Philips Semiconductors
Product Specification
ThunderBird Q3D PCI Audio
Accelerator
SAA7780
• Add's reverb as an additional positional que
• Reverb preset's can be applied to any
DirectSound3D application
• EAX
TM
Compatible
• QXpander
TM
and Stereo to 3D remapping
• Second Generation ActiMedia
TM
Programma-
bleDSP architecture
• Comprehensive Real Mode DOS and DOS window
support
• SoundBlaster Pro
TM
Compatibility
• PC/PCI, DDMA and LAM
TM
PCI DMA support
• FM, MIDI stereo and MIDI quad music in Real
Mode DOS
• Supports low cost AC97 1.0 and serial stereo DAC
output
• Dual gameport accelerator with legacy and digital
joystick modes
• Integrated 16650 UART for Modem or other serial
port applications
• Windows
(R)
95, Windows
(R)
98, and Windows
(R)
NT 5.0 (WDM) Drivers
• 0.35u TLM manufacturing technology
• 3.3v operation with 5v tolerant I/O
FEATURES
• Full H/W acceleration of 64 audio sources
• 64 H/W sample fetch channels
• 64 H/W sample rate convertors
• H/W mixing of 64 streams
• H/W DSP filter/effects/music synthesis applied
to 64 streams
• Concurrent processing of up to 384 audio sources
• Up to 64 DirectSound/wavetable sources pro-
cessed in H/W
• 64 plus DirectSound sources processed on host
• Up to 128 total DirectSound sources
• Up to 64 3D sources
• Up to 64 H/W wavetable voices
• Up to 256 host wavetable voices
• QSound3DInteractive
TM
interactive positional 3D
• H/W DSP processing for maximum performance
• Stereo speaker, headphone and quad speaker
algorithms
• Proprietary technology eliminates crosstalk can-
cellation and broadens "sweet spot"
• A3D
TM
compatible
• QSound Multi-Speaker System
TM
stereo-to-quad pro-
cessing
• Transforms ordinary stereo applications to quad-
raphonic
• Non-3D games become immersive quad 3D
games
• Enhanced DVD movie playback
• True quadraphonic music playback from CD's,
music DVD's and MP3 players
• Effective with both stereo and Dolby Pro-Logic
TM
encoded material
• QSound Environmental Modeling
TM
1999 Sep 30
2
GENERAL DESCRIPTION
The SAA7780 ThunderBird Q3D
TM
is a high-perfor-
mance PCI audio accelerator targeting PC gaming
and music applications. Developed by QSound Labs
and Philips Semiconductors, it combines the most
compelling 3D, quadraphonic and music synthesis
technologies available with the powerful yet cost
effective ActiMedia
TM
DSP architecture. Full H/W
acceleration of DirectSound
TM
, 3D audio, music syn-
thesis, and gameport functions guarantees excep-
tional system performance. QSound's new Q3D
TM
algorithms not only render exceptional 3D sound-
scapes for 3D applications but add a new dimension
to stereo applications using their unique stereo-to-3D
and stereo-to-quad remapping capabilities. Three
available PCI DMA modes assure full SoundBlaster
Pro
TM
compatibility on most platforms without addi-
tional hardware. The Intel AC97 architecture pro-
vides high audio quality using a low cost AC97
codec.
853-2174 22449
Philips Semiconductors
Product Specification
ThunderBird Q3D PCI Audio
Accelerator
SAA7780
ORDERING INFORMATION
TYPE
NUMBER
SAA7780
NAME
QFP160
PACKAGE
DESCRIPTION
plastic quad flat pack; 160 leads (lead length 1.60 mm); body
28 x 28 x 3.42 mm
VERSION
25-90019
QUICK REFERENCE DATA
Condition
Ambient Operating Temperature
Ambient Storage Temperature
Non-Operating Core and Ring Supply Voltage
Operating Core Supply Voltage
Operating Ring Supply Voltage
5V Tolerant Supply (5.0V nominal supply)
NWELL to VDD Differential
3V Tolerant I/O DC Input Voltage
3V Tolerant I/O DC Output Voltage
5V Tolerant I/O DC Input Voltage
5V Tolerant I/O DC Output Voltage
DC Input Current (at V
I
< 0V or V
I
> VDD)
DC Output Current (at V
O
< 0V or V
O
> VDD)
Power Dissipation
T
A
T
S
VDD, VDDIC
VDDIC
VDD
NWELL
NWELL-VDD
V
I3
V
O3
V
I5
V
O5
I
I
I
O
P
D
Symbol
Maximum Ratings
0° to +70°
C
C
-65° to +150°
C
C
-0.5V to 4.6V *
-0.5V to 3.63V *
3.0V to 3.63V *
-0.5V to 5.5V *
0
≤
(NWELL-VDD) < 4.0V
-0.5V to VDD+0.5V (≤ 4.6V max)+
-0.5V to VDD+0.5V (≤ 4.6V max)+
-0.5V to 5.5V (≤ 6.0V max)+
-0.5V to VDD+0.5V (≤ 4.6V max)+
±
20mA
±
20mA
500mW
*Refer to Section 3.1 to ensure proper power supply sequencing as well as voltage ranges.
+Items in parenthesis are non-operating conditions.
1999 Sep 30
3