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PDF SAA5244AGP Data sheet ( Hoja de datos )

Número de pieza SAA5244AGP
Descripción Integrated VIP and teletext decoder IVT1.1
Fabricantes Philips 
Logotipo Philips Logotipo



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INTEGRATED CIRCUITS
DATA SHEET
SAA5244A
Integrated VIP and teletext decoder
(IVT1.1)
Product specification
File under Integrated Circuits, IC02
March 1992

1 page




SAA5244AGP pdf
Philips Semiconductors
Integrated VIP and teletext decoder
(IVT1.1)
Product specification
SAA5244A
PINNING
SYMBOL
VDD
OSCOUT
OSCIN
OSCGND
VSS
REF
REF+
BLACK
CVBS
IREF
VDD
POL
STTV/LFB
VCR/FFB
VSS
R
G
B
RGBREF
BLAN
VSS
COR
ODD/EVEN
Y
SCL
SDA
n.c.
i.c.
SOT129 SOT205A
DESCRIPTION
1 18
+5 V supply
2 19
27 MHz crystal oscillator output
3 20
27 MHz crystal oscillator input
4 21
0 V crystal oscillator ground
5 22
0 V ground
−−
negative reference voltage for the ADC. The pin should be connected to 0 V
6 23
positive reference voltage for the ADC. The pin should be connected to +5 V
7 24
video black level storage pin, connected to ground via a 100 nF capacitor
8 25
composite video input pin. A positive-going 1 V (peak-to-peak) input is required,
connected via a 100 nF capacitor
9 26
reference current input pin, connected to ground via a 27 kresistor
10 27
+5 V supply
11 28
STTV/LFB/FFB polarity selection pin
12 29
sync to TV output pin/line flyback input pin. Function controlled by an internal
register bit (scan sync mode)
13 32
PLL time constant switch/field flyback input pin. Function controlled by an
internal register bit (scan sync mode)
14 33
0 V ground
15 34
dot rate character output of the RED colour information
16 35
dot rate character output of the GREEN colour information
17 36
dot rate character output of the BLUE colour information
18 37
input DC voltage to define the output high level on the RGB pins
19 38
dot rate fast blanking output
20 39
0 V ground
21 40
programmable output to provide contrast reduction of the TV picture for mixed
text and picture displays or when viewing newsflash/subtitle pages; open drain
output
22 41
25 Hz output synchronized with the CVBS input’s field sync pulses to produce a
non-interlaced display by adjustment of the vertical deflection currents
23 42
24 43
25 44
dot rate character output of teletext foreground colour information open drain
output
serial clock input for the I2C-bus. It can still be driven during power-down of the
device
serial data port for the I2C-bus; open drain output. It can still be driven during
power-down of the device
4 to 7
not connected
30, 31
26 to 40 1 to 3
8 to 17
internally connected. Must be left open-circuit in application
March 1992
5

5 Page





SAA5244AGP arduino
Philips Semiconductors
Integrated VIP and teletext decoder
(IVT1.1)
Product specification
SAA5244A
SYMBOL
PARAMETER
Outputs
STTV
Gstt gain of STTV relative to video
input
Vtcs
VDCs
TCS amplitude
DC shift between TCS output
and nominal video output
IO output drive current
CL load capacitance
R, G AND B
VOL output voltage LOW
VOH output voltage HIGH
Zo
CL
IDC
tr
tf
BLAN
VOL
VOH
output impedance
load capacitance
DC current
output rise time
output fall time
output voltage LOW
output voltage HIGH
VOH output voltage HIGH
VOH allowed voltage at pin
CL load capacitance
tr output rise time
tf output fall time
ODD/EVEN
VOL output voltage LOW
VOH output voltage HIGH
CL load capacitance
tr output rise time
tf output fall time
CONDITIONS
MIN.
TYP.
MAX. UNIT
0.9 1.0 1.1
0.2 0.3 0.45 V
− − 0.15 V
− − 3.0 mA
− − 100 pF
IOL = 2 mA
IOH = 1.6 mA;
RGBREF
VDD2 V
10% to 90%
90% to 10%
0
RGBREF
0.25 V
RGBREF
0.2
RGBREF
+0.25 V
V
V
− − 200
− − 50 pF
− − −3.3 mA
− − 20 ns
− − 20 ns
IOL = 1.6 mA
IOH = 0.2 mA;
VDD = 4.5 V
IOH = 0 mA;
VDD = 5.5 V
with external pull-up
10% to 90%
90% to 10%
0
1.1
0.4 V
V
2.8 V
VDD
V
50 pF
20 ns
20 ns
IOL = 1.6 mA
IOH = 1.6 mA
0.6 to 2.2 V
2.2 to 0.6 V
0
VDD0.4
0.4 V
VDD
V
120 pF
50 ns
50 ns
March 1992
11

11 Page







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