YM3438: Difference between revisions
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(Created page with "{{Infobox chip | name = YM3438 | variant = YM2612 | image = TODO | manufacturer = Yamaha | ymseriescode = OPN2C | type = FM, PCM | channels = 6 (5 FM, 1 FM/DAC) | package = DIP24 0.7" | produced = 198X-199X | variants = SEGA VDP YM3438, YMF276 | documents = Datasheet, Application Manual }} The '''YM3438''' (OPN2C) is a variant of the YM2612 using CMOS technology. While pin-compati...") |
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The '''YM3438''' (OPN2C) is a variant of the [[YM2612]] using CMOS technology. | The '''YM3438''' (OPN2C) is a variant of the [[YM2612]] using CMOS technology. | ||
== | == Differences == | ||
While pin-compatible with the YM2612, 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 with less distortion compared to the YM2612. | |||
The YM3438 is used in the following | == Systems == | ||
The YM3438 is used in the following systems: | |||
* Fujitsu FM Towns computers | * Fujitsu FM Towns computers | ||
* SEGA System 32 and UFO catcher arcade boards | * SEGA System 32 and UFO catcher arcade boards | ||
[[Category:Sound chips]] | [[Category:Sound chips]] | ||
[[Category:Yamaha OPN series]] | |||
Latest revision as of 22:19, 18 June 2024
YM3438
| Variant of | YM2612 |
|---|---|
| Manufacturer | Yamaha |
| Code | OPN2C (OPN series) |
| Type | FM, PCM |
| Channels | 6 (5 FM, 1 FM/DAC) |
| Package | DIP24 0.7" |
| Produced | 198X-199X |
| Variants | SEGA VDP YM3438, YMF276 |
| Documents | Datasheet, Application Manual |
The YM3438 (OPN2C) is a variant of the YM2612 using CMOS technology.
Differences
While pin-compatible with the YM2612, 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 with less distortion compared to the YM2612.
Systems
The YM3438 is used in the following systems:
- Fujitsu FM Towns computers
- SEGA System 32 and UFO catcher arcade boards