19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
PEV PECL VCXO Series
6 Pad Leadless Surface Mount PECL Voltage Controlled Xtal Oscillator
Differential PECL Output with Enable/Disable
Standard Specifications
Overall Frequency Stability
Operating Temperature Range
Supply Voltage (Vcc)
Supply Current (Icc)
Jitter
Output Load
Enable/Disable Option (E/D)
Control Voltage Range (CVR)
Pullablity over CVR
Linearity
Output Waveform
PECL with Differential Output
± 50, 25, 20 PPM over Operating Temperature Range
0 to +70°C is standard, but can be extended to
-
40 to +85°C for certain frequencies
3.3 volts ± 10% standard, but 5.0 volts or 2.5 volts also available
50 mA typical, 75 mA maximum
6 pS RMS maximum,
from 12 kHz to 20 MHz from carrier
Output must be terminated into 50 ohms to (Vcc - 2.0 V). See Test Circuit 10 and Note 1.
Output enabled when Pin #2 is open or at CMOS Logic “1”;
Output disabled when Pin #2 is at CMOS Logic “0”.
0.5 to 4.5 volts: 5.0 V Supply; 0.0 to 3.3 volts: 3.3 V Supply; 0.0 to 2.5 volts: 2.5 V Supply
± 50 PPM. Consult factory for > 50 PPM.
± 20% (Consult factory for ± 10%)
Symmetry
45/55% to 55/45% at 50% of Vcc level (see Waveform 2)
Tr & Tf
1.0 nS max (20 to 80%)
Logic “1”
Vcc - 1.025 volts minimum
Logic “0”
Vcc - 1.620 volts maximum
100.00 MHz
–
650.00 MHz
Consult factory for
higher
frequencies
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
W
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
Portions of the part number that appear after the frequency may not be marked on part (C of C provided)
Packaging
Tube or
24mm tape
16mm pitch
3 PEV 20 B V - 100.0M - XXX
(Internal Code or blank)
Supply Voltage
Blank= 5.0 volts ±10%
3= 3.3 volts ±10%
2= 2.5 volts ±5%
Model
Frequency Stability
20 = ± 20 PPM
25 = ± 25 PPM
50 = ± 50 PPM
Frequency in MHz
Frequency Deviation (Pullability) over CVR
V: ± 50 PPM
Operating Temperature Range
B: 0 to +70
°
C
F: - 40 to +85
°
C
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)
.400 (10.16) MAX
not to scale
Q QN Vcc
4 5 6
Solder Pads
6
.12
(3.0) .23 (5.8)
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.
5
4
.05
(1.3)
PLE
3
.560 (14.23) MAX
.195 (4.95)
MAX
GND
2
E/D
1
Vcon
1
2
3
Consult factory for optional 'J' leads
.200 (5.08)
For Best Performance,
Do NOT allow any traces other
than ground under oscillators
(Even in buried layers). See
Page 4A for layout guidelines.
Jan 2004
Pl tronics, Inc.
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
5
PECL, ECL, LVDS
Page 1 - 7
Pl tronics, Inc.
.
PLETRONICS [ PLETRONICS, INC. ]
