View la7337 datasheet:

Ordering number : N5288A Monolithic Linear IC LA7337 SECAM-Format VCR Chroma Signal-Processing Circuit Overview Package Dimensions The LA7337 is an IC that implements SECAM-format unit: mm VCR signal processing in a single chip. It incorporates 3063-DIP28S band-pass filters and a SECAM discrimination circuit on [LA7337] chip and features automatic adjustment of the bell filter for a reduced number of external components and adjustment- free circuit operation. Features • All required filters, except for the bell filter, incorporated on chip. • Automatic adjustment of the bell filter f0 parameter • Built-in SECAM discrimination circuit Functions •4.3-MHz and 1.1-MHz band-pass filters, limiter, AGC (in playback mode) SANYO: DIP28S • Divide-by-four circuit, 4? frequency m