PE76D / PE78D Series 2.5 V
PECL Clock Oscillators
January 2008
Do Not Use for New Designs - use PE55 or PE77
• Pletronics’ PE76D/PE78D Series is a quartz
crystal controlled precision square wave generator
with a PECL output.
• FR4 base with a mechanical metal cover.
• Solder pad compatible with many 9x14mm plastic
J lead packages.
• Has internal bypass capacitor on the Vcc lead
• Tape and Reel or cut tape packaging is available.
• 40 to 250 MHz
• 9.04mm x 8.91mm (S package)
• Enable/Disable PE76D on pad 1
PE78D on pad 2)
• Disable function includes low standby power
mode
• 3
rd
Overtone Crystals used
• Low Jitter
• 5x7 mm LCC ceramic oscillator PE77 series
Pletronics Inc. certifies this device is in accordance with the
RoHS 5/6 (2002/95/EC) and WEEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadmium, Hexavalent Chromium, Lead, Mercury, PBB’s, PBDE’s
Weight of the Device: 0.4 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e4
Absolute Maximum Ratings:
Parameter
V
CC
Supply Voltage
Vi
Vo
Input Voltage
Output Voltage
Unit
-0.5V to +7.0V
-0.5V to V
CC
+ 0.5V
-0.5V to V
CC
+ 0.5V
Thermal Characteristics
The maximum die or junction temperature is 155
o
C
The thermal resistance junction to board is 60 to 100
o
C/Watt depending on the solder pads, ground plane
and construction of the PCB.
Product information is current as of publication date. The product conforms
Copyright © 2006, 2007, 2008, Pletronics
Inc.
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
PE76D / PE78D Series 2.5 V
PECL Clock Oscillators
January 2008
Part Number:
PE7x
45
D
E
W
-125.0M
-XX
Packaging code or blank
T250 = 250 per Tape and Reel
T500 = 500 per Tape and Reel
T1K = 1000 per Tape and Reel
Frequency in MHz
Supply Voltage V
CC
W
= 2.5V _ 10%
+
Optional Enhanced OTR
Blank
= Temp. range -10 to +70
o
C
E
= Temp. range -40 to +85
o
C
Series Model
Frequency Stability
45
= + 50 ppm
_
44
= + 25 ppm
_
20
= + 20 ppm
_
Series Model
(where x is a 6 or 8)
Marking Legend:
The marking is the PE77xxDW device
PLE = Pletronics
The Tape and Reel and box marking shows the PE7x PN.
FF.FFF
M = Frequency in MHz
YYWW or YWW or
YMD
= Date of Manufacture (year and week, or year-month-day)
All other marking is internal factory codes
Specifications such as frequency stability, supply voltage and operating temperature range, etc. are
not identified from the marking. External packaging labels and packing list will correctly identify the
ordered Pletronics part number.
