YM2610

YM2610 Datasheet 1. FM – 4 Channels on 4 operators, DAC compatable with YM3016 2. SSG – 3 operators, compatable with YM2149 (Atari ST), 4th operator is Noise 3. L/R – Sound channels out 4. ADPCM-A – 6 channels 18.5 KHz, 16 MB Sample ROM size, 256 B min size of sample, 1 MB max 5. ADPCM-B – 1 channel 1.8-55.5 KHz, 16 MB Sample ROM size, 256 B min size of sample, 16 MB max, compatable with YM2608 6. Master clock – 8MHz 7. 5V single power supply 8. 64-pin plastic SDIP Prime function The basic function of YM2610 can be divided roughly into four sound source part of FM sound source, SSG sound source, and ADPCM sound source. 1) FM sound source part The basic function of the FM sound source part is the same as OPN(YM2203). Pronunciation mode Four operator FM method and six sound pronunciation simultaneously. Algorithm Eight kinds. Parameter The register address and refer to the FM sound source part. LFO function Sine wave LFO. Pitch (PM) and, it modulates amplitude (AM). The LFO frequency is changeable. AM on/off is possible of PMS, the AMS control, and each operator. Compound sine wave synthesis One sound is possible in six sounds. Timer function Two kinds of timers of A and B. Output control On/off of L and R. 2) SSG sound source part The SSG sound source part is the same as OPN excluding the output method. Pronunciation form Three rectangular liquid sounds + white noise. Function of each data Refer to the register address. Output It outputs it from one te...