Precision Edge ULTRA-PRECISION DIFFERENTIAL SY58602U Micrel, Inc. Precision Edge 400mV LVPECL LINE DRIVER/RECEIVER SY58602U WITH INTERNAL TERMINATION FEATURES Guaranteed AC performance over temperature and Precision Edge voltage: DC-to >10.7Gbps data rate throughput DESCRIPTION DC-to >7GHz clock f MAX <250ps In-to-Out t The SY58602U is a 2.5V/3.3V precision, high-speed, pd differential receiver capable of handling clocks up to 7GHz t / t <70ps r f and data streams up to 10.7Gbps. Ultra low-jitter design: The differential input includes Micrels unique, 3-pin input 75fs RMS phase jitter termination architecture that allows users to interface to any Minimum input swing 200mV ( IN/IN ) differential signal (AC- or DC-coupled) as small as 200mV pp without any level shifting or termination resistor networks in Unique, patent-pending input termination and VT pin the signal path. The outputs are 400mV LVPECL, with accepts DC- and AC-coupled inputs (CML, PECL, extremely fast rise/fall times guaranteed to be less than LVDS) 70ps. Typical 400mV LVPECL output swing The SY58602U operates from a +2.5V 5% supply or a Power supply 2.5V 5% or 3.3V 10% +3.3V 10% supply and is guaranteed over the full industrial 40 C to 85C industrial temperature range temperature range of 40 C to +85C. For applications that Available in an ultra-small (2mm 2mm) 8-pin QFN require CML outputs, consider the SY58600U or for 800mV package LVPECL outputs the SY58601U. The SY58602U is part of Micrels high-speed, Precision Edge product line. All support documentation can be found on Micrels web site at: www.micrel.com. APPLICATIONS Backplane buffering OC-12 to OC-192 SONET/SDN clock/data distribution All Gigabit Ethernet distribution Fibre Channel distribution FUNCTIONAL BLOCK DIAGRAM TYPICAL APPLICATION IN SY58602U Backplane 50 Q V T 100mV Input Swing 400mV Output Swing 50 /Q /IN V REF-AC 400mV 100mV Input Waveform Output Waveform United States Patent No. RE44,134 Precision Edge is a registered trademark of Micrel, Inc. Rev.: D Amendment: /0 M9999-082707 1 Issue Date: August 2007 hbwhelp micrel.com or (408) 955-1690 Precision Edge SY58602U Micrel, Inc. PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead IN 1 8 VCC Part Number Type Range Marking Finish (2) SY58602UMGTR MLF-8 Industrial 602 with Pb-Free VT 7 Q 2 Pb-Free bar-line indicator NiPdAu VREF-AC 3 6 /Q Notes: 4 /IN 5 GND 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC electricals only. A 2. Tape and Reel. 8-Pin QFN PIN DESCRIPTION Pin Number Pin Name Pin Function 1, 4 IN, /IN Differential Input: This input pair is the signal to be buffered. These inputs accept AC or DC- coupled signals as small as 100mV. Each pin of this pair internally terminates to a VT pin through 50 . Note that this input will default to an indeterminate state if left open. Please refer to the Input Interface Applications section for more details. 2 VT Input Termination Center-Tap: Each side of the differential input pair terminates to this pin. The VT pin provides a center-tap to a termination network for maximum interface flexibility. See Input Interface Applications section for more details. 3 VREF-AC Reference Output Voltage: This output biases to V 1.2V. Connect to VT pin when AC- CC coupling the input. Bypass with 0.01F low ESR capacitor to V . Maximum current source CC or sink is 0.5mA. See Input Interface Applications section. 8 VCC Positive Power Supply. Bypass with 0.1F 0.01F low ESR capacitors as close to the VCC pin as possible. 7, 6 Q, /Q Differential 100K LVPECL Output: This LVPECL output is the output of the device Terminate through 50 to V 2.0V. See Output Interface Applications section. CC 5 GND, Ground. Ground pin and exposed pad must be connected to the same ground plane. Exposed M9999-082707 2 hbwhelp micrel.com or (408) 955-1690