RF5C136

The RF5C136 is a kind of video signal transversal filter which performs a ghost canceller of TV pictures by use of GCR signal on the TV signal. The LSI has 8-bit signal inputs and 8-bit coefficient inputs and includes 32 multipliers and 32 adders. The device is fabricated in low-power CMOS technology and is available in a 80 pin QFP. The typical applications include ghost canceller and digital video.

There are some features of RF5C136 about the functions as follows: (1)asymmetric 32 taps transversal filter (cascade connection available); (2)data length: input data: 8 bit (possible to switch absolute value with no-sign and 2's complement), input coefficient: 8 bit (2's complement), SUM I/O: 16 bit (2's complement, SUM output reset), multiplier: 8*8 (16 bit) and adder: 16+19 (19 bit); SUM output 16 bit; (3)operating frequency: max 16 MHz (clock rate); (4)rewriting coefficient: specifing the address of the coefficient register, 8 bit parallel and cofficient reset; (5)overflow detection: overflow detect pin, possible to detect the overflow in the cascade connection by the use of daisy chain; (6)package: 80 pin QFP.

The following is about the absolute maximum ratings of RF5C136: (1)VCC, supply voltage: -0.3 to 7 V when GND=0 V; (2)VTE, voltage range on any pin: -0.3 to VCC+0.3 V when GND=0 V; (3)Pd, power consumption: 1200 mW when Ta25 when mounted on a board; (4)Topr, operating temperature: 0 to 70; (5)Tstg, storage temperature: -40 to 125. Then is about the recommended operating condition: (1)VCC, supply voltage: 4.5 to 5.5 V; (2)Ta, operating temperature: 0 to 70.