SM7700H SERIES
n
n
CMOS COMPATIBLE
WITH
TRI−STATE OUTPUT
SURFACE MOUNT OSCILLATORS IN CERAMIC PACKAGE (7x5x1.9 mm)
STANDARD SPECIFICATIONS:
Frequency Range
Frequency Stability over Operating
Temperature Range
Operating Temperature Range
Operable Supply Voltage (Vcc)
Symmetry (Duty Cycle)
(See next page for definition.)
Input Current (Icc) & Rise & Fall Time
(Tr & Tf) & Jitter
Logic “1” & Logic “0” (See next page)
Output Load
Tri-state Output
Packaging (see page R1, Figure 4)
1.500 MHz – 69.999 MHz
(Consult factory for specific available frequencies)
±
50 PPM is standard, but
±
25 PPM is also available for
certain frequencies.
0 - 70°C is standard, but can be extended to
−40
to +85°C for
certain frequencies
5 Volt
±
10% is standard, but 3.3 Volt
±
10% also available
40/60 - 60/40% is standard, but 45/55% symmetry at 50% of Vcc
is also available.
Depends on frequency and output load. See next page.
90% of Vcc MIN.; 10% of Vcc MAX.
15 pF is standard. Contact factory for heavier loads.
Normal output when pin #1 is open (no connection);
Normal output when pin #1 is at logic “1”;
High-Impedance Output when pin #1 is at logic “0”.
16 mm tape, 178 mm, 254 mm or 330 mm reel: 1000 parts per reel.
For quantities <250: 100 parts per tray
PART NUMBERING GUIDE:
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The Pletronics part number for an SM7700H series oscillator consists of the following 3 elements:
1.
Overall Frequency Stability over Operating Temperature Range:
SM7745H:
±
50 PPM;
SM7744H:
±
25 PPM
Optional Alphabet Designator for Special Requirement:
SM7745HY: standard specifications;
SM7745HE: operating temperature range of -40 to +85°C;
SM7745HS: 45/55% symmetry at 50% of Vcc (CMOS);
SM7745HV: operates at Vcc = 3.3V
(There are other alphabet designators not listed here.)
Frequency of Operation in MHz
2.
3.
EXAMPLES: SM7745HV-50.000 MHz; SM7745HE-10.000 MHz; SM7744HY-50.000 MHz
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When customer’s requirements are non-standard, a special engineering part number will be assigned.
(continued)
Telephone: (425) 776-1880, Fax: (425) 776-2760, e-mail: ple-sales@pletronics.com
O9A
SM7700H SERIES
Input Current (Icc), Rise and Fall time with 15pF Load & Jitter
Frequency Range
(MHz)
1.500 – 10.999
11.000 – 23.999
24.000 – 29.999
30.000 – 45.999
46.000 – 69.999
Icc (mA)
Typical
5.0
10.0
15.0
20.0
37.0
Maximum
10.0
15.0
20.0
30.0
45.0
Tr & Tf (nS)
Typical
4.0
4.0
3.0
3.0
3.5
Maximum
5.0
5.0
5.0
5.0
4.5
Period Jitter RMS Values
à
contact factory
Typical
Maximum
à
à
à
à
à
à
à
à
à
à
Recommended Test Circuit with CMOS Load
T
R
Vcc
80% Logic 1
50% Logic 1
20% Logic 0
GND
Waveform
T
F
Logic 1 (90% Vcc MIN)
50% Logic 0
Logic 0 (10% Vcc MAX)
Symmetry
* CL (Capacitive Load): Includes the input capacitance of oscilloscope.
** 0.01µF
external
by-pass filter is recommended.
Package Outline (NOT TO SCALE):
PIN CONNECTIONS
0.197
(5.0±0.2)
PIN
1
2
3
CONNECTION
ENABLE/DISABLE INPUT
GROUND
OUTPUT
Vcc
0.276 (7.0±0.2)
0.075 (1.9) MAX
4
RECOMMENDED LAND PATTERN
0.071 (1.8)
0.200 (5.08)
#1
#2
0.102
(2.6)
#4
#3
0.047 (1.2)
.055 (1.4)
0.165 (4.2)
0.08 (2.0)
0.200 (5.08)
0.01uF
INCHES (MILLIMETERS)
October 2000
O9B
Pletronics Inc., 19013 36
th
Ave. W., Suite H, Lynnwood, WA 98036-5761 USA
单片机
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