ABRACON ASSH

5.0VDC or 3.3VDC • 8 PINDIP • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSH
• 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)
FEATURES:
Frequency (MHz)
APPLICATIONS:
ADDITIONAL BENEFITS:
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Medical
Printers
Scanners
Modems
Telecommunications
Aerospace
Copier
Automotive
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 8 pin DIP packages.
MECHANICAL DIMENSIONS:
PIN CONFIGURATION:
Pin Number
1
4
5
8
Function
NC
GND
OUTPUT
VDC
Table1
Dimensions: Inches (mm)
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
18
Rev. 2.4
NOTE: Left blank if standard • All specifications and markings subject to change without notice
29 Journey • Aliso Viejo, CA 92656 • USA
(949) 448-7070
•
F AX : (949) 448-8484
E-MAIL: [email protected] abracon.com • INTERNET ADDRESS: www.abracon.com
ABRACON
®
C O R P O R AT I O N
05/2003
5.0VDC or 3.3VDC • 8 PIN DIP • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSH
Table 2
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
ASSH
Operating Temperature (Topr)
0°C to +70°C
Storage Temperature
(Tsto)
- 65°C to +150°C
± 100 ppm max. (See Options)
Frequency Stability vs. Temp
(dF/Fo)
Operating Supply Voltage (VDC)
3.3 VDC
5.0 VDC
Frequency Range
(Fo)
15 – 90 MHz
15 – 120 MHz
Operating Input Current (IDD)
40 mA max
75 mA
Duty Cycle
45/55
45/55
Output Voltage (VOH/VOL)
2.4 VDC min.
4.0 VDC min.
Rise Time
5.0 typ.
3.5 typ.
Fall Time
3.2 typ.
Start-up Time
Aging
Jitter
Output Load
Modulation Frequency (Fm)
2.3 typ.
Conditions
+/-5 %
F = 90 MHz
% max
Load =15 pF, 10 –
90%
Load =15 pF, 10 –
90%
10 ms max. 3 ms typ.
+/- 5ppm max. /year
500 ps. max.
10-LSTTL or 15 pF
20 – 40 kHz
0°C to +70°C
15 – 120 MHz
Download Spread Spectrum Clocking application note on Abracon website at www.abracon.com/emi/ssc.
Table 3
FACTORY
BANDWIDTH
SELECTION
(±10%)
FACTOR
BANDWIDTH
SELECTION
OPTIONS:
BANDWIDTH %
Center Spread
C1
± 0.625
C2
± 1.25
C3
± 2.50
C4
± 5.00
ORDERING OPTION
ASSH - 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: ASSH-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 .
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Rev. 2.4
NOTE: Left blank if standard • All specifications and markings subject to change without notice
29 Journey • Aliso Viejo, CA 92656 • USA
(949) 448-7070
•
F AX : (949) 448-8484
E-MAIL: [email protected] abracon.com • INTERNET ADDRESS: www.abracon.com
ABRACON
®
C O R P O R AT I O N
05/2003
19