MC100LVEL37 3.3V ECL 1:4 ÷1/÷2 Clock Fanout Buffer Description The MC100LVEL37 is a fully differential 1:4 fanout buffer. The device offers two outputs at ÷1 of the input frequency, and two outputs at ÷2 of the input frequency. The Low Output−Output Skew of the device makes it ideal for distributing 1x and 1/2x frequency synchronous signals. The differential inputs have special circuitry which ensures device stability under open input conditions. When both differential inputs are left open the CLKn input will pull down to VEE, The CLKn input will bias around VCC/2 and the Qn output will go LOW. http://onsemi.com SO−20 WB DW SUFFIX CASE 751D Features • 700 ps Typical Propagation Delays • 50 ps Maximum Output−Output Skews • ESD Protection: >2 kV Human Body Model, • • • • • • • • • • >200 V Machine Model The 100 Series Contains Temperature Compensation PECL Mode Operating Range: VCC = 3.0 V to 3.8 V with VEE = 0 V NECL Mode Operating Range: VCC = 0 V with VEE = −3.0 V to −3.8 V Internal Input Pulldown Resistors Qn Output will Default LOW with Inputs Open or at VEE Meets or Exceeds JEDEC Spec EIA/JESD78 IC Latchup Test Moisture Sensitivity Pb = Level 1 Pb−Free = Level 3 For Additional Information, see Application Note AND8003/D Flammability Rating: UL 94 V−0 @ 0.125 in, Oxygen Index 28 to 34 Transistor Count = 256 devices Pb−Free Packages are Available* MARKING DIAGRAM* 20 100LVEL37 AWLYYWWG 1 A WL YY WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package *For additional marking information, refer to Application Note AND8002/D. ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 5 of this data sheet. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. © Semiconductor Components Industries, LLC, 2008 November, 2008 − Rev. 6 1 Publication Order Number: MC100LVEL37/D MC100LVEL37 VEE Q0 Q0 Q1 Q1 Q2 Q2 Q3 Q3 VCC 20 19 18 17 16 15 14 13 12 11 Table 1. TRUTH TABLE Clk_Sel MR Q0, 1 Q2, 3 L H X L L H CLK0/÷1 CLK1/÷1 L CLK0/÷2 CLK1/÷2 L ÷1 ÷2 X = Don’t Care 1 2 3 VCC VCC 4 5 6 7 CLK0 CLK0 Clk_Sel CLK1 CLK1 8 9 10 MR VEE VEE Table 2. PIN DESCRIPTION Figure 1. 20−Lead Pinout (Top View) Warning: All VCC and VEE pins must be externally connected to Power Supply to guarantee proper operation. PIN FUNCTION Q0, Q0; Q1, Q1 Q2, Q2; Q3, Q3 CLKn, CLKn Clk_Sel MR VCC VEE ECL Differential Clock ÷1 Outputs ECL Differential Clock ÷2 Outputs ECL Differential Clock Inputs ECL Input Clock Selection ECL Asynchronous Master Reset Positive Supply Negative Supply Table 3. MAXIMUM RATINGS Symbol Parameter Condition 1 Condition 2 Rating Unit VCC PECL Mode Power Supply VEE = 0 V 8 to 0 V VEE NECL Mode Power Supply VCC = 0 V −8 to 0 V VI PECL Mode Input Voltage NECL Mode Input Voltage VEE = 0 V VCC = 0 V 6 to 0 −6 to 0 V V Iout Output Current Continuous Surge 50 100 mA mA TA Operating Temperature Range −40 to +85 °C Tstg Storage Temperature Range −65 to +150 °C qJA Thermal Resistance (Junction to Ambient) 0 lfpm 500 lfpm 20 SOIC 20 SOIC 90 60 °C/W °C/W qJC Thermal Resistance (Junction to Case) Standard Board 20 SOIC 30 to 35 °C/W Tsol Wave Solder <2 to 3 sec @ 248°C <2 to 3 sec @ 260°C 265 265 °C Pb Pb−Free VI VCC VI VEE Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. http://onsemi.com 2 MC100LVEL37 Table 4. LVPECL DC CHARACTERISTICS VCC = 3.3 V; VEE = 0.0 V (Note 1) −40°C Symbol Characteristic Min 25°C Typ Max 38 50 Min 85°C Typ Max 38 55 Min Typ Max Unit 38 55 mA IEE Power Supply Current VOH Output HIGH Voltage (Note 2) 2215 2295 2420 2275 2345 2420 2275 2345 2420 mV VOL Output LOW Voltage (Note 2) 1470 1605 1745 1490 1595 1680 1490 1595 1680 mV VIH Input HIGH Voltage (Single−Ended) 2135 2420 2135 2420 2135 2420 mV VIL Input LOW Voltage (Single−Ended) 1490 1825 1490 1825 1490 1825 mV VIHCMR Input HIGH Voltage Common Mode Range (Differential) (Note 6) VPP < 500 mV VPP y 500 mV 1.3 1.5 2.9 2.9 1.2 1.4 2.9 2.9 1.2 1.4 2.9 2.9 V V 150 mA IIH Input HIGH Current IIL Input LOW Current 150 CLKn CLKn 0.5 −300 150 0.5 −300 0.5 −300 mA mA NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied individually under normal operating conditions and not valid simultaneously. 