TDA8310A  -PAL/NTSC colour processor for PIP applications

FEATURES

• Video switch with 2 CVBS inputs. One input can be

switched between CVBS and Y/C and the circuit can

automatically detect whether the incoming signal is

CVBS or Y/C

• Integrated chrominance trap and bandpass filters

(automatically calibrated)

• Integrated luminance delay line

• Automatic PAL/NTSC decoder which can decode all

standards available in the world

• Easy interfacing with the TDA8395 (SECAM decoder)

for multistandard applications

• Horizontal PLL with an alignment-free horizontal

oscillator

• Vertical count-down circuit

• RGB/YUV and fast blanking switch with 3-state output

and active clamping

• Low dissipation (560 mW)

• Small amount of peripheral components compared with

competition ICs.

GENERAL DESCRIPTION

The TDA8310A is an alignment-free PAL/NTSC colour

processor for Picture-in-Picture (PIP) applications.

The main difference between the TDA8310 and the

TDA8310A is that the vision IF amplifier has been omitted

in the TDA8310A. Therefore, the circuit contains an input

signal selector, a PAL/NTSC colour decoder, horizontal

and vertical synchronization and an RGB/YUV switch.

The input signal selector has 2 CVBS inputs. One of the

inputs can be switched between CVBS and Y/C and the

circuit can automatically detect whether the incoming

signal is CVBS or Y/C. The output signals for the PIP

processor are;

Luminance signal

Colour difference signals (U and V)

Horizontal and vertical synchronization pulses.

The RGB/YUV switch can select between two RGB or

YUV sources, e.g. between the PIP processor and the

SCART input signal.

The supply voltage for the IC is 8 V. It is available in a

52-pin SDIP package.

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