INTEGRATED CIRCUITS
DATA SHEET
SAA5252
Line twenty-one acquisition and
display (LITOD)
Product specification
Supersedes data of March 1995
File under Integrated Circuits, IC02
1996 Jul 18
Philips Semiconductors
Product specification
Line twenty-one acquisition and display (LITOD)
FEATURES
•
Complete ‘stand-alone’ Line 21 decoder in one package
•
On-chip display RAM allowing full page Text mode
•
Enhanced character display modes
•
Full colour captions
•
RGB interface for standard colour decoder ICs
•
Automatic handling of Field 2 data
•
Automatic selection of (1H, 1V), (2H, 1V) or (2H, 2V)
scan modes
•
Onboard OSD facility using Character generator
•
RGB inputs to support existing OSD ICs
•
I
2
C-bus or ‘stand-alone’ pin control
•
Automatic data-ready signal generation on data
acquisition
•
Can decode signals recorded on standard VHS and
S-VHS tape.
QUICK REFERENCE DATA
SYMBOL
V
DD
I
DD
V
syn
V
vid
T
amb
T
stg
supply voltage
supply current
CVBS sync amplitude
CVBS video amplitude
operating ambient temperature
storage temperature
PARAMETER
−
0.1
0.7
−20
−55
MIN.
4.5
30
0.3
1.0
−
−
TYP.
5.0
−
0.6
1.4
+70
+125
GENERAL DESCRIPTION
SAA5252
The SAA5252 (LITOD) is a single-chip CMOS device,
which will acquire, decode and display Line 21 Closed
Captioning data from a 525-line composite video signal.
Operation as an On-Screen Display (OSD) device is also
possible. Normal and line progressive scan modes are
supported.
MAX.
5.5
V
UNIT
mA
V
V
°C
°C
ORDERING INFORMATION
TYPE
NUMBER
SAA5252P
SAA5252T
PACKAGE
NAME
DIP24
SO24
DESCRIPTION
plastic dual in-line package; 24 leads (600 mil)
plastic small outline package; 24 leads; body width 7.5 mm
VERSION
SOT101-1
SOT137-1
1996 Jul 18
2
Philips Semiconductors
Product specification
Line twenty-one acquisition and display (LITOD)
BLOCK DIAGRAM
SAA5252
VSS
19
V DD
18
V
7
DISPLAY
TIMING
H
8
i.c.
6
17
16
CHARACTER
GENERATOR
15
ROUNDING
ITALICS
AND
RGB
MULTIPLEXOR
14
13
9
10
11
PAGE
RAM
12
5
RGBREF
BLAN
R
G
B
BLANIN
RIN
GIN
BIN
DR
SDA
SCL
OSCIN
21
OSCGND
22
OSCILLATOR
CHARACTER
ROM
ADDRESSING
CODE
INTERPRETER
AND
ADDRESSING
OSCOUT
20
SAA5252
BLACK
IREF
23
24
SYNC SEPARATOR
AND
ACQUISITION TIMING
SERIAL/
PARALLEL
AND
PARITY
I
2
C
INTERFACE
3
4
CVBS
1
ADC
DATA
DETECTOR
CONTROL
2
I
2
C/DC
MBB623 - 1
Fig.1 Block diagram.
1996 Jul 18
3
Philips Semiconductors
Product specification
Line twenty-one acquisition and display (LITOD)
PINNING
SYMBOL
CVBS
I
2
C/DC
SDA
SCL
DR
i.c.
V
H
BLANIN
RIN
GIN
BIN
B
G
R
BLAN
RGBREF
V
DD
V
SS
OSCOUT
OSCIN
OSCGND
BLACK
IREF
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DESCRIPTION
composite video input; signal should be connected via a
100 nF capacitor
input selects I
2
C or Direct Control
serial data port for I
2
C-bus or mode select input for
direct control
serial clock input for I
2
C-bus or mode select input for
direct control
data-ready signal to microcontroller (active-LOW) or
mode select input for direct control
internally connected; connect to V
SS
for normal
operation
vertical reference input for display timing
horizontal reference input for display timing
video blanking input from external OSD device
RED video input from external OSD device
GREEN video input from external OSD device
BLUE video input from external OSD device
BLUE video output
GREEN video output
RED video output
video blanking output
input voltage defining output HIGH level for RGB pins
for closed captioning output
+5 V supply
0 V ground
oscillator output
oscillator input
oscillator ground
video black level storage input; connected to V
SS
via
100 nF capacitor
reference current input; connected to V
SS
via 27 kΩ
resistor
CVBS
I
2
C/DC
SDA
SCL
DR
i.c.
V
H
BLANIN
1
2
3
4
5
6
SAA5252
24 IREF
23 BLACK
22 OSCGND
21 OSCIN
20 OSCOUT
19
SAA5252
18
VSS
V DD
7
8
9
17 RGBREF
16 BLAN
15
R
RIN 10
GIN 11
BIN
12
MBB622 - 1
14 G
13
B
Fig.2 Pin configuration.
1996 Jul 18
4
Philips Semiconductors
Product specification
Line twenty-one acquisition and display (LITOD)
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
V
DD
V
Imax
V
Omax
V
dif
I
IOK
I
Omax
T
amb
T
stg
V
es
PARAMETER
supply voltage (all supplies)
maximum input voltage (any input)
maximum output voltage (any output)
difference between V
SS
and OSCGND
DC input or output diode current
maximum output current (each output)
operating ambient temperature
storage temperature
electrostatic handling
human body model
machine model
Notes
1. This maximum value has an absolute maximum of 6.5 V independent of V
DD
.
note 2
note 3
−2000
−200
note 1
note 1
CONDITIONS
MIN.
−0.3
−0.3
−
−
−
−
−20
−55
SAA5252
MAX.
+6.5
V
V
DD
+ 0.5 V
V
DD
+ 0.5 V
±0.25
±20
±10
+70
+125
+2000
+200
V
UNIT
mA
mA
°C
°C
V
V
2. The human body model ESD simulation is equivalent to discharging a 100 pF capacitor via a 1.5 kΩ resistor, which
produces a single discharge transient. Reference
“Philips Semiconductors Test Method UZW-BO/FQ-A302 (similar
to MIL-STD 883C method 3015.7)”.
3. The machine model ESD simulation is equivalent to discharging a 200 pF capacitor via a resistor and series inductor
with effective dynamic values of 25
Ω
and 2.5
µH,
which produces a damped oscillating discharge. Reference
“Philips Semiconductors Test Method UZW-BO/FQ-B302 (similar to EIAJ IC-121 Test Method 20 condition C)”.
Quality
This device will meet the requirements of the
“Philips Semiconductors General Quality Specification UZW-BO/FQ-0601”
in accordance with
“Quality Reference Handbook (order number 9397 750 00192)”.
This details the acceptance criteria
for all Q & R tests applied to the product.
1996 Jul 18
5
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