Functional Description

SMPTE-259M Operation

The CY7C9235A is a CMOS integrated circuit designed to encode SMPTE-125M bit-parallel digital characters (or other data formats) using the SMPTE-259M encoding rules. Following encoding, the characters are output as bit-parallel characters ready for serialization. The encoded outputs of the CY7C9235A are designed to be directly mated to a CY7B9234 HOTLink transmitter, which then converts the bit-parallel characters into a SMPTE-259M compatible high-speed serial data stream.

Features

• Fully compatible with SMPTE-259M

• Fully compatible with DVB-ASI

• Operates from a single +5V supply

• 44-pin PLCC package

• Encodes both 8- and 10-bit parallel digital streams for 27M characters/sec (270 Mbits/sec serial)

• Operates with CY7B9234 SMPTE HOTLink serializer/transmitter

• ×9 + ×4 + 1 scrambler and NRZI encoder may be bypassed for raw data output