Philips SAA 1099
Encyclopedia
| Philips SAA 1099 | |||
|---|---|---|---|
| Pin | Name | Dir | Description |
| 1 | /WR | Write Enable | |
| 2 | /CS | Chip Select | |
| 3 | A0 | Control/Address Selec | |
| 4 | OUTR | Sound Output Right | |
| 5 | OUTL | Sound Output Left | |
| 6 | IREF | Reference Current Supply | |
| 7 | /DTACK | Data Transfer Acknowledge | |
| 8 | CLK | External Clock | |
| 9 | VSS | Ground | |
| 10 | D0 | Data Bus 0 | |
| 11 | D1 | Data Bus 1 | |
| 12 | D2 | Data Bus 2 | |
| 13 | D3 | Data Bus 3 | |
| 14 | D4 | Data Bus 4 | |
| 15 | D5 | Data Bus 5 | |
| 16 | D6 | Data Bus 6 | |
| 17 | D7 | Data Bus 7 | |
| 18 | VDD | Power +5V | |
The Philips
Philips
Koninklijke Philips Electronics N.V. , more commonly known as Philips, is a multinational Dutch electronics company....
SAA1099 sound generator was a 6-voice sound chip
Sound chip
A sound chip is an integrated circuit designed to produce sound . It might be doing this through digital, analog or mixed-mode electronics...
used by some 1980's devices, notably:
- The SAM CoupéSAM CoupéThe SAM Coupé is an 8-bit British home computer that was first released in late 1989. It is commonly considered a clone of the Sinclair ZX Spectrum computer, since it features a compatible screen mode and emulated compatibility, and it was marketed as a logical upgrade from the Spectrum...
British-made computer - The Creative Music System (C/MS) by Creative Labs, which was also marketed at RadioShackRadioShackRadioShack Corporation is an American franchise of electronics retail stores in the United States, as well as parts of Europe, South America and Africa. As of 2008, RadioShack reported net sales and operating revenues of $4.81 billion. The headquarters of RadioShack is located in Downtown...
as the Game Blaster. They had 2 chips, for 12 voices. - Their Sound BlasterSound BlasterThe Sound Blaster family of sound cards was the de facto standard for consumer audio on the IBM PC compatible system platform, until the widespread transition to Microsoft Windows 95, which standardized the programming interface at application level , and the evolution in PC design led to onboard...
1.0 cards (also 1.5 and 2.0 if you added it on). However that card also had an OPL2 chip (aka YM3812), which became much more popular. - Silicon GraphicsSilicon GraphicsSilicon Graphics, Inc. was a manufacturer of high-performance computing solutions, including computer hardware and software, founded in 1981 by Jim Clark...
use it on the IO2 and IO3 board for sound generation, but this feature was almost never documented and used, but the SAA1099 is present and usable if addressed directly.
The chip produced square waves and noise (at 3 different frequencies). Its main feature was that it could output in stereo (it was possible to set the left and right channel volume independently).