saa5254 NXP Semiconductors, saa5254 Datasheet - Page 20

• Manufacturer Part Number: saa5254
• Description: Integrated Vip And Teletext Decoder Ivt1.1x
• Manufacturer: NXP Semiconductors

Philips Semiconductors
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)
1996 Nov 07
handbook, full pagewidth
Crystal (27 MHz, 3rd overtone)
C1
C0
C
R
R1
X
X
X
a
j
d
Integrated VIP and teletext decoder
(IVT1.1X)
L
r
SYMBOL
series capacitance
parallel capacitance
load capacitance
resonance resistance
series resistance
ageing
adjustment tolerance
drift
3.3 k
1 nF
overtone
27 MHz
PARAMETER
3.3 H
3rd
Fig.9 Crystal oscillator application diagram.
15 pF
8.2 pF
100 nF
OSCGND
OSCOUT
OSCIN
20
V DD1
1
2
4
3
1.7
5.2
20
20
TYP.
OSCILLATOR
CRYSTAL
SAA5254
50
5
25
25
MAX.
10
10
10
MGD702
6
Preliminary specification
6
6
SAA5254
pF
pF
pF
year
UNIT
1