LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATOR
ASSM/ASSML SERIES
*RoHS COMPLIANT
APPLICATIONS:
• Telecommunications.
• Capital equipment.
• Aerospace.
• Consumer electronics, printers.
• Medical equipment.
| | | | | | | | | | | | | |
14.27 x 10.7 x 5.3mm
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!
STANDARD SPECIFICATIONS:
PARAMETERS
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
Full 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
CONDITIONS
3.500MHz ~ 128.000MHz
-40°C to +85°C (See Ordering Options)
-65°C to +150°C
± 100 ppm max. (See Ordering Options)
5.0 Vdc
3.3 Vdc
30 mA max.
45/55
5.0 nS
3.5 nS
5.0 nS
3.5 nS
3.0 Vdc min. / 0.4 Vdc max.
10 mS max. / 3 mS typ.
± 5 ppm max. / year
625 pS typ.
225 pS typ.
125 pS typ.
135 pS typ.
180 pS typ.
10 - LS TTL or 15 pF
± 10 %
± 5%
% max.
15 pF
15 pF
+25°C
F = 4 MHz
F = 8 MHz
F = 32 MHz
F = 64 MHz
F = 128 MHz
OUTLINE DRAWING:
Recommended Land Pattern
PIN
1
2
3
4
5
FUNCTION
Input
Input-GND
GND
Output
Output
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
rev2.1-5/06
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATOR
ASSM/ASSML SERIES
*RoHS COMPLIANT
| | | | | | | | | | | | | |
14.27 x 10.7 x 5.3mm
OPTIONS AND PART IDENTIFICATION (Left blank if standard):
ASSM(L) - Frequency - Temperature - Frequency Stability - Bandwidth - Packaging
Operating Voltage:
- ASSML = 3.3 ± 5 % Vdc
- ASSM = 5.0 ± 5 % Vdc
Temperature options:
-
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
Frequency stability option:
-
R
for ± 25 ppm max.
-
K
for ± 30 ppm max.
-
H
for ± 35 ppm max.
-
C
for ± 50 ppm max.
Bandwidth option:
-
CX
= Center Spread
-
DX
= Down Spread
(See table above for selection options)
Packaging option:
-
T
for Tape and Reel
* Example: ASSM-48.000-E-C-C1-T would be the part number for a 48.000MHz,
±1.2% certer spread with a ± 50 ppm center frequency accuracy.
FACTORY BANDWIDTH SELECTION:
FREQ.
(MHz)
Order
Options
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
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
± 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
DOWN SPREAD (%)
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
(KHz)
31.25 - 39.06
39.06 - 46.88
46.88 - 54.69
54.69 - 62.50
31.25 - 39.06
39.06 - 46.88
46.88 - 54.69
54.69 - 62.50
31.25 - 39.06
39.06 - 46.88
46.88 - 54.69
54.69 - 62.50
31.25 - 39.06
39.06 - 46.88
46.88 - 54.69
54.69 - 62.50
31.25 - 39.06
39.06 - 46.88
46.88 - 54.69
54.69 - 62.50
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
rev2.1-5/06
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
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