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8048H/8048H·1/8035HL/8035HL·1
CRYSTAL OSCILLATOR MODE
C1 =
5pF
±
1/2pF
+ STRAY < 5pF
C2
= CRYSTAL + STRAY < 8pF
C3
= 20pF ± 1pF + STRAY < 5pF
~
Cf-1_-"r--_~"'-_~Z
XTAL 1
cz
••
L
.
l
--T--
T--
- I
1-_-'-
__
.....
__
....:j3
XTAL Z
C;
CRYSTAL SERIES RESISTANCE
SHOULD
BE
LESS
THAN
75D AT 6
MHz
LESS
THAN
180D AT 3.6MHz
LC OSCILLATOR MODE
L
C NOMINAL 1
1
45pH
ZOpF
5.2 MHz
F
~
'"2iiiJLc'
120pH ZllpF 3.2 MHz
2
XTAL1
d
C
C~~
Z
L
_
'"[C
3 XTALZ
Cpp
~
1>010
pF PIN TO PIN
CAPACITANCE
EACH
C
SHOULD
BE
APPROXIAMTELY
2OpF.INCLUDING
STRAY
CAPACITANCE
DRIVING FROM EXTERNAL SOURCE
+IV
470D
....
+-
___
....;2'"1
XTALI
+5V
470D
L--+--=-tXTAL2
XTAL 1
MUST
BE
HIGH
35-65%
OF
THE
PERIOD
AND
XTAL 2
MUST
BE
HIGH
35-65'10
OF
THE
PERIOD. RISE
AND
FALL
TIMES
MUST
NOT
EXCEED
20nl.
6-7
AFN-01491A-07