參數(shù)資料
型號: SAA5561
廠商: NXP Semiconductors N.V.
英文描述: Enhanced TV microcontrollers with On-Screen Display OSD
中文描述: 與微控制器在強(qiáng)化電視屏幕顯示OSD
文件頁數(shù): 88/100頁
文件大?。?/td> 371K
代理商: SAA5561
2000 Feb 23
88
Philips Semiconductors
Preliminary specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA55xx
Notes
1.
2.
3.
Peripheral current is dependent on external components and voltage levels on I/Os.
Crystal order number 4322 143 05561.
If the 4322 143 05561 crystal is not used, then the formulae in the crystal specification should be used. Where
C
IO
= 7 pF, the mean of the capacitances due to the chip at XTALIN and at XTALOUT. C
ext
is a value for the mean
of the stray capacitances due to the external circuit at XTALIN and XTALOUT. The maximum value for the crystal
holder capacitance is to ensure start-up, C
osc
may need to be reduced from the initially selected value.
C
osc(typ)
= 2C
L
C
IO
C
ext
C
0(max)
= 35
1
2
(C
osc
+ C
IO
+ C
ext
)
4.
5.
XTALOUT
C
O
Crystal specification;
notes 2 and 3
output capacitance
10
pF
f
xtal
nominal frequency
fundamental
mode
12
MHz
C
L
C
1
R
r
C
osc
C
0
T
xtal
X
j
X
d
crystal load capacitance
crystal motional capacitance
resonance resistance
capacitors at XTALIN, XTALOUT
crystal holder capacitance
temperature range
adjustment tolerance
drift
20
-
note 4
+25
30
20
60
note 5
+85
±
50
×
10
6
±
100
×
10
6
pF
fF
pF
pF
°
C
T
amb
= 25
°
C
T
amb
= 25
°
C
T
amb
= 25
°
C
T
amb
= 25
°
C
T
amb
= 25
°
C
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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