Philips Semiconductors
Product specification
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
1.5
General
2
GENERAL DESCRIPTION
SAA7146A
•
Subsystem (board) vendor ID support for board
identification via software driver
•
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
•
3.3 V supply enables reduced power consumption, 5 V
tolerant I/Os for 5 V PCI signalling environment.
3
QUICK REFERENCE DATA
SYMBOL
V
DDD
I
DDD(tot)
V
i
; V
o
f
LLC
f
PCI
f
I2S
T
amb
4
digital supply voltage
total digital supply current
data input/output levels
LLC input clock frequency
PCI input clock frequency
I
2
S input clock frequency
operating ambient temperature
PARAMETER
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.
Figure 1 shows the various interface ports and the main
internal function blocks.
MIN.
3.0
−
−
−
−
0
TYP.
3.3
400
−
−
−
−
−
MAX.
3.6
V
UNIT
mA
MHz
MHz
MHz
°C
TTL compatible
32
33
12.5
70
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
SAA7146AH
SAA7146AHZ
QFP160
SQFP208
DESCRIPTION
plastic quad flat package; 160 leads (lead length 1.95 mm);
body 28
×
28
×
3.4 mm; high stand-off height
plastic shrink quad flat package; 208 leads (lead length 1.3 mm);
body 28
×
28
×
3.4 mm
VERSION
SOT322-1
SOT316-1
1998 Apr 09
4
PHILIPS [ NXP SEMICONDUCTORS ]
