5.0VDC or 3.3VDC • 10 X 14mm SMD • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSM and ASSML
FEATURES:
•
Integrated Spread Spectrum technology
•
Standard TTL or HCMOS output.
•
Meets clock jitter requirements for all major
CISC, RISC and DSP processors
•
Wide frequency range from 4 MHz to 128 MHz.
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 10 X 14mm SMD package.
MECHANICAL DIMENSIONS:
PIN CONFIGURATION:
Pin Number
1
4
5
8
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
20
Rev. 2.4
5.0VDC or 3.3VDC • 10 X 14mm SMD • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSM and ASSML
Table 2
STANDARD
ELECTRICAL
SPECIFICATIONS
STANDARD
ELECTRICAL
SPECIFICATIONS
PARAMETER
Frequency Range
(Fo)
Operating Temperature
(Topr)
Storage Temperature
(Tsto)
Frequency Stability vs. Temp
(dF/Fo)
Operating Supply Voltage (VDC)
Operating Input Current (IDD)
Duty Cycle
Rise Time
Fall Time
Output Voltage
(VOH/VOL)
Start-up Time
Aging
Jitter (CCJ1)
Jitter (CCJ2)
Jitter (CCJ3)
Jitter (CCJ4)
Jitter (CCJ5)
Output Load
Bandwidth Accuracy
ASSM
ASSML
4.000 MHz – 128.000 MHz
-40°C to +85°C (See Ordering Options)
- 65°C to +150°C
±100 ppm max. (See Ordering Options)
5.0 VDC
30 mA max
45/55
5.0 ns.
3.5 ns.
5.0 ns.
3.5 ns.
3.0VDC min. / 0.4 VDC max.
10 ms max. 3 ms typ.
+/- 5ppm max. /year
625 ps typical
225 ps typical
125 ps typical
135 ps typical
180 ps typical
10-LSTTL or 15 pF
+/- 10%
3.3 VDC
Conditions
+/-5 %
% max
15 pF
15 pF
+25°C
F
F
F
F
F
=
=
=
=
=
4 MHz
8 MHz
32 MHz
64 MHz
128 MHz
Table 3
FREQ.
(MHz)
ORDER
OPTION
4–5
5-6
6-7
7-8
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
FACTORY
BANDWIDTH SELECTION
FACTORY
BANDWIDTH SELECTION
CENTER SPREAD
DOWN 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
±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
±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
±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
±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
-3.0
-2.7
-2.5
-2.3
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
-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
-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
-0.7
-0.6
-0.6
-0.5
MODULATION
RATE (kHz)
31.25
39.06
46.88
54.69
31.25
39.06
46.88
54.69
31.25
39.06
46.88
54.69
31.25
39.06
46.88
54.69
31.25
39.06
46.88
54.69
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
39.06
46.88
54.69
62.50
39.06
46.88
54.69
62.50
39.06
46.88
54.69
62.50
39.06
46.88
54.69
62.50
39.06
46.88
54.69
62.50
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
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
21
5.0VDC or 3.3VDC • 10 X 14mm SMD • HCMOS/ TTL
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS
ASSM and ASSML
ORDERING OPTIONS
ASSM(L) - FREQUENCY - TEMPERATURE - FREQ. STABILITY - BANDWIDTH - PACKAGING
Fo in MHz as; XXX.XXXX
-T for Tape and Reel
OPERATING VOLTAGE
ASSML = 3.3 ± 5% VDC
ASSM = 5.0 ± 5% VDC
-CX = Center Spread
-DX = Down Spread
(See table 3 for selection)
-E for
-F for
-N for
-L for
-20°C to 70°C
-30°C to 70°C
-30°C to 85°C
-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
Example:
ASSM-48.0000-E-C-C1-T
Would be the part number for a 48.0000MHz, ±1.2% center spread with a +/-50 ppm center frequency accuracy
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
22
Rev. 2.4
模拟与混合信号
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