Pl tronics, Inc.
.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
SQ3345, SQ2245 CMOS Series
SQ3345: CMOS with Enable/ Disable, SQ2245 without Enable/Disable
Half Size (8 Pin DIP) Thru-Hole Metal Clock Oscillator
650 kHz
–
69.999 MHz
Standard Specifications
Overall Frequency Stability
Operating Temperature Range
Supply Voltage (Vcc)
Symmetry (Duty Cycle)
Logic Levels
Output Load
SQ33: Enable/Disable Option
(E/D)
± 50 PPM, ± 25 PPM, ± 20 PPM over Operating Temperature Range
0 to +70° C is standard, but can be extended to
-
40 to +85°C for certain frequencies
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
Standard load is 15 pF (typ. 1 ASIC) maximum, see Test Circuit 3 (consult factory for
heavier
loads)
Output enabled when Pin #1 is open or at Logic “1”; Output disabled when Pin #1 is at Logic “0”.
Max. Supply Current
Icc (mA) w/ 15pF load
3.3V
5.0V
Rise and Fall Time
Tr & Tf (nS) w/ 15pF load
Typical
Maximum
Frequency Range
(MHz)
0.650 –
10.001 –
26.000 –
35.000 –
50.001 –
10.000
25.999
34.999
50.000
69.999
Packaging
Tubes
SC
Mechanical: inches (mm)
0.492 (12.5) MAX
PLE
0.492 (12.5) MAX
DI
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
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.
0 .236 (6.0)
MAX
0.031 (0.8)
0.300 (7.62)
0.300 (7.62)
OUT
5
8
Vcc
ON
SQ33 45 E
Model
SQ33 with E/D
SQ22 no E/D
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
20 = ± 20 PPM
TI
7
10
10
20
15
25
20
30
25
35
Part Numbering Guide
3.0
2.5
2.5
2.5
2.5
4.0
3.5
3.5
3.5
3.5
V -- 60.0M - XXX
(Internal Code or blank)
Special Specifications (choose all that apply)
Blank: Std Specs ( 0 to +70
°
C, 40/60% Symmetry)
E: Extended Operating Temperature Range (- 40 to +85
°
C)
S: 45/55% Symmetry at 50% of Vcc
not to scale
0 .250 (6.35)
MAX
Pl tronics, Inc.
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
NU
E
Frequency in MHz
Supply Voltage (Vcc)
Blank: 5.0V
± 10%
V: 3.3 volts
± 10%
0 .020
(.51)
4
1
GND
SQ33 Pin 1 = E/D
SQ22 Pin 1 = N.C.
Nov 2006
D
15
Making friends through disassembly
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