LV7820DW-125.0M-T250 数据手册
LV76D / LV78D Series 2.5 V
LVDS Clock Oscillators
January 2008
Do Not Use for New Designs - use LV55 or LV77
• Pletronics’ LV76D / LV78D Series is a quartz crystal controlled precision square wave generator with an LVDS output. • FR4 base with a mechanical metal cover. • Solder pad compatible with many 9x14mm plastic J lead packages. • Tape and Reel or cut tape packaging is available. • 80 to 250 MHz • 9.04mm x 8.23mm (S package) • Enable/Disable LV76D on pad 1 LV78D on pad 2 • Disable function includes low standby power mode • 3rd Overtone Crystals used • Low Jitter • 5x7 mm LV77xxDW is used
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 VCC Supply Voltage Vi Vo Input Voltage Output Voltage Unit -0.5V to +5.0V -0.5V to VCC + 0.5V -0.5V to VCC + 0.5V
Thermal Characteristics
The maximum die or junction temperature is 155oC The thermal resistance junction to board is 60 to 100oC/Watt depending on the solder pads, ground plane and construction of the PCB.
Product information is current as of publication date. The product conforms to specifications per the terms of the Pletronics standard warranty. Production processsing does not necessarily include testing of all parameters.
Copyright © 2006, 2007, 2008 Pletronics Inc.
LV76D / LV78D Series 2.5 V
LVDS Clock Oscillators
January 2008
Part Number:
LV7x 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 VCC W = 2.5V _ 10% + Optional Enhanced OTR Blank = Temp. range -10 to +70oC E = Temp. range -40 to +85oC Series Model Frequency Stability 45 = + 50 ppm _ 44 = + 25 ppm _ 20 = + 20 ppm _ Series Model LV76 or LV78 Marking Legend: PLE = Pletronics The marking is on the cover of the LV77 device FF.FFF M = Frequency in MHz The marking is that of the LV77 device 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 LV77 FF.FFF M C YMDXX
www.pletronics.com
425-776-1880
2
LV76D / LV78D Series 2.5 V
LVDS Clock Oscillators
January 2008
Electrical Specification for 2.50V _10% over the specified temperature range +
Item Frequency Range Frequency Accuracy “45" “44" “20" Output Waveform Output High Level Output Low Level Differential Output (VOD) Output Offset Voltage (VOS) Differential Output Error (dVOS) Output Symmetry Output TRISE and TFALL Jitter -0.90 247 1.125 -45 300 Vcc Supply Current Enable/Disable Internal Pull-up V disable V enable Output leakage VOUT = VCC VOUT = 0V Enable Disable time Start up time Operating Temperature Range 50 2.0 -10 -10 -10 -40 Storage Temperature Range Standby Current ICC -55 Min 80 -50 -25 -20 Max 250 +50 +25 +20 LVDS 1.60 -454 1.375 50 55 700 0.15 2.8 63 0.8 +10 +10 10 10 5 +70 +85 +125 3 mA Kohm Volts Volts uA uA nS nS mS
o
Unit MHz ppm
Condition
For all supply voltages, load changes, aging for 1 year, shock, vibration and temperatures
Volts Volts mVolts Volts mVolts % pS pS RMS
See load circuit See load circuit See load circuit See load circuit See load circuit
R1 = 50 ohms R1 = 50 ohms R1 = 50 ohms R1 = 50 ohms R1 = 50 ohms
Referenced to 50% of amplitude or crossing point Vth is 20% and 80% of waveform Measured from 12KHz to 20MHz from Fnominal Measured from 10Hz to 1MHz from Fnominal Includes current of properly terminated device To Vcc (equivalent resistance) Referenced to Ground Referenced to Ground Pad 1 low, device disabled
Time for output to reach a logic state Time for output to reach a high Z state Measured from the time Vcc = 3.0V Standard Temperature Range Extended Temperature Range “E” Option
C C C
o
o
uA
Pad 1 low, device disabled
Specifications with E/D open circuit
www.pletronics.com
425-776-1880
3
LV76D / LV78D Series 2.5 V
LVDS 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
LV76D / LV78D Series 2.5 V
LVDS 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 (the label will show LV76 or LV78) Label is 1" x 2.6" (25.4mm x 66.7mm) Font is Arial
www.pletronics.com
425-776-1880
5
LV76D / LV78D Series 2.5 V
LVDS Clock Oscillators
January 2008
Mechanical:
Inches B 0.356 +0.005 _ 0.126 +0.005 _ 0.324 +0.005 _ 0.050 0.040 0.059 0.020 0.040 0.100 0.062
mm 9.04 +0.13 _ 3.21 +0.13 _ 8.23 +0.13 _ 1.27 1.02 1.50 0.51 1.02 2.54 1.57
1
FR4 PCB Base: Solder masked Label: laser marked lettering All via holes tented on bottom Copper Clad 670 µinch (17 µm) Nickel plated 118 µinch (3 µm) Gold plated 0.8 µinch (0.02 µm) Typical thicknesses Pin 3 Ground plane is typical Not to scale
6 5 4
2
C
3
D F1 G1 H1 I1 J1 K1 L1
Pad 76 1 2 78 2 1
Function
Note
No connect Output Enable/Disable Ground (GND) Output Output* Supply Voltage (VCC)
There is no internal connection to this pad When this pad is not connected the oscillator shall operate. When this pad is
LV7820DW-125.0M-T250 价格&库存
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