SAA5252 查看數據表（PDF） - Philips Electronics
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SAA5252 Datasheet PDF : 20 Pages
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Philips Semiconductors
Line twenty-one acquisition and display (LITOD)
Product specification
SAA5252
CHARACTERISTICS
VDD = 5 to 5.5 V; VSS = 0 V; Tamb = −20 to +70 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
Supplies
VDD
supply voltage
4.5
IDDtot
total supply current
−
Inputs
CVBS (PIN 1)
Vsyn
Vvid(p-p)
sync voltage amplitude
video voltage amplitude
(peak-to-peak value)
Vdat
caption data voltage
amplitude
Zsource
VI
source impedance
input switching voltage level
of sync separator
ZI
input impedance
CI
input capacitance
IREF (PIN 24)
R24
resistor to ground
V24
voltage on pin 24
H (PIN 8)
VIL
LOW level input voltage
VIH
HIGH level input voltage
ILI
input leakage current
VI = 0 to VDD
IImax
maximum input current
CI
input capacitance
tr
pulse rise time
tf
pulse fall time
tW
pulse width
scan mode 1H
scan mode 2H
0.1
0.7
0.25
−
1.7
2.5
−
−
−
−0.3
2.0
−10
−1
−
−
−
1
1
V (PIN 7)
VIL
VIH
ILI
IImax
CI
tr
tf
tW
LOW level input voltage
HIGH level input voltage
input leakage current
maximum input current
input capacitance
pulse rise time
pulse fall time
pulse width
VI = 0 to VDD
−0.3
2.0
−10
−1
−
−
−
1
TYP.
5.0
30
0.3
1.0
0.35
−
2.0
5
−
27
1⁄2VDD
−
−
−
−
−
−
−
12
6
−
−
−
−
−
−
−
−
MAX.
UNIT
5.5
V
−
mA
0.6
V
1.4
V
0.49
V
250
Ω
2.3
V
−
kΩ
10
pF
−
kΩ
−
V
+0.8
V
VDD + 0.5 V
+10
µA
+1
mA
10
pF
5
µs
5
µs
63
µs
31
µs
+0.8
V
VDD + 0.5 V
+10
µA
+1
mA
10
pF
5
ns
5
ns
−
µs
1996 Jul 18
6
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