DOS Days

Crystal CS-4280 / CS-4281

The CS-4280 was Crystal's first PCI audio controller for PC sound cards, introduced in 1998.

 

Released 1998 (CS4280), 1999 (CS4281)
Bus PCI
FM Synth (Emulated)
Sample Range 4 - 50 kHz
Packages CS4280: 100-pin MQFP (-CM) or 128-pin TQFP (-CQ)
CS4281: 100-pin MQFP (-CM) or 100-pin TQFP (-CQ)
Standards AC'97, PC'98, PC'99 (CS4281 only), Sound Blaster Pro (via PC/PCI, DDMA or CCLS)
Plug & Play Yes
See Also CS4297

The CS4280 and CS4281 are PCI audio chips with legacy DOS compatibility via both PC/PCI, Distributed DMA and what Crystal called "CrystalClear Legacy Support" (CCLS). They have an integrated FM synthesizer, hardware volume control, an MPU-401 interface, zoom video port and game port. They both require an external codec.

The CS4280 is pin-compatible with the earlier CS4614, CS4622/CS4624, and is usually coupled with the Crystal CS4297 audio codec.

CS4280 is found on the JoyTech Twister 3D sound card as well as the Pine Technology PT2620.


Revisions

Competition

 

In the Media

 

Setting it Up


Downloads

CS4280 Datasheet
May 1998

 

CS4281 Datasheet
Apr 1999

 

More Pictures