TDA4689 Datasheet | NXP Semiconductors

INTEGRATED CIRCUITS DATA SHEET TDA4689 Video processor with automatic cut-off control Product specification File under Integrated Circuits, IC02 1997 Jul 01 Philips Semiconductors Product specification Video processor with automatic cut-off control Features - Operates from an 8 V DC supply - Black level clamping of the colour difference, luminance and RGB input signals with coupling-capacitor for DC level storage - Two analog RGB inputs, selected either by fast switch signals or via I2C-bus; brightness and contrast control of both RGB inputs - Saturation, contrast, brightness and white adjustment via I2C-bus - Same RGB output black levels for Y/CD and RGB input signals - Timing pulse generation from either a 2 or 3-level sandcastle pulse for clamping, vertical synchronization and cut-off timing pulses - Automatic cut-off control or clamped output selectable via I2C-bus - Automatic cut-off control with picture tube leakage current pensation - Cut-off measurement pulses after end of the vertical blanking pulse or end of an extra vertical flyback pulse - Ultra-black or nominal black blanking selectable via I2C-bus in clamped output mode - Two switch-on delays to prevent discolouration before steady-state operation - Average beam current and peak drive limiting - PAL/SECAM or NTSC matrix selection via I2C-bus - Emitter-follower RGB output stages to drive the video output stages - I2C-bus controlled DC output e.g. for hue-adjust of NTSC (multistandard) decoders - Positive amplification factor of cut-off control voltage. GENERAL DESCRIPTION The TDA4689 is a monolithic integrated circuit with a luminance and a colour difference interface for video processing in TV receivers. Its primary function is to process the luminance and colour difference signals from a colour decoder which is equipped e.g. with the multistandard decoder TDA4655 or TDA9160 plus delay ORDERING INFORMATION TYPE NUMBER TDA4689 1997 Jul 01 PACKAGE NAME DIP28 DESCRIPTION plastic dual in-line...