Precision Edge ULTRA-PRECISION DIFFERENTIAL SY58600U Micrel, Inc. Precision Edge CML LINE DRIVER/RECEIVER SY58600U 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 <220ps in-to-out t pd The SY58600U is a 2.5V/3.3V precision, high-speed, t /t <60ps r f differential receiver capable of handling clocks up to 7GHz Ultra low-jitter design: and data streams up to 10.7Gbps. <1ps random jitter The differential input includes Micrels unique, 3-pin input RMS <10ps deterministic jitter termination architecture that allows users to interface to any PP <10ps total jitter (clock) differential signal (AC or DC-coupled) as small as 200mV PP pp without any level shifting or termination resistor networks in Minimum input swing 200mV ( IN/IN ) the signal path. The outputs are 400mV CML, with extremely Unique, patent-pending input termination and VT pin fast rise/fall times guaranteed to be less than 60ps. accepts DC-coupled and AC-coupled inputs (CML, The SY58600U operates from a 2.5V 5% supply or a PECL, LVDS) 3.3V 10% supply and is guaranteed over the full industrial Internal 50 output source termination temperature range of 40C to +85C. For applications Typical 400mV CML output swing that require 800mV LVPECL outputs, consider the Power supply 2.5V 5% or 3.3V 10% SY58601U or for 400mV LVPECL outputs the SY58602U. The SY58600U is part of Micrels high-speed, Precision 40C to 85C industrial temperature range Edge product line. Available in an ultra-small (2mm 2mm) 8-pin MLF All support documentation can be found on Micrels web package 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 TYPICAL APPLICATION FUNCTIONAL BLOCK DIAGRAM IN SY58600U 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. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. Rev.: C Amendment: /0 M9999-082707 1 Issue Date: August 2007 hbwhelp micrel.com or (408) 955-1690 Precision Edge SY58600U Micrel, Inc. PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead IN 1 8 VCC Part Number Type Range Marking Finish (2) SY58600UMITR MLF-8 Industrial 600 Sn-Pb VT 7 Q 2 (2, 3) SY58600UMGTR MLF-8 Industrial 600 with Pb-Free VREF-AC 3 6 /Q Pb-Free bar-line indicator NiPdAu 4 /IN 5 GND Notes: 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC electricals only. A 8-Pin MLF (MLF-8) 2. Tape and Reel. 3. Pb-Free package recommended for new designs. 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. 2VT 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 CML Output: Differential buffered output copy of the input signal. The differential output swing is typically 800mV into a 50 load, or 100 across the pair. See Output Interface Applications section. 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