TDA3508 Description
plastic dual in-line package; 28 leads (600 mil) GENERAL DESCRIPTION TDA3508 The TDA3508 is an integrated circuit which performs video control functions in a PAL/SECAM decoder for negative colour difference signals −(R−Y) and −(B−Y). The required input signals are luminance and colour difference and a 3-level sandcastle pulse for control purposes.
TDA3508 Key Features
- Capacitive coupling of the colour difference and luminance input signals with black level clamping in the input stages
- Linear saturation control acting on the colour difference signals
- (G-Y) and RGB matrix
- Linear transmission of inserted signals
- Equal black levels for inserted and matrixed signals
- Three identical channels for the RGB signals
- Linear contrast and brightness controls, operating on both the inserted and matrixed RGB signals
- Peak beam current limiting input
- Clamping, horizontal and vertical blanking of the three input signals controlled by a 3-level sandcastle pulse
- Three DC gain controls for the RGB output signals (white point adjustment)