Codes for Date Code YMD
Code
Year
Code
Month
Code
Day
Code
Day
Code
Day
1
1
D
13
T
25
6
2006
A
JAN
2
2
E
14
U
26
7
2007
B
FEB
3
3
F
15
V
27
8
2008
C
MAR
4
4
G
16
W
28
9
2009
D
APR
E
MAY
5
5
H
17
X
29
0
2010
F
JUN
6
6
J
18
Y
30
1
2011
G
JUL
7
7
K
19
Z
31
H
AUG
8
8
L
20
2
2012
J
SEP
9
9
M
21
K
OCT
A
10
N
22
L
NOV
B
11
P
23
M
DEC
C
12
R
24
Part Marking:
PLE PE77
FF.FFF
M
C
YMDXX
www.pletronics.com
425-776-1880
2
PE76D / PE78D Series 2.5 V
PECL Clock Oscillators
January 2008
Electrical Specification for 2.50V _5% over the specified temperature range
+
Item
Frequency Range
Frequency Accuracy “45"
“44"
“20"
Output Waveform
Output High Level (0
o
C to 85
o
C)
1.475
0.975
Output High Level (-40
o
C)
Min
40
-50
-25
-20
Max
250
+50
+25
+20
PECL /ECL
1.760
1.260
volts
volts
volts
volts
volts
volts
volts
volts
volts
volts
volts
volts
%
pS RMS
pS RMS
nS
mA
Kohm
volts
volts
uA
uA
nS
nS
mS
o
o
o
Unit
MHz
ppm
Condition
For all supply voltages, load changes, aging for 1
year, shock, vibration and temperatures
Referenced to Ground, V
CC
= 2.5 V
Referenced to termination voltage, V
CC
= 2.5 V
Referenced to Vcc, V
CC
= 2.5 V
Referenced to Ground, V
CC
= 2.5 V
Referenced to termination voltage, V
CC
= 2.5 V
Referenced to Vcc, V
CC
= 2.5 V
Referenced to Ground, V
CC
= 2.5 V
Referenced to termination voltage, V
CC
= 2.5 V
Referenced to Vcc, V
CC
= 2.5 V
Referenced to Ground, V
CC
= 2.5 V
Referenced to termination voltage, V
CC
= 2.5 V
Referenced to Vcc, V
CC
= 2.5 V
at 50% point of V
CC
(See load circuit)
12 KHz to 20 MHz from the output frequency
10 Hz to 1 MHz from the output frequency
Vth is 20% and 80% of waveform
-1.025 -0.740
1.415
0.915
-1.085
Output Low Level (0
o
C to 85
o
C)
0.690
0.190
Output Low Level (-40
o
C)
1.620
1.12
-0.88
1.095
0.595
-1.810 -1.405
0.670
0.170
1.195
0.695
-1.830 -1.305
Output Symmetry
Jitter
45
-
-
Output T
RISE
and T
FALL
V
CC
Supply Current (I
CC
)
Enable/Disable Internal Pull-up
V disable
V enable
Output leakage
V
OUT
= V
CC
V
OUT
= 0V
Enable time
Disable time
Start up time
Operating Temperature Range
-
-
50
-
1.7
-10
-10
-
-
-
-10
- 40
Storage Temperature Range
Standby Current I
CC
-55
-
55
0.13
2.8
0.7
90
-
0.6
-
+10
+10
10
10
10
+70
+85
+125
3
to V
CC
Referenced to pad 3
Referenced to pad 3
Pad 1 low, device disabled
Time for output to reach a logic state
Time for output to reach a high Z state
Time for output to reach specified frequency
Standard Temperature Range
Extended Temperature Range
“E” Option
C
C
C
uA
Pad 1 low, device disabled
Specifications with Pad 1 E/D open circuit
www.pletronics.com
425-776-1880
3
PE76D / PE78D Series 2.5 V
PECL Clock Oscillators
January 2008
Typical Phase-Noise Response
0
-20
-40
dBc/Hz
-60
-80
-100
-120
-140
-160
10
1,000
100,000
10,000,000
Frequency (Hz)
Load Circuit
Test Waveform
Symmetry
Vhigh
80%
50%
20%
Vlow
Trise
Tfall
Out
Out*
Showing Out Measurement only
www.pletronics.com
425-776-1880
4
PE76D / PE78D Series 2.5 V
PECL Clock Oscillators
January 2008
Reliability
: Environmental Compliance
Parameter
Mechanical Shock
Vibration
Solderability
Thermal Shock
Condition
MIL-STD-883 Method 2002, Condition B
MIL-STD-883 Method 2007, Condition A
MIL-STD-883 Method 2003
MIL-STD-883 Method 1011, Condition A
ESD Rating
Model
Human Body Model
Charged Device Model
Minimum Voltage
1500
1000
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Package Labeling
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Courier New
Bar code is 39-Full ASCII
(PE76 example shown)
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Arial
www.pletronics.com
425-776-1880
5
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