参数资料
型号: SM7720HSY-FREQ-30
厂商: PLETRONICS INC
元件分类: XO, clock
英文描述: CRYSTAL OSCILLATOR, CLOCK, 1.5 MHz - 69.999 MHz, CMOS OUTPUT
文件页数: 1/1页
文件大小: 81K
代理商: SM7720HSY-FREQ-30
SM7745H CMOS Series
4 Pad 7 x 5mm Leadless Surface Mount Ceramic Clock Oscillator
CMOS with Enable/ Disable or Optional Stand By Mode (3.3 V)
Fundamental or 3rd Overtone Crystal Used
1.500 MHz 69.999 MHz
Standard Specifications
Overall Frequency Stability
SM7745H:
± 50 PPM, SM7744H: ± 25 PPM, SM7720H: ± 20 PPM over Operating Temp. Range
Operating Temperature Range
Supply Voltage (Vcc)
5.0 volts, 3.3 volts and 2.5 volts available, .01 μF bypass cap recommended
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
Standard load is 15 pF (typ. 1 ASIC) maximum, see Test Circuit 2 (consult factory for heavier loads)
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”.
Max. Supply Current
Max. Rise and Fall Time
Frequency Range
(MHz)
2.5V, 3.3V
5.0V
2.5V to 5.0V
1.500 – 10.999
7
10
5.0
11.000 – 23.999
15
5.0
24.000 – 29.999
15
20
5.0
30.000 – 45.999
20
30
5.0
Part Numbering Guide
Model
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
Frequency in MHz
Supply Voltage (Vcc)
Special Specifications (choose all that apply)
SM77 45 H E V - 50.0M - SB - 30 - 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)
Solder Pads
46.000 – 69.999
25
45
4.5
0 to +70
°C is standard, but OTR can be extended to - 40 to +85°C for certain frequencies
Y or blank: 5.0V ± 10%
V: 3.3 volts ± 10%
W: 2.5 volts ± 5%
Part Marking for Vcc
Blank or A, F or Y
A, B, D, F or V
B, C, D, F or W
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
12
Pl tronics, Inc.
Icc (mA) w/ 15pF load
Tr & Tf (nS) w/ 15pF load
Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load
Packaging
Tray or
16mm tape
8mm pitch
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.
Non-Std Output Load Blank = 15 pF max, 30 = 30 pF max
Logic Levels
Logic “1” 90% of Vcc MIN; Logic “0” 10% of Vcc MAX
20 = ± 20 PPM
Pl tronics, Inc.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
.
CMOS
<
80
MHz
Page
1
A
-
16
Jan 2006
Optional Stand By Mode (3.3 volt only)
Portions of the part number that appear after the frequency may not be marked on part (C of C provided)
m
.01 F
bypass
capacitor
MAX
0.200 (5.08)
0.075 (1.9)
0.276 (7.0 ± .15)
0.197
(5.0
±
.15)
0.055
(1.4)
0.024
(0.60)
0.050 (1.27)
0.004 (0.10)
1
4
12
3
4
0.200 (5.08)
0.079 (2.0)
0.087 (2.2)
0.055
(1.4)
0.145
(3.68)
3
2
1
E/D or SB
2
GND
3
OUT
4
Vcc
PIN
SIGNAL
Blank: Standard specs per above
E: Extended OTR (- 40 to +85
°C)
S: 45/55% Symmetry at 50% of Vcc
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