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 0 to +70 C is standard, but can be extended to 40 to +85°C for certain frequencies
± 50 PPM, ± 25 PPM, ± 20 PPM over Operating Temperature Range
-
°
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
Output Load
SQ33: Enable/Disable Option
(E/D)
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”.
Rise and Fall Time
Max. Supply Current
Icc (mA) w/ 15pF load
Frequency Range
(MHz)
Tr & Tf (nS) w/ 15pF load
Typical
3.0
Maximum
4.0
3.3V
7
5.0V
10
–
0.650 10.000
–
10.001 25.999
10
15
20
25
20
25
30
35
2.5
2.5
2.5
2.5
3.5
3.5
3.5
3.5
–
26.000 34.999
–
35.000 50.000
–
50.001 69.999
Part Numbering Guide
SQ33 45 E V -- 60.0M - XXX (Internal Code or blank)
Packaging
Tubes
Frequency in MHz
Model
SQ33 with E/D
SQ22 no E/D
Supply Voltage (Vcc)
Blank: 5.0V ± 10%
V: 3.3 volts ± 10%
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
20 = ± 20 PPM
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
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
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)
0.300 (7.62)
OUT
0.492 (12.5) MAX
PLE
0.031 (0.8)
MAX
Vcc
5
8
0 .020
(.51)
4
1
GND
0 .250 (6.35)
MAX
SQ33 Pin 1 = E/D
SQ22 Pin 1 = N.C.
Nov 2006
15
Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com