Pl tronics, Inc.
.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
SM1145JD Series
4 Lead Surface Mount Plastic Clock Oscillator
CMOS with Enable/ Disable, 3rd Overtone Crystal Used
Low Jitter
–
70.00 MHz 170.00 MHz
Consult factory for higher frequencies
Solder Pad Compatible to our SM11 Series, Epson SG615 & SG8002J
Standard Specifications
Overall Frequency Stability
SM1145JD: ± 50 PPM, SM1144JD: ± 25 PPM, SM1120JD: ± 20 PPM over Operating Temp. Range
-
°
Operating Temperature Range 0 to +70 C is standard, but can be extended to 40 to +85°C for certain frequencies
Supply Voltage (Vcc)
Symmetry (Duty Cycle)
Logic Levels
5.0 volts and 3.3 volts available
40/60 to 60/40% is standard, but 45/55% at 50% of Vcc is also available (see Waveform 1)
Logic “1” 90% of Vcc MIN; Logic “0” 10% of Vcc MAX
1 pS RMS maximum, from 12 kHz to 20 MHz from carrier
Jitter
Output Load
Standard load is 15pF maximum, see Test Circuit 3 (consult factory for heavier loads)
Enable/Disable Option (E/D)
Output enabled when Pin #1 is open or at Logic “1”; Output disabled when Pin #1 is at Logic “0”.
Frequency Range
(MHz)
Max. Supply Current
Icc (mA) w/ 15pF load
Rise and Fall Time
Tr & Tf (nS) w/ 15pF load
2.5V, 3.3V
5.0V
45
80
90
Typical
2.0
1.2
0.5
0.5
Maximum
3.0
–
70.000 79.999
30
40
50
60
–
80.000 110.000
1.5
1.0
1.0
–
110.001 119.999
–
120.000 170.000
95
Part Numbering Guide
Portions of the part number that appear after the frequency may not be marked on part (C of C provided)
SM11 45 JD Y - 70.0M - 30 - XXX (Internal Code or blank)
Non-Std Output Load
Packaging
Tube or
24mm tape
12mm pitch
Model
Blank = 15 pF max, 30 = 30 pF max, 50 = 50 pF max
Frequency in MHz
Special Specifications (choose all that apply)
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
20 = ± 20 PPM
°
Y: Std Specs (5.0V ± 10%, 0 to +70 C, 40/60% Symmetry)
°
E: Extended Operating Temperature Range (- 40 to +85 C)
S: 45/55% Symmetry at 50% of Vcc
V: Supply Voltage of 3.3 volts ± 10%
Consult factory for available frequencies and specs. Not all options available for all frequencies. A special part number may be assigned.
Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load
Mechanical: inches (mm)
not to scale
Solder Pads
Due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal code.
.15 (3.8)
.193 (4.9) MAX
.520 (13.2) MAX
4
1
3
4
Vcc
3
OUT
.05
(1.3)
For Best Performance,
E/D
1
GND
2
Do NOT allow any traces other
than ground under oscillators
(Even in buried layers)
2
.200 (5.08)
July 2002
.200 (5.08)
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
9
Pl tronics, Inc.