NXP Semiconductors TDA4689
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. The required input signals are: • Luminance and negative colour difference signals • 2 or 3-level sandcastle pulse for internal timing pulse generation • I2C-bus data and clock signals for microcontroller control.| Part No. | TDA4689 |
|---|---|
| Datasheet | TDA4689 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Video processor |
| Buy | Stock & Price |
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 compensation
● 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...
