Precision Edge ULTRA-LOW JITTER 2 2 CROSSPOINT Micrel, Inc. SY58023U Precision Edge SWITCH w/CML OUTPUTS AND SY58023U INTERNAL I/O TERMINATION FEATURES Guaranteed AC performance over temperature and voltage: Precision Edge >10.7Gbps data throughput DESCRIPTION <60ps t /t times r f <285ps t (IN-to-Q) pd The SY58023U is a 2.5V/3.3V precision, high-speed, fully <20ps skew differential CML 2 2 crosspoint switch. The SY58023U is optimized to provide two identical output copies with less Low jitter: than 20ps of skew and ultra-low jitter. It can route clock <10ps total jitter (clock) pp signals as fast as 6GHz or data up to 10.7Gbps. <1ps random jitter (data) rms The differential input includes Micrels unique, 3-pin input <10ps deterministic jitter (data) pp termination architecture that allows the SY58023U to directly Crosstalk induced jitter: <0.7ps interface to LVPECL, LVDS, and CML differential signals rms (AC- or DC-coupled) as small as 100mV (200mV ) without Accepts an input signal as low as 100mV pp any level-shifting or termination resistor networks in the signal Unique input termination and V pin accepts DC- T path. The CML outputs features 400mV typical swing into coupled and AC-coupled differential inputs: 50 loads, and provide an extremely fast rise/fall time LVPECL, LVDS, and CML guaranteed to be less than 60ps. 50 source terminated CML outputs The SY58023U operates from a +2.5V 5% supply or Fully differential inputs/outputs +3.3V 10% supply and is guaranteed over the full industrial Power supply 2.5V 5% and 3.3V 10% temperature range (40C to +85C). For applications that require high speed dual CML switches, consider the Industrial 40C to +85C temperature range SY58024U. The SY58023U is part of Micrels high-speed, Available in 16-pin (3mm 3mm) MLF package Precision Edge product line. Datasheets and support documentation can be found on Micrels website at www.micrel.com. FUNCTIONAL BLOCK DIAGRAM APPLICATIONS Gigabit Ethernet data/clock routing SEL0 SONET data/clocking routing (TTL/CMOS) Switch fabric clock routing 0 IN0 Q0 Redundant switchover 50 Backplane redundancy V T0 /Q0 50 1 /IN0 SEL1 (TTL/CMOS) IN1 0 Q1 50 V T1 /Q1 50 1 /IN1 Precision Edge is a registered trademark of Micrel , Inc. MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc. Rev.: G Amendment: /0 M9999-082807 1 Issue Date: August 2007 hbwhelp micrel.com or (408) 955-1690 Precision Edge Micrel, Inc. SY58023U PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead 16 15 14 13 Part Number Type Range Marking Finish IN0 1 12 Q0 SY58023UMI MLF-16 Industrial 023U Sn-Pb /IN0 2 11 /Q0 (2) SY58023UMITR MLF-16 Industrial 023U Sn-Pb /Q1 /IN1 3 10 (3) SY58023UMG MLF-16 Industrial 023U with Pb-Free 4 IN1 9 Q1 Pb-Free bar-line indicator NiPdAu (2, 3) 5 6 7 8 SY58023UMGTR MLF-16 Industrial 023U with Pb-Free Pb-Free bar-line indicator NiPdAu Notes: 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC electricals only. A 16-Pin MLF (MLF-16) 2. Tape and Reel. 3. Pb-Free package recommended for new designs. PIN DESCRIPTION Pin Number Pin Name Pin Function 1, 2, IN0, /IN0, Differential Signal Input: Each pin of this pair internally terminates with 50 to the VT pin. 3, 4 /IN1, IN1 Note that this input will default to an indeterminate state if left open. See Input Interface Applications section. 16, 5 VT0, VT1 Input Termination Center-Tap: Each input terminates to this pin. The VT pin provides a center-tap for each input (IN, /IN) to a termination network for maximum interface flexibility. See Input Interface Applications section. 15, 6 SEL0, SEL1 Select Input: TTL/CMOS select input control that selects inputs IN0, or IN1. Note that this input is internally connected to a 25k pull-up resistor and will default to a logic High state if left open. 7, 14 GND, Ground. Exposed pad must be connected to a ground plane that is the same potential as (Exposed Pad) the device ground pin. 8, 13 VCC Positive Power Supply: Bypass with 0.1F0.01F low ESR capacitors as close to the pins as possible. 12, 11, 10, 9 Q0, /Q0, /Q1, Q1 CML Differential Output Pairs: Differential buffered output copy of the selected input signal. The CML output swing is typically 400mV across 100 . Unused output pairs may be left floating with no impact on jitter. See CML Output Termination section. TRUTH TABLE SEL0 SEL1 Q0 Q1 LL IN0 IN0 LH IN0 IN1 HL IN1 IN0 HH IN1 IN1 M9999-082807 2 hbwhelp micrel.com or (408) 955-1690 VT1 VT0 SEL1 SEL0 GND GND VCC VCC