YM3608

The YM3608 is a special digital processor developed by Yamaha Corp. for use with digital filters.This processor makes YM3608 possible to easily configure IIR and FIR filters for serial sound signals using the internal microprogram.There are some features as follows.First is all microprogrammable function for digital filter.The second is a 50 bit accumulator with 4 bits of head margin and overflow detect provided.Besides, there are 2 serial input terminals and 2 serial input terminals, both of which can be used with any desired timing.Furthermore, the master clock operates at a maximum phase of 4.4 MHz and a minimum phase of 2 MHz.Fifthly, microprogram and coefficients can be controlled with SCI (Serial Control Interface).Sixthly,it operates on a single 5 V power supply.The last one is 24-pin DIP. 

What comes next is about the absolute maximum ratings of YM3608.The VDD (power supply voltage) is from -0.3 V to +7.0 V.The VI (input voltage) is from -0.5 to Vdd+0.5 V.The Top (operating ambient temperature) is from 0 to +70.The Tstg (storage temperature) is from -50 to +125.Then is about the recommended operating conditions.The minimum VDD (power supply voltage) is 4.75 V,the typicall is 5.0 V and the maximum is 5.25 V.The minimum Top (operating temperature) is 0 and the maximum is 70.

The following is about the AC characteristics of YM3608.The minimum VOH (output high voltage) is 3.5 V and the maximum is 0.4 V at IOH=-0.4 mA.The minimum VOL (output low voltage) is VSS V and the maximum is 0.4 V at IOL=1 mA.The minimum VIH (input high voltage) is 2.4 V and the maximum VIL (output low voltage) is 0.4 V.The maximum ILK (input leakage current) is 10A.