5.0VDC or 3.3VDC • 14 PIN DIP • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSO
FEATURES:
•
Integrated Spread Spectrum technology
• Standard TTL or HCMOS output.
• Meets jitter requirements for all major
CISC, RISC and DSP processors
• Frequency Range of 15 to 120 MHz @ 5.0 VDC.
• Frequency Range of 15 to 90 MHz @ 3.3 VDC.
Amplitude (dB)
Frequency (MHz)
APPLICATIONS:
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Medical
Printers
Scanners
Modems
Telecommunications
Aerospace
Copier
Automotive
ADDITIONAL BENEFITS:
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Reduce emissions up to 20 dB.
Systemic approach to EMI.
Highly cost effective compared to other methods.
Eliminate need for individual node suppression.
Eliminate need for expensive shielding.
Reduce component count.
Reduce PCB layer count.
Drop- in replacement for 14 pin DIP packages.
MECHANICAL DIMESIONS:
PIN CONFIGURATION:
Pin Number
1
7
8
14
Table 1
Function
NC
GND
OUTPUT
VDC
Dimensions: Inches (mm)
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
NOTE: Left blank if standard
•
All specifications and markings subject to change without notice
ABRACON
®
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
C O R P O R AT I O N
05/2003
16
Rev. 2.4
5.0VDC or 3.3VDC • 14 PIN DIP • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSO
Table 2
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
ASSO
Conditions
Operating Temperature (Topr)
0°C to +70°C
Storage Temperature
(Tsto)
- 65°C to +150°C
±100ppm max. (See Options)
Frequency Stability vs. Temp
(dF/Fo)
Operating Supply Voltage (VDC)
3.3 VDC
5.0 VDC
+/-5 %
Frequency Range
(Fo)
15 – 90 MHz
15 – 120 MHz
Operating Input Current (IDD)
40 mA max
75 mA
F = 90 MHz
Duty Cycle
45/55
45/55
% max
Output Voltage (VOH/VOL)
2.4 VDC min.
4.0 VDC min.
Rise Time
5.0 typ.
3.5 typ.
Load =15 pF, 10 – 90%
Fall Time
3.2 typ.
2.3 typ.
Load =15 pF, 10 – 90%
Start-up Time
10 ms max. 3 ms typ.
Aging
+/- 5ppm max. /year
Jitter
500 ps. max.
0°C to +70°C
Output Load
10-LSTTL or 15 pF
Modulation Frequency (Fm)
20 – 40 kHz
15 – 120 MHz
Download Spread Spectrum Clocking application note on Abracon website at www.abracon.com/emi/ssc.
Table 3
FACTORY BANDWIDTH SELECTION (±10%)
FACTORY BANDWIDTH SELECTION OPTIONS:
BANDWIDTH %
Center Spread
C1
±
0.625
C2
±
1.25
C3
±
2.50
C4
±
5.00
ORDERING OPTION
ASSO - FREQUENCY - FREQ. STABILITY - BANDWIDTH
Fo in MHz as; XXX.XXXX
-R for ±25 ppm max
-K for ±30 ppm max
-H for ±35 ppm max
-C for ±50 ppm max
-Cx = Center Spread
(See table 3 for options)
Example:
ASSO-048.0000-C-C4
Would be the part number for a 48.0000 MHz, ±5.0% center spread with a +/-50 ppm center frequency
accuracy.
NOTE: Left blank if standard
•
All specifications and markings subject to change without notice
ABRACON
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Rev. 2.4
®
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
C O R P O R AT I O N
05/2003
17
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