5.0VDC or 3.3VDC • 5 X 7mm SMD • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSL and ASSV
FEATURES:
• Integrated Spread Spectrum technology
• Standard TTL or HCMOS output.
• Meets jitter requirements for all major
CISC, RISC and DSP processors
• 8 MHz to 128 MHz output frequency range.
CENTER
480.00 MHz
MKR 1.05 MHz
-15.66 dB
15.7dB EMI reduction
5th Harmonic of 96 MHz
APPLICATIONS:
•
•
•
•
•
•
•
•
Medical
Printers
Scanners
Modems
Telecommunications
Aerospace
Copier
Automotive
ADDITIONAL BENEFITS:
•
•
•
•
•
•
•
•
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 5 X 7mm SMD packages
.
PIN CONFIGURATION:
Pin Number
1
2
3
4
Function
NC
GND
OUTPUT
VDC
MECHANICAL DIMENSIONS:
Table1
Dimension: Inches (mm)
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Rev. 2.4
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
23
5.0VDC or 3.3VDC • 5 X 7mm SMD • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSL and ASSV
Table 2
STANDARD ELECTRICAL
SPECIFICATIONS
PARAMETER
ASSL
ASSV
Frequency Range
(Fo)
8.000 MHz – 128.000 MHz
Operating Temperature (Topr)
-40°C to +85°C (See Ordering Options)
Storage Temperature
(Tsto)
- 65°C to +150°C
±100ppm max (See Ordering Options)
Frequency Stability vs. Temp
(dF/Fo)
Operating Supply Voltage (VDC)
5.0 VDC
3.3 VDC
Operating Input Current (IDD)
30 mA max
Duty Cycle
45/55
Rise Time
5.0 ns.
3.5 ns.
Fall Time
5.0 ns.
3.5 ns.
Output Voltage (VOH/VOL)
3.0VDC min. / 0.4 VDC max.
Start-up Time
10 ms max. 3 ms typ.
Aging
+/- 5ppm max. /year
Jitter (CCJ1)
225 ps typical
Jitter (CCJ2)
125 ps typical
Jitter (CCJ3)
135 ps typical
Jitter (CCJ4)
180 ps typical
Output Load
10-LSTTL or 15 pF
Bandwidth Accuracy
+/- 10%
Table 3
Conditions
+/-5 %
% max
15 pF
15 pF
+25°C
F = 8 MHz
F = 32 MHz
F = 64 MHz
F = 128 MHz
For detailed discussion of Spread Spectrum Clocking, read SSC application note at www.abracon.com/emi.ssc
FACTORY BANDWIDTH
SELECTION
FACTORY BANDWIDTH
SELECTION
FREQ.
(MHz)
ORDER
OPTION
8 – 10
10 - 12
12 – 14
14 - 16
16 – 20
20 - 24
24 – 28
28 - 32
32 – 40
40 - 48
48 – 56
56 - 64
64 - 80
80 - 96
96 - 112
112 - 128
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Rev. 2.4
CENTER SPREAD
(%)
C1
±1.4
±1.3
±1.2
±1.1
±1.4
±1.3
±1.2
±1.1
±1.4
±1.3
±1.2
±1.1
±1.4
±1.3
±1.2
±1.1
C2
±1.2
±1.1
±0.9
±0.9
±1.2
±1.1
±0.9
±0.9
±1.2
±1.1
±0.9
±0.9
±1.2
±1.1
±0.9
±0.9
C3
±0.6
±0.5
±0.5
±0.4
±0.6
±0.5
±0.5
±0.4
±0.6
±0.5
±0.5
±0.4
±0.6
±0.5
±0.5
±0.4
C4
±0.5
±0.4
±0.4
±0.3
±0.5
±0.4
±0.4
±0.3
±0.5
±0.4
±0.4
±0.3
±0.5
±0.4
±0.4
±0.3
D1
-3.0
-2.7
-2.5
-2.3
-3.0
-2.7
-2.5
-2.3
-3.0
-2.7
-2.5
-2.3
-3.0
-2.7
-2.5
-2.3
DOWN SPREAD
(%)
D2
-2.2
-1.9
-1.8
-1.7
-2.2
-1.9
-1.8
-1.7
-2.2
-1.9
-1.8
-1.7
-2.2
-1.9
-1.8
-1.7
D3
-1.9
-1.7
-1.5
-1.4
-1.9
-1.7
-1.5
-1.4
-1.9
-1.7
-1.5
-1.4
-1.9
-1.7
-1.5
-1.4
D4
-0.7
-0.6
-0.6
-0.5
-0.7
-0.6
-0.6
-0.5
-0.7
-0.6
-0.6
-0.5
-0.7
-0.6
-0.6
-0.5
MODULATION
RATE (kHz)
31.25 – 39.06 kHz
39.06 – 46.88 kHz
46.88 – 54.69 kHz
54.69 – 62.50 kHz
31.25 – 39.06 kHz
39.06 – 46.88 kHz
46.88 – 54.69 kHz
54.69 – 62.50 kHz
31.25 – 39.06 kHz
39.06 – 46.88 kHz
46.88 – 54.69 kHz
54.69 – 62.50 kHz
31.25 – 39.06 kHz
39.06 – 46.88 kHz
46.88 – 54.69 kHz
54.69 – 62.50 kHz
NOTE: Left blank if standard
•
All specifications and markings subject to change without notice
ABRACON
24
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
5.0VDC or 3.3VDC • 5 X 7mm SMD • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSL and ASSV
ORDERING OPTIONS
ASSL(V) - FREQUENCY - TEMPERATURE - FREQ. STABILITY - BANDWIDTH - PACKAGING
Fo in MHz as; XXX.XXXX
OPERATING VOLTAGE
ASSV = 3.3 ± 5% VDC
ASSL = 5.0 ± 5% VDC
-E for -20°C to 70°C
-F for -30°C to 70°C
-N for -30°C to 85°C
-L for -40°C to 85°C
-R for ± 25 ppm max
-K for ± 30 ppm max
-H for ± 35 ppm max
-C for ± 50 ppm max
-T = Tape and Reel
-CX = Center Spread
-DX = Down Spread
(See table for 3 selection)
Example:
ASSV-048.0000-E-C-C1-T
Would be the part number for a 48.0000MHz, ±1.2% center spread with a +/-50ppm center frequency accuracy
.
Note:
As of June 2003, this product is under development. Please contact Abracon Corporation for availability.
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Rev. 2.4
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
25
嵌入式系统
