SY58039UMI

NOT RECOMMENDED FOR NEW DESIGNS Micrel ULTRA PRECISION 8:1 MUX WITH INTERNAL TERMINATION AND 1:2 400mV LVPECL FANOUT BUFFER Precision Edge™ SY58039U Precision Edge™ SY58039U FEATURES - Selects between 1 of 8 inputs, and provides 2 precision, low skew LVPECL output copies - Ultra-low jitter design: • 80fsrms phase jitter (typ) - Guaranteed AC performance over temperature and voltage: • DC to 5Gbps throughput • 100mV) • 100mV (SEL-to-Q) Δtpd Tempco Output-to-Output Skew Part-to-Part Skew Max GHz 500 ps 600 ps 220 fs/°C Note 9 15 ps Note 10 150 ps tJITTER RMS Phase Jitter Output = 622MHz Integration Range: 12kHz - 20MHz tr, tf Output Rise/Fall Time At full output swing, 20% to 80%. 80 25 60 fsrms 85 Notes: 8. High-frequency AC-parameters are guaranteed by design and characterization. 9. Output-to-output skew is measured between two different outputs under identical input transitions. 10. Part-to-part 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. PHASE NOISE Noise Power (dBc/Hz) RMS PHase Jitter (Random) 12kHz to 20MHz = 80fs (Typical) OFFSET FREQUENCY (Hz) Phase Noise Plot: 622MHz @ 3.3V M9999-102711 hbwhelp@micrel.com or (408) 955-1690 Units Gbps 150 Differential Propagation Delay Temperature Coefficient tSKEW Typ 6 ps Precision Edge™ SY58039U Micrel SINGLE-ENDED AND DIFFERENTIAL SWINGS VDIFF_IN, VDIFF_OUT 800mV (Typ.) VIN, VOUT 400mV (Typ.) Figure 1a. Single-Ended Voltage Swing M9999-102711 hbwhelp@micrel.com or (408) 955-1690 Figure 1b. Differential Voltage Swing 7 Precision Edge™ SY58039U Micrel TYPICAL OPERATING CHARACTERISTICS VCC = 3.3V, GND = 0, VIN = 100mV, TA = 25°C, unless otherwise stated. 300 200 100 1000 2000 3000 4000 5000 FREQUENCY (MHz) M9999-102711 hbwhelp@micrel.com or (408) 955-1690 Within Device Skew vs. Temperature 350 PROPAGATION DELAY (ps) 400 0 0 1.2 WITHIN DEVICE SKEW (ps) OUTPUT AMPLITUDE (mV) 500 Output Amplitude vs. Frequency 1.0 0.8 0.6 0.4 0.2 0 -40 -20 0 20 40 60 80 100 TEMPERATURE (°C) 8 Propagation Delay vs. Temperature 345 340 335 330 325 320 315 -40 -20 0 20 40 60 80 100 TEMPERATURE (°C) Precision Edge™ SY58039U Micrel FUNCTIONAL CHARACTERISTICS VCC = 3.3V, GND = 0, VIN = 100mV, TA = 25°C, unless otherwise stated. 1.25Gbps Output (Q – /Q) Output Swing (200mV/div.) Output Swing (200mV/div.) 2.5Gbps Output (Q – /Q) TIME (100ps/div.) 3.2Gbps Output (Q – /Q) 5Gbps Output (Q – /Q) Output Swing (200mV/div.) Output Swing (200mV/div.) TIME (200ps/div.) TIME (50ps/div.) 200MHz Output 1.25GHz Output Output Swing (100mV/div.) Output Swing (100mV/div.) TIME (75ps/div.) TIME (100ps/div.) TIME (600ps/div.) M9999-102711 hbwhelp@micrel.com or (408) 955-1690 9 Precision Edge™ SY58039U Micrel FUNCTIONAL CHARACTERISTICS (CONTINUED) 5GHz Output Output Swing (100mV/div.) Output Swing (100mV/div.) 2.5GHz Output TIME (30ps/div.) TIME (50ps/div.) M9999-102711 hbwhelp@micrel.com or (408) 955-1690 10 Precision Edge™ SY58039U Micrel INPUT AND OUTPUT STAGES VCC VCC IN 50Ω VT 50Ω GND /Q /IN Q Figure 2a. Simplified Differential Input Stage Figure 2b. Simplified LVPECL Output Stage INPUT INTERFACE APPLICATIONS VCC VCC VCC IN IN LVPECL VCC GND VT NC Rpd SY58039U VCC GND VT VREF-AC GND For VCC = 3.3V, Rpd = 50Ω. For VCC = 2.5V, Rpd = 19Ω. Figure 3a. LVPECL Interface (DC-Coupled) /IN SY58039U Rpd VREF-AC Rpd CML /IN SY58039U 0.01μF IN LVPECL /IN 0.01μF For 3.3V, Rpd = 100Ω. For 2.5V, Rpd = 50Ω. Figure 3b. LVPECL Interface (AC-Coupled) VCC VCC IN CML IN /IN SY58039U GND VCC LVDS /IN SY58039U VT VREF-AC 0.01μF Figure 3d. CML Interface (AC-Coupled) M9999-102711 hbwhelp@micrel.com or (408) 955-1690 GND NC VT NC VREF-AC Figure 3e. LVDS Interface 11 GND NC VT NC VREF-AC Option: May connect VT to VCC. Figure 3c. CML Interface (DC-Coupled) Precision Edge™ SY58039U Micrel OUTPUT INTERFACE APPLICATIONS +3.3V +3.3V ZO = 50Ω R1 130Ω +3.3V R1 130Ω +3.3V +3.3V Zo = 50Ω Zo = 50Ω ZO = 50Ω VCC R2 82Ω R2 82Ω 50Ω C1 0.01μF (optional) Figure 4a. Parallel Thevenin-Equivalent Termination 50Ω Rb Figure 4b. Parallel Termination (3-Resistor) Note: Note: For +2.5V system, R1 = 250ohms, R2 = 62.5ohms. For +2.5V system, Rb =19ohms. For +3.3V system, Rb = 50ohms. RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION Part Number Function Data Sheet Link SY58037U Ultra Precision 8:1 MUX with Internal Termination and 1:2 CML Fanout Buffer http://www.micrel.com/product-info/products/sy58037u.shtml SY58038U Ultra Precision 8:1 MUX with Internal Termination and 1:2 LVPECL Fanout Buffer http://www.micrel.com/product-info/products/sy58038u.shtml SY58039U Ultra Precision 8:1 MUX with Internal Termination and 1:2 400mV LVPECL Fanout Buffer http://www.micrel.com/product-info/products/sy58039u.shtml MLF™ Application Note www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf New Products and Applications www.micrel.com/product-info/products/solutions.shtml HBW Solutions M9999-102711 hbwhelp@micrel.com or (408) 955-1690 12 Precision Edge™ SY58039U Micrel 44 LEAD QFN (QFN-44) Package EP- Exposed Pad Die CompSide Island Heat Dissipation Heat Dissipation Heavy Copper Plane Heavy Copper Plane VEE VEE PCB Thermal Consideration for 44-Pin QFN 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. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right 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 a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. M9999-102711 hbwhelp@micrel.com or (408) 955-1690 13