saa5246a NXP Semiconductors, saa5246a Datasheet - Page 26

• Manufacturer Part Number: saa5246a
• Description: Integrated Vip And Teletext Ivt1.0
• Manufacturer: NXP Semiconductors

Philips Semiconductors
CLOCK SYSTEMS
Crystal oscillator
The oscillator is a low amplitude, low distortion design operation 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 illustrated in Fig.12.
Table 5 Crystal characteristics.
January 1993
SYMBOL
Crystal (27 MHz, 3rd overtone)
C1
C0
C
Rr
R1
Xa
Xj
Xd
L
Integrated VIP and Teletext (IVT1.0)
handbook, full pagewidth
PARAMETER
series capacitance
parallel capacitance
load capacitance
resonant resistance
series resistance
ageing
adjustment tolerance
drift
3.3 k
1 nF
4.7 H
Fig.12 Crystal oscillator application diagram.
27 MHz 3rd
overtone
10 pF
15 pF
MIN.
100 nF
OSCOUT
OSCGND
OSCIN
V DD
26
OSCILLATOR
CRYSTAL
SAA5246A
TYP.
1.7
5.2
20
20
MLA847 - 1
MAX.
-
50
5
25
25
Product specification
SAA5246A
UNIT
pF
pF
pF
10
10
10
6
6
6
/yr