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MC100LVE222FAR2G Fiches technique(PDF) 1 Page - ON Semiconductor |
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MC100LVE222FAR2G Fiches technique(HTML) 1 Page - ON Semiconductor |
1 / 8 page © Semiconductor Components Industries, LLC, 2005 October, 2005− Rev. 11 1 Publication Order Number: MC100LVE222/D MC100LVE222 3.3 V/5.0 V ECL 1:15 Differential ÷1/÷2 Clock Driver The MC100LVE222 is a low skew 1:15 differential ÷1/÷2 ECL fanout buffer designed with clock distribution in mind. The LVECL/LVPECL input signal pairs can be differential or used single−ended (with VBB output reference bypassed and connected to the unused input of a pair). Either of two fully differential clock inputs may be selected. Each of the four output banks of 2, 3, 4, and 6 differential pairs may be indwependently configured to fanout 1X or 1/2X of the input frequency. The LVE222 specifically guarantees low output to output skew. Optimal design, layout, and processing minimize skew within a device and from lot to lot. The fsel pins and CLK_Sel pin are asynchronous control inputs. Any changes may cause indeterminate output states requiring an MR pulse to resynchronize any 1/2X outputs. The device tpd is affected by the quantity of output pairs terminated with a minimum occurring with only one output pair and increasing about 10−20 ps for all output pairs. Relative skew distribution is not affected as more pairs are terminated, but the increased tpd does shift the entire distribution. Unused output pairs should be left unterminated (open) to reduce power and switching noise. The MC100LVE222, as with most ECL devices, can be operated from a positive VCC/VCCO supply in PECL mode. This allows the LVE222 to be used for high performance clock distribution in +3.3 V systems. Operation with >3.8 |(VCC or VCCO−VEE| span will require special thermal handling considerations. Designers can take advantage of the LVE222’s performance to distribute low skew clocks across the backplane or the board. In a PECL environment series or Thevenin line, terminations are typically used as they require no additional power supplies. All power supply pins must be connected. For more information on using PECL, designers should refer to Application Note AN1406/D. For a SPICE model, refer to Application Note AN1560/D. • 200 ps Part−to−Part Skew • 50 ps Output−to−Output Skew • Selectable 1x or 1/2x Frequency Outputs • ESD Protection: >2 kV HBM, >200 V MM • The 100 Series Contains Temperature Compensation • PECL Mode Operating Range: VCC/VCCO = 3.0 V to 5.25 V with VEE = 0 V • NECL Mode Operating Range: VCC/VCCO = 0 V with VEE = −3.0 V to −5.25 V • Internal Input Pulldown Resistors • Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test • Moisture Sensitivity Level 2 For Additional Information, refer to Application Note AND8003/D • Flammability Rating: UL 94 V−0 @ 0.125 in, Oxygen Index: 28 to 34 • Transistor Count = 684 devices • Pb−Free Packages are Available* *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. LQFP FA SUFFIX CASE 848D MARKING DIAGRAM* *For additional information, see Application Note AND8002/D 1 52 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package MC100LVE AWLYYWWG 222 http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. ORDERING INFORMATION |
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