SAA7785 Datasheet, PDF (11/68 Pages) NXP Semiconductors – ThunderBird Avenger PCI Audio Accelerator

Philips Semiconductors
Preliminary Specification
ThunderBird Avenger^TM PCI Audio
Accelerator
SAA7785
Architectural Overview
The SAA7785 ThunderBird Avenger^TM is a multi-functional device that provides sound processing producing Sound-
Blaster-compatible emulation, DirectSound acceleration, 3D sound, spatialization, special effects, and 64-voice wavet-
able synthesis through the use of a Pine Digital Signal Processor (DSP) as the primary engine. Included within the
ThunderBird Q3DIII are interfaces for an AC97 codec, I²S I/O, MIDI port, standard analog joysticks, and an S/P DIF
Consumer Output port.
FIGURE 3
Block Diagram of a PC/AT System with the SAA7785 ThunderBird AvengerTM
Cache
Pentium^TM
CPU
HOST BUS
Memory
System
Controller
AGP
Graphics
Multi I/O
ISA BUS
PCI to ISA
Bridge
PCI BUS
ThunderBird^TM Audio
Controller
AC97 CODEC AC97 CODEC
2/4 Channels Additional
MIDI Port
Joystick
I²S
S/P DIF
(Primary)
2 channels
1999 Nov 12
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