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参数资料
| 型号： | ST2244-FREQ-30-OUT3 |
| 厂商： | PLETRONICS INC |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 4 MHz - 60 MHz, TTL OUTPUT |
| 封装： | HALF SIZE, METAL, DIP-4 |
| 文件页数： | 1/1页 |
| 文件大小： | 43K |
| 代理商： | ST2244-FREQ-30-OUT3 |
ST2245 Series
Half Size (8 Pin DIP) Metal Clock Oscillator
True TTL Output without Enable/Disable
Lower EMI Due to Lower Ringing Noise (Overshoot/Undershoot)
Available in Thru-Hole or Surface Mount Configuration
4.000 MHz – 60.000 MHz
Standard Specifications
Overall Frequency Stability
ST2245: ± 50 PPM, ST2244: ± 25 PPM over Operating Temperature Range
Operating Temperature Range
0 to +70°C is standard, but can be extended to- 40 to +85°C for certain frequencies
Supply Voltage (Vcc)
5.0 volts ± 10%
Symmetry (Duty Cycle)
40/60 to 60/40% is standard, but 45/55% at Vcc = 1.4 volts is also available (see Waveform 1)
Output Load
Can drive up to 10 TTL loads + 15pF, see Test Circuit 4 (consult factory for heavier loads)
Supply Current
Icc (mA)
Rise and Fall Time
Tr & Tf (nS)
Frequency Range
(MHz)
Typical
Maximum
Typical
Maximum
4.000 – 7.999
23.0
28.0
4.0
5.0
8.000 – 15.999
24.0
28.0
3.0
4.0
16.000 – 21.999
24.0
28.0
2.5
3.5
Part Numbering Guide
Model
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
Frequency in MHz
Special Specifications (choose all that apply)
ST22 45 E -- 60.0M - 30 - SMD
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)
Blank: Std Specs (0 to +70 C, 40/60% Symmetry)
E: Extended Operating Temperature Range (- 40 to +85 C)
P: 45/55% Symmetry at Vcc = 1.4 volts
°
19013 36th Ave. West Suite H Lynnwood, WA 98036, USA
22.000 – 60.000
27.0
32.0
2.0
3.0
Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load
Surface Mount Option
Surface Mount
Solder Pads
Ringing Noise
Depends on frequency and output load. See EMI application note
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
22
Jan 2002
Pl tronics, Inc.
Packaging
Tube or on Pads,
SMD: Bulk
Logic Levels
2.4 volts MIN;
0.4 volts MAX
Logic “1”
Logic “0”
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
.200 (5.08)
.300 (7.62)
8
4
5
.136 x .035
.354
(9.0)
(3.45) x (.89)
Pad (8X)
.236 (6.0)
MAX
.020
(.51)
.250 (6.35) MAX
.492 (12.5) MAX
.300 (7.62)
PLE
.492
(12.5)
MAX
.300
(7.62)
1
4
8
5
N.C.
Vcc
OUT
GND
.031 (0.8)
.270 (6.87)
MAX
1
4
8
5
1
.492 (12.5) MAX
.492
(12.5)
MAX
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相关代理商/技术参数 |
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| ST2244P-4.000MHZ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
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| ST2244P-60.000MHZ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
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| ST2245-4.000MHZ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
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