Pl tronics, Inc.
.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
PE2245B PECL Series
10 Pad Leadless Surface Mount Clock Oscillator, see PE1145B for 6 Pad
Differential PECL Output with or without Enable/ Disable Function
–
10.00 MHz 170.00 MHz
See PE1145T for higher frequencies
All Connor-Winfield EE94-5XX Pinouts Available
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 must be terminated into 50 ohms to (Vcc - 2.0 V). See Test Circuit 5 and Note 1.
Output enabled when E/D Pin is open or at CMOS Logic “1”;
Output Load
Enable/Disable Option (E/D)
(as applicable)
Output disabled when E/D Pin is at CMOS Logic “0”.
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
Tray or
PE22 45 B Y -- 70.0M
Model
24mm tape,
16mm pitch
(Pinout Option)
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%
PE20 PE23
PE21 PE24
PE22
°
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.
Q
Vcc
*
10
9
8
7
6
5
6
7
8
9
10
N.C.
PLE
.05
(1.3)
N.C.
Solder Pads
N.C.
5
N.C. N.C.
2
1
4
3
1
2
3
4
GND
*
.560 (14.23) MAX
.217 (5.5)
MAX
.400 (10.16)
C-W
Option '0'
'1'
'2'
'3'
'4'
Pin PE20 PE21 PE22 PE23 PE24
2
*
PE2245B Series Pinout Options
Connor-Winfield EE94-5XX Equivalents
N.C. N.C. E/D QN E/D
May 2002
6
N.C. QN N.C. N.C. QN
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
Pl tronics, Inc.
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