19013 36th Ave. West Suite H Lynnwood, WA 98036, USA
SQ3345 Series
Half Size (8 Pin DIP) Metal Clock Oscillator
CMOS with Enable/ Disable
Lower Ringing Noise Option Available to Reduce EMI
Available in Thru-Hole or Surface Mount Configuration
Standard Specifications
–
650 kHz 69.999 MHz
Overall Frequency Stability
Operating Temperature Range 0 to +70 C is standard, but can be extended to 40 to +85°C for certain frequencies
SQ3345: ± 50 PPM, SQ3344: ± 25 PPM, SQ3320: ± 20 PPM over Operating Temp. 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
Ringing Noise
Enable/Disable Option (E/D)
Standard load is 15pF maximum, see Test Circuit 3 (consult factory for heavier loads)
Depends on frequency and output load. See EMI application note
Output enabled when Pin #1 is open or at Logic “1”; Output disabled when Pin #1 is at Logic “0”.
Rise and Fall Time
Supply Current
Icc (mA) w/ 15pF load
Frequency Range
(MHz)
Tr & Tf (nS) w/ 15pF load
Typical
6.5
Maximum
10.0
Typical
3.0
Maximum
4.0
–
0.650 10.000
–
10.001 25.999
15.0
18.0
25.0
32.0
20.0
25.0
30.0
35.0
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 V -- 60.0M - 30 - SMD
Surface Mount Option
Packaging
Tube or on Pads,
SMD: Bulk
Non-Std Output Load
Blank = 15 pF max, 30 = 30 pF max, 50 = 50 pF max
Frequency in MHz
Model
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
20 = ± 20 PPM
Special Specifications (choose all that apply)
°
Blank: Std Specs (5.0V ± 10%, 0 to +70 C, 40/60% Symmetry)
°
E: Extended Operating Temperature Range (- 40 to +85 C)
N: Lower Ringing Noise
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
Surface Mount
Solder Pads
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.
.270 (6.87)
MAX
.236 (6.0)
MAX
.300 (7.62)
.300 (7.62)
OUT Vcc
.492 (12.5) MAX
PLE
.492 (12.5) MAX
.031 (0.8)
5
8
5
8
.020
(.51)
8
1
5
4
4
1
4
1
GND
E/D
.250 (6.35)
MAX
.136 x .035
(3.45) x (.89)
.200 (5.08)
Pad (8X)
Jan 2002
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
15
Pl tronics, Inc.