Dissipated power : 1.4W (heatsink required) Adjustments : Vertical amplitude Vertical Linearity Vertical frequency Horizontal frequency 1000 F 1N4002 TEA2037A 680pF V CC 220 1/2W 2 1N4148 V CC1 5 s 100nF 1N4148 Frame Yoke 11mH/7 ...
Page 9
... 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. Inches Max. Min. Typ. 0.020 1.40 0.033 0.020 0.50 0.015 20.0 0.346 0.100 0.700 7.10 5.10 0.130 1. system, is granted provided that the system conforms to TEA2037A Max. 0.055 0.020 0.787 0.280 0.201 0.050 9/9 ...