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參數(shù)資料
| 型號(hào)： | SM8844CV-FREQ-30-OUT21 |
| 廠商： | PLETRONICS INC |
| 元件分類： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 1 MHz - 80 MHz, CMOS OUTPUT |
| 文件頁數(shù)： | 1/1頁 |
| 文件大小： | 39K |
| 代理商： | SM8844CV-FREQ-30-OUT21 |
SM8845C Series
4 Pad 9.1 x 7.1mm Leadless Surface Mount Ceramic Clock Oscillator
CMOS with Enable/ Disable
Recommended for Non-Std Specs and Frequencies
1.000 MHz – 80.000 MHz
Standard Specifications
Overall Frequency Stability
SM8845C: ± 50 PPM, SM8844C:
± 25 PPM, SM8820C: ± 20 PPM over Operating Temp. Range
Operating Temperature Range
Supply Voltage (Vcc)
5.0 volts and 3.3 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
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”.
Supply Current
Rise and Fall Time
Frequency Range
(MHz)
Typical
Maximum
Typical
Maximum
1.000 – 25.000
5.0
10.0
4.0
5.0
25.001 – 50.000
10.0
20.0
3.0
4.0
50.001 – 80.000
20.0
25.0
3.5
4.5
Part Numbering Guide
Model
Frequency Stability
SM88 45 C Y -- 50.0M - 30
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
Jan 2002
0 to +70°C is standard, but can be extended to - 40 to +85°C for certain frequencies
19013 36th Ave. West Suite H Lynnwood, WA 98036, USA
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
12
Pl tronics, Inc.
0.01 F
m
.358
(9.1
±
.15)
1
2
3
4
.075 (1.9) MAX
.280 (7.1 ± .1)
Vcc
E/D
GND
OUT
1
2
3
4
.08 (2.0)
.07 (1.8)
.200
(5.08)
bypass
PLE
.157 (4.0)
Packaging
Tray or
24mm tape
12mm pitch
Standard load is 15pF maximum, see Test Circuit 2 (consult factory for heavier loads)
Icc (mA) w/ 15pF load
Tr & Tf (nS) w/ 15pF load
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.
Frequency in MHz
Special Specifications (choose all that apply)
°
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 ±10%
Non-Std Output Load
Blank = 15 pF max, 30 = 30 pF max, 50 = 50 pF max
45 = ± 50 PPM
44 = ± 25 PPM
20 = ± 20 PPM
.130
(3.3)
capacitor
Logic Levels
Logic “1” 90% of Vcc MIN; Logic “0” 10% of Vcc MAX
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