Precision Edge 3.3V DUAL Micrel, Inc. SY89222L Precision Edge TTL-to-DIFFERENTIAL SY89222L PECL TRANSLATOR FEATURES 3.3V power supply Precision Edge 300ps typical propagation delay <100ps output-to-output skew DESCRIPTION Differential LVPECL outputs PNP TTL inputs for minimal loading The SY89222L is a dual TTL-to-differential LVPECL translator with a +3.3V power supply. Because LVPECL Flow-through pinouts (Positive ECL) levels are used, only +3.3V and ground are Available in ultra-small 8-pin MLF (2mm 2mm) required. The SY89222L is functionally equivalent to the package SY100ELT22L but in an ultra-small 8-lead MLF package that features a 70% smaller footprint. The low skew, dual gate design of the SY89222L makes it ideal for applications that require the translation of a clock and a data signal. FUNCTIONAL CROSS REFERENCE TABLE Micrel Part Number Functional Cross 22 MLF PECL 8-SOIC SY89222L 100K SY100ELT22 Precision Edge is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame are trademarks of Amkor Technology, Inc. Rev.: B Amendment: /0 M9999-051805 1 Issue Date: May 2005 hbwhelp micrel.com or (408) 955-1690 Precision Edge Micrel, Inc. SY89222L PACKAGE/ORDERING INFORMATION (1) Ordering Information Q0 1 8 VCC Package Operating Package Lead /Q0 2 D0 Part Number Type Range Marking Finish 7 LVPECL TTL (2) SY89222LMITR MLF-8 Industrial 222 Sn-Pb Q1 3 6 D1 (2) SY89222LMGTR MLF-8 Industrial 222 with Pb-Free /Q1 4 5 GND Pb-Free bar-line indicator NiPdAu Notes: TOP VIEW 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC electricals only. A 8-Pin MLF 2. Tape and Reel. Ultra-Small Outline (2mm 2mm) PIN DESCRIPTION Pin Number Pin Name Type Pin Function 7, 6 D0, D1 TTL Input Single-ended TTL inputs. If left open, defaults to HIGH. 1, 2, 3, 4 Q0, /Q0, 100k LVPECL Differential LVPECL Outputs: See Output Interface Applications section Q1, /Q1 Output for recommendations on terminations. Q defaults to HIGH (/Q defaults to LOW) when D input is left open. 8 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 M9999-051805 2 hbwhelp micrel.com or (408) 955-1690