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TDA4886A Dataheets PDF



Part Number TDA4886A
Manufacturers NXP
Logo NXP
Description 140 MHz video controller with I2C-bus
Datasheet TDA4886A DatasheetTDA4886A Datasheet (PDF)

INTEGRATED CIRCUITS DATA SHEET TDA4886A 140 MHz video controller with I2C-bus Product specification File under Integrated Circuits, IC02 1998 Dec 04 Philips Semiconductors Product specification 140 MHz video controller with I2C-bus CONTENTS 1 2 3 4 5 6 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 8 9 10 11 12 12.1 12.2 13 14 15 15.1 15.2 15.3 15.4 16 17 18 FEATURES GENERAL DESCRIPTION ORDERING INFORMATION QUICK REFERENCE DATA BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Signal input stage (inpu.

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INTEGRATED CIRCUITS DATA SHEET TDA4886A 140 MHz video controller with I2C-bus Product specification File under Integrated Circuits, IC02 1998 Dec 04 Philips Semiconductors Product specification 140 MHz video controller with I2C-bus CONTENTS 1 2 3 4 5 6 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 8 9 10 11 12 12.1 12.2 13 14 15 15.1 15.2 15.3 15.4 16 17 18 FEATURES GENERAL DESCRIPTION ORDERING INFORMATION QUICK REFERENCE DATA BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Signal input stage (input clamping, blanking and clipping) Electronic potentiometer stages Output stage Pedestal blanking Output clamping, feedback references and DAC outputs Clamping and blanking pulses On Screen Display (OSD) Subcontrast adjustment, contrast modulation and beam current limiting I2C-bus control I2C-bus data buffer LIMITING VALUES THERMAL CHARACTERISTICS CHARACTERISTICS I2C-BUS PROTOCOL TEST AND APPLICATION INFORMATION Test boards Recommendations for building the application board INTERNAL CIRCUITRY PACKAGE OUTLINE SOLDERING Introduction to soldering through-hole mount packages Soldering by dipping or by solder wave Manual soldering Suitability of through-hole mount IC packages for dipping and wave soldering methods DEFINITIONS LIFE SUPPORT APPLICATIONS PURCHASE OF PHILIPS I2C COMPONENTS TDA4886A 1998 Dec 04 2 Philips Semiconductors Product specification 140 MHz video controller with I2C-bus 1 FEATURES TDA4886A • 140 MHz pixel rate • 2.8 ns rise time, 3.8 ns fall time • I2C-bus control • I2C-bus data buffer for synchronization of adjustments • Grey scale tracking • On Screen Display (OSD) mixing with 50 MHz pixel rate • OSD contrast • Negative feedback for DC-coupled cathodes • Especially for AC-coupled cathodes – Black level adaptable to kind of post amplifier – Internal positive feedback – DAC outputs for black level restoration. • Integrated black level storage capacitors • Beam current limiting • Subcontrast/contrast modulation • Pedestal blanking • Sync clipping. 3 ORDERING INFORMATION TYPE NUMBER TDA4886A PACKAGE NAME SDIP24 DESCRIPTION plastic shrink dual in-line package; 24 leads (400 mil) VERSION SOT234-1 2 GENERAL DESCRIPTION The TDA4886A is a monolithic integrated RGB pre-amplifier for colour monitor systems (e.g. 15" and 17") with I2C-bus control and OSD. In addition to bus control, beam current limiting and contrast modulation are possible. The signals are amplified in order to drive commonly used video modules or discrete solutions. Individual black level control with negative feedback from the cathode (DC coupling) or gradually adaptable black level control with positive feedback and 3 DAC outputs for external cut-off control (AC coupling) is possible. With special advantages the circuit can be used in conjunction with the TDA485X monitor deflection IC family. 1998 Dec 04 3 Philips Semiconductors Product specification 140 MHz video controller with I2C-bus 4 QUICK REFERENCE DATA SYMBOL VP IP VP1,2,3 IP1,2,3 Vi(b-w) Vo(b-w) Vo(b-w)(max) Vo Vbl(DC) Vbl(AC) PARAMETER supply voltage (pin 7) supply current (pin 7) channel supply voltage (pins 21, 18 and 15) channel supply current (pins 21, 18 and 15) input voltage (black-to-white value; pins 6, 8 and 10) nominal output voltage swing (black-to-white value; pins 22, 19 and 16) maximum output voltage swing (black-to-white value; pins 22, 19 and 16) output voltage level (pins 22, 19 and 16) typical reference black level for DC coupling control bit FPOL = 0 (pins 22, 19 and 16) typical reference black level for AC coupling control bit FPOL = 1 and (pins 22, 19 and 16) PEDST = 0 BLH2 = 0; BLH1 = 0 BLH2 = 0; BLH1 = 1 BLH2 = 1; BLH1 = 0 BLH2 = 1; BLH1 = 1 Io(sink) Io(source) B tr(o) tf(o) dVo αct(f) CC TRo GC BC peak output sink current peak output source current bandwidth video rise time at signal outputs (pins 22, 19 and 16) video fall time at signal outputs (pins 22, 19 and 16) overshoot at signal outputs (pins 22, 19 and 16) crosstalk suppression by frequency contrast control related to nominal contrast tracking of output signals for contrast variation from maximum to minimum gain control related to maximum gain brightness control (typical black level voltage change related to nominal output signal amplitude) minimum rise time f = 50 MHz − − − − nominal contrast; maximum gain maximum contrast; maximum gain CONDITIONS MIN. 7.6 − 7.6 − − − − 0.05 0.5 TDA4886A TYP. 8.0 21 8.0 21 0.7 2.8 4.54 − − MAX. 8.8 25 8.8 25 1.0 − − UNIT V mA V mA V V V VP − 1 V 2.5 V 0.77 1.01 1.25 1.49 − − 165 2.8 3.8 17 − − 0.0 − − − − − − 20 − − − − 30 − +4.2 0.5 0 +30 V V V V mA mA MHz ns ns % dB dB dB dB % during fast signal transients − during fast signal transients −40 −3 dB (small signal) − − − 8 25 −28 − −7.3 −10 Vo(OSD)(max) maximum OSD output voltage swing related maximum OSD contrast; to nominal output voltage swing maximum gain (pins 22, 19 and 16) COSD OSD contrast control related to maximum OSD contrast − 120 − % −12 − 0 dB 1998 Dec 04 4 This text is h.


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