TDA4687 NXP Semiconductors Datasheet

TDA4687 Key Features

• Operates from an 8 V DC supply
• Black level clamping of the colour difference, luminance and RGB input signals with coupling-capacitor DC level storage
• Two analog RGB inputs, selected either by fast switch signals or via I2C-bus; brightness and contrast control of both RG
• 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 t
• 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