1. Input and output parameters vary 1:1 with VCC. VEE can vary ±0.3 V. 2. Outputs are terminated through a 50 W resistor to VCC − 2.0 V. 3. VIHCMR min varies 1:1 with VEE, max varies 1:1 with VCC. The VIHCMR range is referenced to the most positive side of the differential input signal. Normal operation is obtained if the HIGH level falls within the specified range and the peak-to-peak voltage lies between VPPmin and 1 V. Table 5. LVNECL DC CHARACTERISTICS VCC = 0.0 V; VEE = −3.3 V (Note 4) −40°C Symbol Characteristic Min 25°C Typ Max 38 50 Min 85°C Typ Max 38 55 Min Typ Max Unit 38 55 mA IEE Power Supply Current VOH Output HIGH Voltage (Note 5) −1085 −1005 −880 −1025 −955 −880 −1025 −955 −880 mV VOL Output LOW Voltage (Note 5) −1830 −1695 −1555 −1810 −1705 −1620 −1810 −1705 −1620 mV VIH Input HIGH Voltage (Single−Ended) −1165 −880 −1165 −880 −1165 −880 mV VIL Input LOW Voltage (Single−Ended) −1810 −1475 −1810 −1475 −1810 −1475 mV VIHCMR Input HIGH Voltage Common Mode Range (Differential) (Note 6) VPP < 500 mV VPP y 500 mV −2.0 −1.8 −0.4 −0.4 −2.1 −1.9 −0.4 −0.4 −2.1 −1.9 −0.4 −0.4 V V 150 mA IIH Input HIGH Current IIL Input LOW Current 150 CLKn CLKn 0.5 −300 150 0.5 −300 0.5 −300 mA mA NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied individually under normal operating conditions and not valid simultaneously. 4. Input and output parameters vary 1:1 with VCC. VEE can vary ±0.3 V. 5. Outputs are terminated through a 50 W resistor to VCC − 2.0 V. 6. VIHCMR min varies 1:1 with VEE, max varies 1:1 with VCC. The VIHCMR range is referenced to the most positive side of the differential input signal. Normal operation is obtained if the HIGH level falls within the specified range and the peak-to-peak voltage lies between VPPmin and 1 V. http://onsemi.com 3 MC100LVEL37 Table 6. AC CHARACTERISTICS VCC = 3.3 V; VEE = 0.0 V or VCC = 0.0 V; VEE = −3.3 V (Note 7) −40°C Symbol Characteristic Min Typ 25°C Max Min TBD Typ 85°C Max Min TBD Typ Max TBD Unit fmax Maximum Toggle Frequency GHz tPLH tPHL Propagation Delay tSKEW Within-Device Skew (Note 8) Duty Cycle Skew (Differential Configuration) (Note 9) tJITTER Cycle−to−Cycle Jitter VPP Input Swing (Note 10) 150 1000 150 1000 150 1000 mV tr tf Output Rise/Fall Times Q (20% − 80%) 280 550 280 550 280 550 ps ps CLK to Q/Q (Diff) CLK to Q/Q MR to Q 640 620 640 940 920 920 680 680 680 700 700 700 50 50 920 940 920 720 720 720 980 970 980 50 50 TBD 50 50 TBD TBD ps ps NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are applied individually under normal operating conditions and not valid simultaneously. 7. VEE can vary ±0.3 V. 8. Within-device skew defined as identical transitions on similar paths through a device. 9. Duty cycle skew is the difference between a TPLH and TPHL propagation delay through a device. 10. VPP(min) is minimum input swing for which AC parameters guaranteed. The device has a DC gain of ≈40. Q Zo = 50 W D Receiver Device Driver Device Q D Zo = 50 W 50 W 50 W VTT VTT = VCC − 2.0 V Figure 2. Typical Termination for Output Driver and Device Evaluation (See Application Note AND8020/D − Termination of ECL Logic Devices.) http://onsemi.com 4 MC100LVEL37 ORDERING INFORMATION Package Shipping† MC100LVEL37DW SO−20 WB 38 Units / Rail MC100LVEL37DWG SO−20 WB (Pb−Free) 38 Units / Rail MC100LVEL37DWR2 SO−20 WB 1000 / Tape & Reel MC100LVEL37DWR2G SO−20 WB (Pb−Free) 1000 / Tape & Reel Device †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Resource Reference of Application Notes AN1405/D − ECL Clock Distribution Techniques AN1406/D − Designing with PECL (ECL at +5.0 V) AN1503/D − ECLinPSt I/O SPiCE Modeling Kit AN1504/D − Metastability and the ECLinPS Family AN1568/D − Interfacing Between LVDS and ECL AN1672/D − The ECL Translator Guide AND8001/D − Odd Number Counters Design AND8002/D − Marking and Date Codes AND8020/D − Termination of ECL Logic Devices AND8066/D − Interfacing with ECLinPS AND8090/D − AC Characteristics of ECL Devices http://onsemi.com 5 MC100LVEL37 PACKAGE DIMENSIONS SO−20 WB DW SUFFIX CASE 751D−05 ISSUE G A 20 q X 45 _ E h H M 10X 0.25 NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT MAXIMUM MATERIAL CONDITION. 11 B M D 1 10 20X B B 0.25 M T A S B S L A 18X e A1 SEATING PLANE C T DIM A A1 B C D E e H h L q MILLIMETERS MIN MAX 2.35 2.65 0.10 0.25 0.35 0.49 0.23 0.32 12.65 12.95 7.40 7.60 1.27 BSC 10.05 10.55 0.25 0.75 0.50 0.90 0_ 7_ ECLinPS are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. 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