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SAA5261PS View Datasheet(PDF) - Philips Electronics

Part Name
Description
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SAA5261PS
Philips
Philips Electronics Philips
SAA5261PS Datasheet PDF : 28 Pages
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Philips Semiconductors
10-page intelligent teletext decoders
Product specification
SAA5261; SAA5262; SAA5263
SYMBOL PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
CRYSTAL SPECIFICATION: note 2
fxtal
nominal frequency
CL
load capacitance
C1
series capacitance Tamb = 25 °C
C0
parallel capacitance Tamb = 25 °C
Rres
resonance resistance Tamb = 25 °C
Txtal
temperature range
20
Xj
adjustment tolerance Tamb = 25 °C
Xd
drift
12
32
18.5
4.9
35
+25
+70
±50 × 106
±30 × 106
MHz
pF
fF
pF
°C
Notes
1. All RGB current is sourced from the RGBREF pin. The maximum effective series resistance between RGBREF and
the R, G and B pins is 150 .
2. Crystal order number 4322 143 05561.
TIMING CHARACTERISTICS
SYMBOL
PARAMETER
INPUT
OUTPUT
I2C-BUS SPECIFICATION
SCL timing
tHD;STA
tLOW
tHIGH
tr(SCL)
tf(SCL)
START condition hold time
SCL LOW time
SCL HIGH time
SCL rise time
SCL fall time
4.0 µs
4.7 µs
4.0 µs
1.0 µs
0.3 µs
note 1
note 1
4.0 µs; note 2
note 3
0.3 µs; note 4
4.0 µs
4.7 µs
4.0 µs
1.0 µs
0.3 µs
SDA timing
tSU;DAT1
tHD;DAT
tSU;STA
tSU;STO
tBUF
tr(SDA)
tf(SDA)
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
250 ns
0 ns
4.7 µs
4.0 µs
4.7 µs
1.0 µs
0.3 µs
note 1
note 1
note 1
note 1
note 1
note 3
0.3 µs; note 4
250 ns
0 ns
4.7 µs
4.0 µs
4.7 µs
1.0 µs
0.3 µs
Notes
1. This parameter is determined by the user software. It must comply with the I2C-bus specification.
2. This value gives the auto-clock pulse length which meets the I2C-bus specification for the special crystal frequency.
Alternative, the SCL pulse must be timed by software.
3. The rise time is determined by the external bus line capacitance and pull-up resistor. It must be less than 1 µs.
4. The maximum capacitance on bus lines SDA and SCL is 400 pF.
1998 Apr 22
20
 

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