PE1144ME-FREQ-OUT7 [PLETRONICS]
PECL Output Clock Oscillator, 10MHz Min, 170MHz Max;
| 型号： | PE1144ME-FREQ-OUT7 |
| 厂家： | 
PLETRONICS, INC. |
| 描述： | PECL Output Clock Oscillator, 10MHz Min, 170MHz Max |
| 文件： | 总1页 (文件大小：38K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Pl tronics, Inc.
.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
PE1145M PECL Series
4 Lead Thru-Hole Metal Clock Oscillator
–
10.00 MHz 170.00 MHz
Differential PECL Output without Enable/ Disable Function
See PE1145T for higher frequencies
Standard Specifications
Overall Frequency Stability
± 50 PPM, ± 25 PPM, ± 20 PPM over Operating Temperature Range
-
°
Operating Temperature Range 0 to +80 C is standard, but can be extended to 40 to +85°C for certain frequencies
Supply Voltage (Vcc)
Supply Current (Icc)
Jitter
3.3 volts ± 10% standard, but 5.0 volts or 2.5 volts also available
³
60 to 70 mA typical, 90 mA maximum for 70 MHz. For < 70 MHz, consult factory
1 pS RMS maximum, from 12 kHz to 20 MHz from carrier for ³ 70 MHz. For < 70 MHz, consult factory
Output Load
Output must be terminated into 50 ohms to (Vcc - 2.0 V). See Test Circuit 5 and Note 1.
Symmetry
Tr & Tf
Logic “1”
45/55% to 55/45% at 50% of Vcc level standard, tighter symmetry available
Output Waveform
PECL with Differential Output
(see Waveform 2)
³
1.0 nS max (20 to 80%) for 70 MHz. For < 70 MHz, consult factory
Vcc - 1.025 volts minimum
Vcc - 1.620 volts maximum
Logic “0”
Note 1:
In the typical PECL 100K logic output Voh is 2.35 volts and Vol is 1.60 volts at 3.3 Vcc. The center voltage of the PECL is therefore1.975 volts.
If a 50 ohm resistor is placed between the output and Vcc – 2 volts (1.3 volts), the current through the resistor is (1.975 – 1.3) / 50 = 13.5 mA.
±
The same load can be simulated by a resistor of 147 1% ohms to ground (1.975 / 0.0135 = 146.29 ohms). If additional load current is placed
on the output, its load current must be subtracted from the 13.5 mA to calculate a new load resistor. Using similar calculations, use 274 ± 1%
ohms to ground for 5.0V operation.
Part Numbering Guide
Packaging
Tube
PE11 45 M Y -- 70.0M
Model
Frequency in MHz
Special Specifications (choose all that apply)
E: Extended Operating Temperature Range (- 40 to +85 C)
F: 47.5 /52.5% Symmetry at 50% of Vcc
V: Supply Voltage of 3.3 volts ± 10%
W: Supply Voltage of 2.5 volts ± 5%
Y: Supply Voltage of 5.0 volts ± 10%
Frequency Stability
°
45 = ± 50 PPM
44 = ± 25 PPM
20 = ± 20 PPM
Consult factory for available frequencies and specs. Not all options available for all frequencies. A special part number may be assigned.
Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load
Mechanical: inches (mm)
not to scale
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.
.200 (5.08) MAX
.600 (15.24)
.807 (20.5) MAX
.031 (0.8)
8 Q Out
14
1
Vcc
PLETRONICS
.020
(.51)
QN Out
7 GND
.250 (6.35) MAX
May 2002
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
Pl tronics, Inc.
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