saa5284 NXP Semiconductors, saa5284 Datasheet - Page 3

• Manufacturer Part Number: saa5284
• Description: Multimedia Video Data Acquisition Circuit
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1
3
Note
1. Selectable: 12, 13.5, 15 or 16 MHz.
4
1998 Feb 05
V
I
V
V
f
T
TYPE NUMBER
SAA5284GP
DD
xtal
amb
High performance multi-standard data slicer
Intercast
Teletext (WST, Chinese teletext) (625 lines)
Teletext (US teletext, NABTS and MOJI) (525 lines)
Wide Screen Signalling (WSS), Video Programming
Signal (VPS)
Closed Caption (Europe, US)
Data broadcast, PDC (packet 30 and 31)
User programmable data format (programmable framing
code)
2 kbytes data cache on-chip to avoid data loss and
reduce host CPU overhead
Filtering of packets 30 and 31 WST/NABTS
Choice of clock frequencies, direct-in clock or crystal
oscillator
Parallel interface, Motorola, Intel and digital video bus
I
Data transport by digital video bus
Choice of programmable interrupt, DMA or polling
driven
Data type selectable video line by video line, with
Vertical Blanking Interval and Full Field mode
DD
sync(p-p)
i(CVBS)(p-p)
Multimedia video data acquisition circuit
2
C-bus control
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
(Intel Corporation) compatible
supply voltage
supply current
sync voltage (peak-to-peak value)
input voltage on pin CVBS0 and CVBS1
(peak-to-peak value)
crystal frequency; see note 1
operating ambient temperature
QFP44
NAME
plastic quad flat package; 44 leads (lead length 2.35 mm);
body 14
14
PARAMETER
2.2 mm
3
DESCRIPTION
2
The SAA5284 is a Vertical Blanking Interval (VBI) and Full
Field (FF) video data acquisition device tailored for
application on PC add-in cards, PC mother-boards, set-top
boxes and as a SAA5250 replacement. The IC in
combination with a range of software modules will acquire
most existing formats of broadcast VBI and FF data.
These associated software modules are available under
licence. Scope is provided for acquiring some as yet
unspecified formats. The SAA5284 incorporates all the
data slicing, parallel interface, data filtering and control
logic. It is controlled either by a parallel interface or
I
digital video bus where no parallel port is available. It is
available in a QFP44 package.
2
C-bus. It can output ASCII VBI data as pixels on the
PACKAGE
Single IC with few external components and small
footprint QFP44 package
Optimized for EMC.
GENERAL DESCRIPTION
4.5
0.1
0.7
MIN.
20
Objective specification
5.0
72
0.3
1.0
12.0
TYP.
SAA5284
5.5
95
0.6
1.4
+70
MAX. UNIT
SOT205-1
VERSION
V
mA
V
V
MHz
C