SQ3345, SQ2245 CMOS Series
Half Size (8 Pin DIP) Thru-Hole Metal Clock Oscillator
SQ3345: CMOS with Enable/ Disable, SQ2245 without Enable/Disable
650 kHz – 69.999 MHz
Standard Specifications
Overall Frequency Stability ± 50 PPM, ± 25 PPM, ± 20 PPM over Operating Temperature 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) 5.0 volts and 3.3 volts available
Symmetry (Duty Cycle) 40/60 to 60/40% is standard, but 45/55% at 50% of Vcc is also available (see Waveform 1)
Output Load
SQ33: 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”.
Rise and Fall Time
Frequency Range
(MHz) Typical Maximum
0.650 – 10.000 7 10 3.0 4.0
10.001 – 25.999 10 20 2.5 3.5
26.000 – 34.999 15 25 2.5 3.5
35.000 – 50.000 20 30 2.5 3.5
Part Numbering Guide
SQ33 45 E V -- 60.0M - XXX (Internal Code or blank)
Consult factory for available frequencies and specs. Not all options available for all frequencies. A special part number may be assigned.
Mechanical: not to scale
inches (mm)
50.001 – 69.999 25 35 2.5 3.5
Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www .pletronics.com 15
Nov 2006
Pl tronics, Inc.
Standard load is 15 pF (typ. 1 ASIC) maximum, see Test Circuit 3 (consult factory for heavier loads)
Tr & Tf (nS) w/ 15pF load
Packaging
Tubes
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.
Model
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
Frequency in MHz
Special Specifications (choose all that apply)
Supply Voltage (Vcc)
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
20 = ± 20 PPM
Logic Levels Logic “1” 90% of Vcc MIN; Logic “0” 10% of Vcc MAX
SQ33 with E/D
SQ22 no E/D
Pl tronics, Inc.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
.
Max. Supply Current
Icc (mA) w/ 15pF load
3.3V 5.0V
Blank: 5.0V ± 10%
V : 3.3 volts ± 10%
0 .236 (6.0)
MAX
0 .020
(.51)
0 .250 (6.35)
MAX
0.492 (12.5) MAX 0.300 (7.62)
PLE
0.492 (12.5) MAX
0.300 (7.62)
1
4
8
5
SQ33 Pin 1 = E/D
SQ22 Pin 1 = N.C.
VccOUT
GND
0.031 (0.8)
