NXP Semiconductors 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. The circuit provides automatic cut-off control of the picture tube.| Part No. | TDA3508 |
|---|---|
| Datasheet | TDA3508 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Video control combination circuit |
| Buy | Stock & Price |
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)
● Emitter-follower outputs for driving the RGB output stages
● Input for automatic cut-off control with compensation for leakage current of the picture tube. ORDERING INFORMATION TYPE NUMBER TDA3508 PACKAGE NAME DIP28
DESCRIPTION
plastic dual in-line package; 28 leads (600 mil)GENERAL DESCRIPTION
TDA3508 Linear RGB signals can be inserted from an external source.
