5 Vdc or 3.3 Vdc • ULTRA MINIATURE CERAMIC SURFACE MOUNT • TIGHT STABILITY
CRYSTAL CLOCK OSCILLATORS
ASF1 and ASFL1
FEATURES:
• Compact and Low in Height (1.2 mm max.).
• Low Current Consumption; 5 Vdc or 3.3 Vdc.
• Enable / disable Function.
• Suitable for High Density SMT.
• Tight Stability Option.
APPLICATIONS:
• CCD Clock for VTR Camera.
• Equipment connected to PC or PC Cards.
• Small, Flat size equipment
• PCMCIA.
STANDARD SPECIFICATIONS
PARAMETERS
AS
MHz - 25 MHz
AS F L1
Frequency Range
3.5
F1
Frequency Range
(F
o
)
1.5 MHz -
AT
Operation Mode
Fundamental,
90.0 MHz
Operating Temperature
Operating Temperature(T
OPR
)
-10°C -10°C to + 60°C
Options)
to + 60° C
(See
Storage Temperature (T
STO
)
Temperature
-40°C to + C
Storage
-55°C to + 125° 85°C
Frequency Tolerance
@(
∆F
/ F
o
)
± 100ppm max.
(See Options)
Frequency Stability
25°C
±50 ppm max.
(See Options)
Supply Voltage
(V
dd
)
5±50 ppm max.
(See Options)
3.3 Vdc ± 10%
Vdc ± 10%
Frequency Stability over Temp.
Input Current
(I
dd
)
30 m MHz
Equivalent Series Resistance
200
Ω
for 3.5A max< F < 4.0 MHz
(ESR) Maximum
150/
Ω
formax.MHz < F < 6.0 MHz
Duty Cycle or Symmetry
40 60% 4.0
(See Options)
100
Ω
for66.0 MHz < F < 10.0 MHz
Rise and Fall Times (T
R
/
T
F
)
ns max.
80 15 pF for FMHz < F < 14.0 MHzpF
Ω
for 10 < 60 MHz
_
15
Output Load
10TTL or
_
50 15 pF for FMHz < F < 25 MHz
Ω
for 14 > 60 MHz
5TTL or
Shunt Capacitance C
0
7 pF max.
Output Voltage
(V
OH
)
“1” 0.9 * V
dd
min.
Load Capacitance C
L
(V )
16 p F
(See Option)
max.
“0” 0.1* V
dd
OL
Drive Level
100 µΩ max.
Stand-By Function
(V
IH
)
“1” or Open: Oscillation
> 2.2V
_
Aging
@
25° C First Year
± 5 pp m max.
“0”:Output disabled (No Oscillation)
< 0.8V
(V
IL
)
Insulation Resistance
500
M
Ω
min. at 100 Vdc ± 15V
For test circuit, waveforms, please see page 67.
Environmental and mechanical specifications on page 68, Group 2.
Marking, see page 78. Tape and Reel, (1,000 pcs./reel) see pages 74-75.
Connect a By-Pass capacitor 0.01
µF
between Vdd and GND. See page 60.
PIN
N0.
FUNCTION
SIDE VIEW
0.045 max.
(1.2)
1
Stand-by
2
GND / Case
3
Output
4
- 32 -
V
dd
RECOMMENDED
LAND PATTERN
BOTTOM VIEW
ORDERING OPTIONS
AS FX 1 - Frequency - Overall Frequency Stability - Duty Cycle
-
Packaging
Blank or L
XX.XXXXX MHz
-Y
-J
-R
-K
-H
-C
for ± 10 ppm max**
for ± 20 ppm max
for ± 25 ppm max
for ± 30 ppm max
for ± 35 ppm max
for ± 50 ppm max
-T
(Tape & Reel)
-S for 45 / 55%
@
1
/
2 Vdd
(**) Depending on Frequency
Standard Operating Temperature Only
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
ABRACON
- 32 -
®
NOTE: Left blank if standard
•
All specifications and markings subject to change without notice
C O R P O R AT I O N
29 Journey • Aliso Viejo, CA 92656 • USA
(949) 448-7070
•
F
AX
: (949) 448-8484
E-
MAIL
:
abinfo
@
abracon.com •
I
NTERNET
A
DDRESS
:
www.abracon.com
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
