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参数资料
| 型号： | ST2245E-FREQ1-30-SMD |
| 厂商： | PLETRONICS INC |
| 元件分类： | XO, clock |
| 英文描述： | CRYSTAL OSCILLATOR, CLOCK, 4 MHz - 7.999 MHz, TTL OUTPUT |
| 文件页数： | 1/1页 |
| 文件大小： | 200K |
| 代理商： | ST2245E-FREQ1-30-SMD |
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
18
True TTL Series
P1145 (Full Size) or ST2245 (Half Size) 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
± 50 PPM or ± 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)
Logic Levels
2.4 volts MIN;
0.4 volts MAX
Output Load
Can drive up to 10 TTL loads + 15pF (typ. 1 ASIC), 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
P11 45 E - 60.0M - 30 - SMD - 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)
Jun 2004
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
Ringing Noise
Depends on frequency and output load. See EMI application note
Solder pad layout may use any combination
of pins 1, 7, 8 & 14 shown. Recommended
pad size is .12 (3.1) x .07 (1.8) typical.
Pl tronics, Inc.
.807 (20.5) MAX
PLETRONICS
.500
(12.7)
MAX
.247 (6.28)
MAX
.560
(14.23)
MAX
.300
(7.62)
.200 (5.08) TYP
1
14
8 8
8
7
.820 (20.84) MAX
.767 (19.49)
.600 (15.24)
Packaging
Tube or on Pads,
SMD: Bulk
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.
Model
Frequency Stability
45 = ± 50 PPM
44 = ± 25 PPM
Frequency in MHz
Special Specifications (choose all that apply)
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
°
Surface Mount Option
Non-Std Output Load Blank = 15 pF max, 30 = 30 pF max
P11 = Full Size
ST22 = Half Size
Pl tronics, Inc.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
.
.807 (20.5) MAX
.500
(12.7)
MAX
.200
(5.08)
MAX
.600 (15.24)
.300
(7.62)
1
7
14
8
OUT
GND
N.C.
Vcc
.031 (0.8)
.250
(6.35)
MAX
.020
(.51)
P1145
Full Size SMD Version
ST2245
Half Size SMD Version
Solder Pads
Portions of the part number that appear after the frequency may not be marked on part (C of C provided)
.200 (5.08)
.300 (7.62)
8
4
5
.136 x .035
.354
(9.0)
(3.45) x (.89)
Pad (8X)
.492 (12.5) MAX
PLE
.492
(12.5)
MAX
.270 (6.87) MAX
1
4
8
5
1
.492 (12.5) MAX
.492
(12.5)
MAX
.236
(6.0)
MAX
.492 (12.5) MAX
.300 (7.62)
.492
(12.5)
MAX
.300
(7.62)
5
8
4
1
OUT
GND
N.C.
Vcc
.020
(.51)
.250
(6.35)
MAX
.031 (0.8)
True
TTL
Page
18
相关PDF资料 |
PDF描述 |
|---|---|
| ST2245E-FREQ1 | CRYSTAL OSCILLATOR, CLOCK, 4 MHz - 7.999 MHz, TTL OUTPUT |
| ST2245E-FREQ2-30 | CRYSTAL OSCILLATOR, CLOCK, 8 MHz - 15.999 MHz, TTL OUTPUT |
| ST2245E-FREQ3 | CRYSTAL OSCILLATOR, CLOCK, 16 MHz - 21.999 MHz, TTL OUTPUT |
| ST2245E-FREQ4 | CRYSTAL OSCILLATOR, CLOCK, 22 MHz - 60 MHz, TTL OUTPUT |
| ST2245P-FREQ1-50-SMD | CRYSTAL OSCILLATOR, CLOCK, 4 MHz - 7.999 MHz, TTL OUTPUT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST2245EP-4.000MHZ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
| ST2245EP-4.000MHZ-SMD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
| ST2245EP-60.000MHZ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
| ST2245EP-60.000MHZ-SMD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
| ST2245P-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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