10MHz 64 Bit Error Tolerant Signature Recognition Circuit

This paper a circuit will be presented which identifies a 64 bit synchronization word in a serial incoming data stream. The signature is identified when the incoming data stream matches a previously known and stored signature. It is also possible to program the number of bit errors permissible for recognition of the signature. The circuit was fabricated in a 1.5¿m CMOS technology for use in a D2MAC television decoder. The circuit operates at data rates up to 20MHz and covers an area of 1.4 × 0.1 mm²