Philips Semiconductors
Product specification
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
SAA7146A
1.5
General
2
GENERAL DESCRIPTION
• Subsystem (board) vendor ID support for board
identification via software driver
The SAA7146A, Multimedia PCI-bridge, is a highly
integrated circuit for DeskTop Video (DTV) applications.
The device provides a number of interface ports that
enable a wide variety of video and audio ICs to be
connected to the PCI-bus thus supporting a number of
video applications in a PC. One example of the application
capabilities is shown in Fig.49.
• Internal arbitration control
• Diagnostic support and event analysis
• Programmable Vertical Blanking Interval (VBI) data
region for e.g. to support INTERCAST, teletext, closed
caption and similar applications
Figure 1 shows the various interface ports and the main
internal function blocks.
• 3.3 V supply enables reduced power consumption, 5 V
tolerant I/Os for 5 V PCI signalling environment.
3
QUICK REFERENCE DATA
SYMBOL
PARAMETER
MIN.
3.0
TYP.
3.3
400
MAX.
3.6
UNIT
VDDD
digital supply voltage
V
IDDD(tot)
Vi; Vo
fLLC
total digital supply current
data input/output levels
−
−
mA
TTL compatible
LLC input clock frequency
PCI input clock frequency
I2S input clock frequency
operating ambient temperature
−
−
−
0
−
−
−
−
32
MHz
MHz
MHz
°C
fPCI
33
fI2S
12.5
70
Tamb
4
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
SAA7146AH
NAME
DESCRIPTION
VERSION
QFP160
plastic quad flat package; 160 leads (lead length 1.95 mm);
SOT322-1
body 28 × 28 × 3.4 mm; high stand-off height
SAA7146AHZ
SQFP208 plastic shrink quad flat package; 208 leads (lead length 1.3 mm);
SOT316-1
body 28 × 28 × 3.4 mm
1998 Apr 09
4
NXP [ NXP ]
