SY89328LMG-TR

3V LVTTL-TO-DIFFERENTIAL LVPECL AND DIFFERENTIAL LVPECL-TO-LVTTL TRANSLATOR Micrel, Inc. Precision Edge® SY89328L ® Precision Edge SY89328L FEATURES ■ 3.3V ±10% power supply ■ Guaranteed AC parameters over temperature: fMAX > 275MHz (LVTTL) ■ < 2ns LVPECL-to-LVTTL propagation delay ■ < 600ps LVTTL-to-LVPECL propagation delay ■ Internal 75kΩ input pull-up and pull-down resistors ■ Industrial temperature range: –40°C to +85°C ■ Available in ultra-small 8-pin MLF™ (2mm × 2mm) package Precision Edge® DESCRIPTION The SY89328L is a differential LVPECL-to-LVTTL translator and an LVTTL-to-differential LVPECL translator in a single package. Because LVPECL (Positive ECL) levels are used, only +3.3V and ground are required. The SY89328L is functionally equivalent to the SY100EPT28L, but in an ultra-small 8-lead MLF™ package that features a 70% smaller footprint. This ultra-small package and the dual translation design of the SY89328L make it ideal for applications that are sending and receiving signals across a backplane. BLOCK DIAGRAM IN_LVPECL Q_LVTTL /IN_LVPECL Q_LVPECL IN_LVTTL /Q_LVPECL Precision Edge is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. M9999-072005 hbwhelp@micrel.com or (408) 955-1690 Rev.: B 1 Amendment: /0 Issue Date: July 2005 Precision Edge® SY89328L Micrel, Inc. PACKAGE/ORDERING INFORMATION Ordering Information IN_LVPECL 1 8 VCC /IN_LVPECL 2 7 Q_LVTTL Part Number Q_LVPECL 3 6 IN_LVTTL GND /Q_LVPECL 4 5 Package Type Operating Range Package Marking Lead Finish SY89328LMITR MLF-8 Industrial HEP28 Sn-Pb SY89328LMGTR MLF-8 Industrial HEP28 with Pb-Free bar-line indicator Pb-Free NiPdAu 8-Pin MLF™ Ultra-Small Outline (2mm × 2mm) PIN DESCRIPTION Pin Number Pin Name Type 1, 2 IN_LVPECL, /IN_LVPECL 100k ECL Input Differential LVPECL Input: Includes internal 75kΩ pull-down resistor on internal 75kΩ pull-up and pull-down resistors on /IN. See “Input Interface Applications” section for single-ended inputs. 7 Q_LVTTL LVTTL Output Single-ended LVTTL Output: Translated from LVPECL input. Q_LVTTL output will default LOW with IN_LVPECL and /IN_LVPECL inputs left open. 6 IN_LVTTL LVTTL Input 3, 4 Q_LVPECL, /Q_LVPECL 100k ECL Output Differential LVPECL Output: Translated from LVTTL input. See “Output Interface Applications” section for recommendations on terminations. 8 VCC VCC Power Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors. 5 GND, Exposed Pad Ground ` M9999-072005 hbwhelp@micrel.com or (408) 955-1690 Pin Function Single-ended LVTTL Input. GND and exposed pad must be tied to ground plane. 2 Precision Edge® SY89328L Micrel, Inc. Absolute Maximum Ratings(Note 1) Operating Ratings(Note 2) Supply Voltage (VCC) .................................. –0.5V to +3.8V Input Voltage (VIN) ......................................... –0.5V to VCC LVPECL Output Current (IOUT) Continuous ............................................................. 50mA Surge .................................................................... 100mA Input Current Source or sink current on IN, /IN .......................... ±50mA Lead Temperature (soldering, 20 sec.) ................... +260°C Storage Temperature (TS) ....................... –65°C to +150°C Supply Voltage (VCC) ...................................... 3.0V to 3.6V Ambient Temperature (TA) ......................... –40°C to +85°C Package Thermal Resistance, Note 3 MLF™ (θJA) Still-Air ................................................................. 93°C/W 500lfpm ............................................................... 87°C/W MLF™ (ΨJB) Junction-to-Board ................................................ 60°C/W Note 1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to ABSOLUTE MAXIMUM RATlNG conditions for extended periods may affect device reliability. Note 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. Note 3. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB. DC ELECTRICAL CHARACTERISTICS(Note 4) Symbol Parameter VCC Power Supply Voltage ICC Power Supply Current Condition Min Typ Max Units 3.0 3.3 3.6 V 22 40 mA Max VCC, No Load LVPECL DC ELECTRICAL CHARACTERISTICS(Note 4) VCC = +3.3V±10% and VEE = 0V; RL = 50Ω to VCC–2V; TA = –40°C to +85°C, unless otherwise noted. Symbol Parameter VOH Output HIGH Voltage VCC–1.145 VCC–1.020 VCC–0.895 V VOL Output LOW Voltage VCC–1.945 VCC–1.820 VCC–1.695 V VIH Input HIGH Voltage VCC–1.225 VCC–0.880 V VIL Input LOW Voltage VCC–1.945 VCC–1.625 V VCMR LVPECL Common Mode Range 1.2 VCC V IIH Input HIGH Current 150 µA IIL Input LOW Current Note 4. Condition Min VIN = 3.46V Typ Max IN 0.5 µA /IN –300 µA The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. M9999-072005 hbwhelp@micrel.com or (408) 955-1690 Units 3 Precision Edge® SY89328L Micrel, Inc. LVTTL DC ELECTRICAL CHARACTERISTICS(Note 5) VCC = +3.3V±10%; CL = 20pF, TA = –40°C to +85°C, unless otherwise noted. Symbol Parameter Condition Min Typ Max Units VOH Output HIGH Voltage IOH = –3mA 2.0 — — V VOL Output LOW Voltage IOH = –24mA — — 0.5 V VIH Input HIGH Voltage 2.0 — — V VIL Input LOW Voltage — — 0.8 V VIK Input Clamp Voltage IIK = –18mA — — –1.2 V IIH Input HIGH Current VIN = 2.7V — — 20 µA VIN = VCC — — 100 µA IIL Input LOW Current VIN = 0.5V — — –0.2 µA IOUT(SC) LVTTL Output Short-Circuit Current VOUT = 0V –275 — –80 mA Condition Min Typ Max Units LVPECL Note 6 700 — — MHz LVTTL Note 7 275 350 — MHz Propagation Delay IN_LVPECL-to-Q_LVTTL Note 7 1.5 — 2.5 ns IN_LVTTL-to-Q_LVPECL Note 6 100 400 600 ps Note 8 100 — — mV 45 50 55 % AC ELECTRICAL CHARACTERISTICS VCC = +3.3V±10%. TA = –40°C to +85°C, unless otherwise noted. Symbol Parameter fMAX Maximum Frequency tpd VPP LVPECL Input Voltage Swing (Single-Ended) tDC Duty Cycle tJitter Cycle-toCycle Jitter Note 9