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參數資料
| 型號： | SM7645HY-FREQ3-SB |
| 廠商： | PLETRONICS INC |
| 元件分類： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 24 MHz - 29.999 MHz, CMOS OUTPUT |
| 文件頁數： | 1/1頁 |
| 文件大小： | 42K |
| 代理商： | SM7645HY-FREQ3-SB |
SM7645H Series
4 Pad Leadless Surface Mount Clock Oscillator
CMOS with Enable/ Disable or Optional Stand By Mode
Fundamental or 3rd Overtone Crystal Used
1.500 MHz – 69.999 MHz
Standard Specifications
Overall Frequency Stability
SM7645H:
± 50 PPM, SM7644H: ± 25 PPM, SM7620H: ± 20 PPM over Operating Temp. Range
Operating Temperature Range
Supply Voltage (Vcc)
5.0 volts, 3.3 volts, 2.5 volts and 1.8 volts available, .01 F 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
Special Specifications (choose all that apply)
SM76 45 H Y -- 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 can be extended to - 40 to +85°C for certain frequencies
Y: Std Specs (5.0V ± 10%, 0 to +70 C, 40/60% Symmetry)
E: Extended Operating Temperature Range (- 40 to +85 C)
S: 45/55% Symmetry at 50% of Vcc
V: Supply Voltage of 3.3 volts
W: Supply Voltage of 2.5 volts ± 5%
X: Supply Voltage of 1.8 volts ± 5% (consult factory)
± 10%
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
TBD
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,
50 = 50 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
12
-
19
Optional Stand By Mode
Portions of the part number that appear after the frequency may not be marked on part (C of C provided)
Max. Icc (mA) Max. Tr & Tf (nS)
Frequency
Range (MHz)
1.8V
1.500 – 39.999
10
5.0
40.000 – 69.999
25
3.0
w/ 15pF load
Mar 2004
0.055
(1.4)
0.200 (5.08)
1
2
3
4
7XYWKZ
FREQ M
PLE SPEC
0.228
(5.8)
0.118
(3.0)
0.040 (1.02)
0.238
(6.05)
0.105 (2.66)
MAX
0.200 (5.08)
0.040 (1.02)
1
2
1
3
4
3
4
0.356
(9.04)
TOP VIEW
0.324 (8.23)
0.059
(1.50)
0 .145
(3.68)
1
E/D
2
GND
3
OUT
4
Vcc
PIN
SIGNAL
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