Yamaha YMF262

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Yamaha YMF262 (year 1994)
Yamaha YMF262 (year 1994)
Image:YamahaOPL2.jpg
Yamaha YMF262 in Rockwell Modem

The Yamaha YMF262 also known as the OPL3 (OPL is an acronym for FM Operator Type-L), is an improved version of the sound chip Yamaha YM3812 (OPL2). It adds the following features:

  • Twice as many channels (18 instead of 9)
  • Simple stereo (hard left, center or hard right)
  • 4 new waveforms (alternating-sine, "camel"-sine, square and logarithmic saw)
  • 4 oscillator mode (combines 2 channels together, for maximum 6 channels)
  • Less time spent busy-waiting for a response from the chip, improved latency and system performance (the OPL2 required fairly long delays)

This chip is used for the Sound Blaster Pro 2.0 and for the MSX sound card MoonSound (in conjunction with the Yamaha YMF278).

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