SAA5261PS Philips Semiconductors, SAA5261PS Datasheet - Page 20

• Manufacturer Part Number: SAA5261PS
• Description: 10-page intelligent teletext decoders
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Notes
1. All RGB current is sourced from the RGBREF pin. The maximum effective series resistance between RGBREF and
2. Crystal order number 4322 143 05561.
TIMING CHARACTERISTICS
Notes
1. This parameter is determined by the user software. It must comply with the I
2. This value gives the auto-clock pulse length which meets the I
3. The rise time is determined by the external bus line capacitance and pull-up resistor. It must be less than 1 s.
4. The maximum capacitance on bus lines SDA and SCL is 400 pF.
1998 Apr 22
C
f
C
C1
C0
R
T
X
X
SCL timing
t
t
t
t
t
SDA timing
t
t
t
t
t
t
t
SYMBOL
SYMBOL
xtal
HD;STA
LOW
HIGH
r(SCL)
f(SCL)
SU;DAT1
HD;DAT
SU;STA
SU;STO
BUF
r(SDA)
f(SDA)
xtal
j
d
RYSTAL SPECIFICATION
L
res
10-page intelligent teletext decoders
the R, G and B pins is 150 .
Alternative, the SCL pulse must be timed by software.
nominal frequency
load capacitance
series capacitance
parallel capacitance
resonance resistance T
temperature range
adjustment tolerance
drift
START condition hold time
SCL LOW time
SCL HIGH time
SCL rise time
SCL fall time
data set-up time
data hold time
repeated START set-up time
STOP condition set-up time
bus free time
SDA rise time
SDA fall time
PARAMETER
PARAMETER
: note 2
T
T
T
amb
amb
amb
amb
CONDITIONS
= 25 C
= 25 C
= 25 C
= 25 C
4.0 s
4.7 s
4.0 s
1.0 s
0.3 s
250 ns
0 ns
4.7 s
4.0 s
4.7 s
1.0 s
0.3 s
INPUT
20
note 1
note 1
note 3
note 1
note 1
note 1
note 1
note 1
note 3
20
4.0 s; note 2
0.3 s; note 4
0.3 s; note 4
MIN.
2
C-bus specification for the special crystal frequency.
OUTPUT
SAA5261; SAA5262; SAA5263
12
32
18.5
4.9
35
+25
2
C-bus specification.
TYP.
I
4.0 s
4.7 s
4.0 s
1.0 s
0.3 s
250 ns
0 ns
4.7 s
4.0 s
4.7 s
1.0 s
0.3 s
2
C-BUS SPECIFICATION
+70
50
30
Product specification
MAX.
10
10
6
6
MHz
pF
fF
pF
UNIT
C