PDF SY58024U Data sheet ( Hoja de datos )

Número de pieza	SY58024U
Descripción	CROSSPOINT SWITCH CML OUTPUTS AND INTERNAL I/O TERMINATION
Fabricantes	Micrel Semiconductor
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No Preview Available ! www.DataSheet4U.com Micrel ULTRA-LOW JITTER DUAL 2 × 2 CROSSPOINT SWITCH w/ CML OUTPUTS AND INTERNAL I/O TERMINATION Precision Edge™ Precision ESdYg5e80™24U SY58024U FEATURES s Guaranteed AC performance over temperature and voltage: • >10.7Gbps data throughput • <60ps tr/tf times • <350ps tpd (IN-to-Q) • <20ps skew s Low jitter: • <10pspp total jitter (clock) • <1psrms random jitter (data) • <10pspp deterministic jitter (data) s Crosstalk induced jitter: <0.7psrms s Unique, patent-pending input isolation minimizes adjacent channel crosstalk s Accepts an input signal as low as 100mV s Unique, patent-pending input termination and VT pin accepts DC-coupled and AC-coupled differential inputs: LVPECL, LVDS, and CML s Fully differential inputs/outputs s 50Ω source terminated CML outputs s Power supply 2.5V ±5% and 3.3V ±10% s Industrial –40°C to +85°C temperature range s Available in 32-pin (5mm × 5mm) MLF™ package APPLICATIONS Precision Edge™ DESCRIPTION The SY58024U is a 2.5V/3.3V precision, high-speed, fully differential dual CML crosspoint switch. The SY58024U is optimized to provide two identical output copies with less than 20ps of skew and ultra-low jitter. The SY58024U can process clock signals as fast as 6GHz or data patterns up to 10.7Gbps. The differential input includes Micrel’s unique, 3-pin input termination architecture that allows the SY58024U to directly interface to LVPECL, LVDS, and CML differential signal (AC- or DC-coupled) without any level-shifting or termination resistor networks in the signal path. The CML outputs features a 400mV typical swing into 50Ω loads, and provides an extremely fast rise/fall time guaranteed to be less than 60ps. The SY58024U operates from a 2.5V ±5% supply or 3.3V ±10% supply and is guaranteed over the full industrial temperature range (–40°C to +85°C). For applications that require high-speed single channel CML switches, consider the SY58023U. The SY58024U is part of Micrel’s high- speed, Precision Edge™ product line. Data sheets and support documentation can be found on Micrel’s website at www.micrel.com. s Gigabit Ethernet data/clock routing s SONET data/clocking routing s Switch fabric clock routing s Redundant switchover s Backplane redundancy Precision Edge is a trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. M9999-091404 [email protected] or (408) 955-1690 1 Rev.: B Amendment: /0 Issue Date: September 2004 1 page Micrel Precision Edge™ SY58024U AC ELECTRICAL CHARACTERISTICS(6) VCC = +2.5V ±5% or +3.3V ±10%; RL = 100Ω across each output pair; TA = –40°C to +85°C, unless otherwise stated. Symbol Parameter Condition Min Typ Max Units fMAX Maximum Operating Frequency VIN ≥ 100mV; VOUT ≥ 200mV Clock 6 NRZ Data 10.7 GHz Gbps tpd Propagation Delay IN-to-Q SEL-to-Q 200 350 ps 100 400 ps tSKEW Channel-to-Channel Skew (Within Bank) Note 7 20 ps Part-to-Part Skew Note 8 75 ps tJITTER Clock Data Cycle-to-Cycle Jitter Total Jitter Random Jitter Deterministic Jitter Crosstalk Induced Jitter Adjacent Channel Note 9 Note 10 Note 11 Note 12 Note 13 1 psrms 10 pspp 1 psrms 10 pspp 0.7 psrms tr, tf Output Rise/Fall Time 20% to 80% at full swing. 25 60 ps Notes: 6. High frequency AC-parameters are guaranteed by design and characterization. 7. Skew is measured between outputs of the same bank under identical transitions. 8. Skew is defined for two parts with identical power supply voltages at the same temperature and with no skew of the edges at the respective inputs. 9. Cycle-to-cycle jitter definition: The variation of periods between adjacent cycles, Tn–Tn–1 where T is the time between rising edges of the output signal. 10. Total jitter definition: With an ideal clock input of frequency ≤ fMAX, no more than one output edge in 1012 output edges will deviate by more than the specified peak-to-peak jitter value. 11. Random jitter is measured with a K28.7 comma detect character pattern, measured at 2.5Gbps–3.2Gbps. 11. Deterministic jitter is measured at 2.5Gbps–3.2Gbps with both K28.5 and 223–1 PRBS pattern. 13. Crosstalk induced jitter is defined as the added jitter that results from signals applied to two adjacent channels. It is measured at the output while applying similar, differential clock frequencies that are asynchronous with respect to each other at inputs. SINGLE-ENDED AND DIFFERENTIAL SWINGS VIN, VOUT Typ. 400mV Figure 1a. Single-Ended Voltage Swing VDIFF_IN, VDIFF_OUT (Typ. 800mV) Figure 1b. Differential Voltage Swing M9999-091404 [email protected] or (408) 955-1690 5 5 Page Micrel 32 LEAD MicroLeadFrame™ (MLF-32) Precision Edge™ SY58024U Package EP- Exposed Pad Die Rev. 01 CompSide Island Heat Dissipation Heat Dissipation Heavy Copper Plane Heavy Copper Plane VEE VEE PCB Thermal Consideration for 32-Pin MLF™ Package (Always solder, or equivalent, the exposed pad to the PCB) Package Notes: 1. Package meets Level 2 qualification. 2. All parts are dry-packaged before shipment. 3. Exposed pads must be soldered to a ground for proper thermal management. MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2004 Micrel, Incorporated. M9999-091404 [email protected] or (408) 955-1690 11 11 Page

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