TDA8490

The TDA8490 is a monolithic integrated SECAM decoder .This circuit is intended to be used in conjunction with TDA8490 or TDA8461 (PAL decoder),TDA8451(delay) and TDA8452(filter).In this application the TDA8490 is placed in parallel with the demodulation circuit of the PAL decoder.

Features of the TDA8490 are:(1)limiter input for chrominance signal; (2)SECAM demodulator; (3)clamp circuits and de-emphasis for colour difference signals ; (4)sandcastle pulse detector; (5)indentification circuit for horizontal and vertical SECAM identification.

The absolute maximum ratings of the TDA8490 can be summarized as:(1)supply voltage:13.2V; (2)total power dissipation:1.7W; (3)storage temperature range:-25~150; (4)operating ambient temperature range:-25~65.If you want to know more information such as the electrical characteristics, please download the datasheet in www.seekic.com or www.chinaicmart.com.