SAA5265 Просмотр технического описания (PDF) - Philips Electronics
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производитель
SAA5265 Datasheet PDF : 24 Pages
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Philips Semiconductors
10 and 1 page intelligent teletext decoders
Preliminary specification
SAA5264; SAA5265
SYMBOL PARAMETER
CONDITIONS
Analog inputs
CVBS0 AND CVBS1(PINS 23 AND 24)
Vsync
sync voltage
amplitude
Vi(v)(p-p)
video input voltage
(peak-to-peak value)
Zsource
VIH
source impedance
HIGH-level input
voltage
Ci
input capacitance
IREF (PIN 26)
RIREF
resistance from IREF resistor
to VSSA
tolerance = 2%
ADC0 TO ADC3 (PINS 9 TO 12)
VIH
HIGH-level input
voltage
Ci
input capacitance
Analog outputs
B, G AND R (PINS 32 TO 34)
Io(bl)
output current
(black level)
Io(max)
output current
(maximum intensity)
Io(70%max) output current
(70% of maximum
intensity)
RL
load resistance (to
VSSA)
CL
load capacitance
Analog input/output
VDDA = 3.3 V
VDDA = 3.3 V
intensity level
code = 15 (Dec)
VDDA = 3.3 V
intensity level
code = 0 (Dec)
resistor
tolerance = 5%
SYNC_FILTER (PIN 25)
Cstg
Vsync(nom)
storage capacitor
(to VSSA)
sync filter level
voltage with nominal
sync amplitude
MIN.
TYP.
0.1 0.3
0.7 1.0
0
−
3.0 −
−
−
−
24
−
−
−
−
−10 −
6.0 6.67
4.2 4.7
−
150
−
−
−
100
0.35 0.55
MAX.
0.6
1.4
250
VDDA +0.3
10
−
VDDA
10
+10
7.3
5.1
−
15
−
0.75
UNIT
V
V
Ω
V
pF
kΩ
V
pF
µA
mA
mA
Ω
pF
nF
V
2000 Jan 27
12
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