YM2612: Difference between revisions

Latest revision as of 21:55, 18 June 2024

The YM2612, or OPN2, is an FM chip produced by Yamaha, best known for its use in the SEGA Mega Drive game console.

@@ Line 6: / Line 6: @@
 | type = [[FM synthesis|FM]], [[PCM]]
 | channels = 6 (5 FM, 1 FM/DAC)
+| package = DIP24 0.7"
 | produced = 198X-199X
-| variants = [[YM3438]], [[SEGA VDP YM3438]]
+| variants = [[YM3438]], [[SEGA VDP YM3438]], [[YMF276]]
+| clones = [[PCS8593]], [[SE-95]], [[TA-07]]
 }}
 The '''YM2612''', or OPN2, is an FM chip produced by [[Yamaha]], best known for its use in the SEGA Mega Drive game console.
-== Variants ==
-=== YM3438 ===
-The YM3438 (OPN2C) is a variant of the YM2612 using CMOS technology. While pin-compatible, it requires different surrounding analog circuitry. There are also differences in the timer behavior which prevent it from being a drop-in replacement for the original chip. DAC output quality is significantly improved compared to the YM2612.
-The YM3438 is used in the following devices:
-* Fujitsu FM Towns computers
-* SEGA System 32 and UFO catcher arcade boards
-=== YMF276 ===
-Another official variant known as the YMF276 (OPN2L) was produced for later FM Towns computers. In contrast to the other variants, the YMF276 eschews the internal DAC in favor of a serial digital audio output. It is also the only OPN2 variant to use a surface mount package.
-== Clones ==
-The popularity of the Mega Drive led to this chip being cloned for use in bootleg consoles.
-====Discrete====
-* [[PCS8593]]
-* [[SE-95]]
-* [[TA-07]]
-==== Integrated ====
-* TODO
 [[Category:Sound chips]]
+[[Category:Yamaha OPN series]]