LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATOR
ASSM/ASSML SERIES
FEATURES:
• Patented spread spectrum technology.
• Meets FCC and EMC Directive for EMI requirements.
• Standard TTL or HCMOS compatible output.
• Drop-in replacement for standard plastic SMD crystal oscillators
• Reduce electromagnetic emissions up to 20dB!
Pb
RoHS
Compliant
APPLICATIONS:
• Telecommunications.
• Capital equipment.
• Aerospace.
• Consumer electronics, printers.
• Medical equipment.
14.27 x 10.7 x 5.3mm
| | | | | | | | | | | | | | |
STANDARD SPECIFICATIONS:
ABRACON P/N:
Operating temperature:
Storage temperature:
ASSM-ASSML
0°C to + 70°C (see options)
-65°C to +150°C
Description
ASSML (3.3V)
Operating Voltage +/-5%
ASSM (5V)
Operating Voltage +/-5%
Frequency Range
Output Low Voltage @ 4 mA
Output Low Voltage @ 10 mA
Output High Voltage @ 4 mA
Output High Voltage @ 6 mA
Output Load
Rise Time
Fall Time
Output Clock Duty Cycle 4–8Mhz
Output Clock Duty Cycle 8Mhz >
F=4MHz
F=8MHz
Cycle-to-Cycle
Jitter
F=16MHz
F=32MHz
F=64MHz
F=128MHz
Parameter
V
DD
V
DD
F
O
V
OL1
V
OL2
V
OH1
V
OH2
CL
T
R1
T
F1
T
DCOUT
T
DCOUT
T
CCJ1
T
CCJ1
T
CCJ2
T
CCJ3
T
CCJ4
T
CCJ5
Min
3.125
4.750
4.000
---
---
2.4
2.0
---
2.0
2.0
40
45
---
---
---
---
---
---
Max
3.465
5.250
128.000
0.4
1.2
---
---
15
5.0
4.4
60
55
800
450
400
380
380
380
Unit
V
V
MHz
V
V
V
V
pF
ns
ns
%
%
ps
ps
ps
ps
ps
ps
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Revised: 06.09.09
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
Visit www.abracon.com for Terms & Conditions of Sale
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATOR
ASSM/ASSML SERIES
OPTIONS AND PART IDENTIFICATION
(Left blank if standard)
ASSM(L) - Frequency -
Operating Voltage
ASSM
5.0 ± 5% Vdc
ASSML
3.3 ± 5% Vdc
Pb
RoHS
Compliant
14.27 x 10.7 x 5.3mm
| | | | | | | | | | | | | | |
-
-
-
Packaging
T
Tape & Reel
(>1k)
Frequency Stability
R
±25ppm
K
±30ppm
H
±35ppm
C
±50ppm
E
F
N
L
Operation Temp.
-20°C to +70°C
-30°C to +70°C
-30°C to +85°C
-40°C to +85°C
Spread Type
Down Spread
See Table 2.1
Center Spread
See Table 2.1
Table 2.1 BANDWIDTH SELECTION
Center Spread (%)
(MHz)
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
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
C3
±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
Down Spread (%)
D1
-3
-2.7
-2.5
-2.3
-3
-2.7
-2.5
-2.3
-3
-2.7
-2.5
-2.3
-3
-2.7
-2.5
-2.3
-3
-2.7
-2.5
-2.3
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
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Revised: 06.09.09
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
Visit www.abracon.com for Terms & Conditions of Sale
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATOR
ASSM/ASSML SERIES
OUTLINE DIMENSIONS
Recommended Land Pattern
Pb
RoHS
Compliant
14.27 x 10.7 x 5.3mm
| | | | | | | | | | | | | | |
0.197 (5.0)
PIN NO.
1
2
3
4
FUNCTION
NC
GND
Output
Vdd
Dimension : Inches (mm)
REFLOW PROFILE
PACKING:
T= tape and reel (1,000pcs/reel)
Dimension : mm
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Revised: 06.09.09
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
Visit www.abracon.com for Terms & Conditions of Sale
嵌入式系统
