參數(shù)資料
型號: SAA5254P
廠商: NXP SEMICONDUCTORS
元件分類: 圖文
英文描述: Integrated VIP and teletext decoder IVT1.1X
中文描述: TELETEXT DECODER, PDIP40
文件頁數(shù): 20/36頁
文件大?。?/td> 805K
代理商: SAA5254P
1996 Nov 07
20
Philips Semiconductors
Preliminary specification
Integrated VIP and teletext decoder
(IVT1.1X)
SAA5254
CLOCK SYSTEMS
Crystal oscillator
The crystal is a conventional 2-pin design operating at 27 MHz. It is capable of oscillating with both fundamental and third
overtone mode crystals. External components should be used to suppress the fundamental output of the third overtone,
as shown in Fig.9. The crystal characteristics are given in Table 11.
Table 11
Crystal characteristics (see Fig.9)
SYMBOL
PARAMETER
TYP.
MAX.
UNIT
Crystal (27 MHz, 3rd overtone)
C1
C0
C
L
R
r
R1
X
a
X
j
X
d
series capacitance
parallel capacitance
load capacitance
resonance resistance
series resistance
ageing
adjustment tolerance
drift
1.7
5.2
20
20
50
±
5
×
10
6
±
25
×
10
6
±
25
×
10
6
pF
pF
pF
year
1
Fig.9 Crystal oscillator application diagram.
handbook, full pagewidth
3
2
SAA5254
MGD702
4
1
8.2 pF
CRYSTAL
OSCILLATOR
100 nF
15 pF
1 nF
3.3
μ
H
3.3 k
OSCGND
OSCIN
OSCOUT
VDD1
27 MHz
3rd
overtone
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