SY89328LMG TR Microchip

Precision Edge 3V LVTTL-TO-DIFFERENTIAL SY89328L Micrel, Inc. Precision Edge LVPECL AND DIFFERENTIAL SY89328L LVPECL-TO-LVTTL TRANSLATOR FEATURES 3.3V 10% power supply Precision Edge Guaranteed AC parameters over temperature: f > 275MHz (LVTTL) MAX DESCRIPTION < 2ns LVPECL-to-LVTTL propagation delay < 600ps LVTTL-to-LVPECL propagation delay The SY89328L is a differential LVPECL-to-LVTTL Internal 75k input pull-up and pull-down resistors translator and an LVTTL-to-differential LVPECL translator Industrial temperature range: 40C to +85C in a single package. Because LVPECL (Positive ECL) levels are used, only +3.3V and ground are required. The Available in ultra-small 8-pin MLF (2mm 2mm) SY89328L is functionally equivalent to the SY100EPT28L, package 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. Rev.: B Amendment: /0 M9999-072005 1 Issue Date: July 2005 hbwhelp micrel.com or (408) 955-1690 Precision Edge SY89328L Micrel, Inc. PACKAGE/ORDERING INFORMATION Ordering Information IN LVPECL 1 8 VCC Package Operating Package Lead /IN LVPECL 2 7 Q LVTTL Part Number Type Range Marking Finish SY89328LMITR MLF-8 Industrial HEP28 Sn-Pb Q LVPECL 3 6 IN LVTTL SY89328LMGTR MLF-8 Industrial HEP28 with Pb-Free /Q LVPECL 4 5 GND Pb-Free bar-line indicator NiPdAu 8-Pin MLF Ultra-Small Outline (2mm 2mm) PIN DESCRIPTION Pin Number Pin Name Type Pin Function 1, 2 IN LVPECL, 100k ECL Input Differential LVPECL Input: Includes internal 75k pull-down resistor on /IN LVPECL internal 75k 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 Single-ended LVTTL Input. 3, 4 Q LVPECL, 100k ECL Output Differential LVPECL Output: Translated from LVTTL input. See Output /Q LVPECL Interface Applications section for recommendations on terminations. 8 VCC VCC Power Positive Power Supply: Bypass with 0.1 F//0.01 F low ESR capacitors. 5 GND, Ground GND and exposed pad must be tied to ground plane. Exposed Pad M9999-072005 2 hbwhelp micrel.com or (408) 955-1690