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SY84113BUMG Datasheet(PDF) 4 Page - Micrel Semiconductor |
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SY84113BUMG Datasheet(HTML) 4 Page - Micrel Semiconductor |
4 / 8 page Micrel, Inc. SY84113BU January 2011 4 M9999-011711-A hbwhelp@micrel.com or (408) 955-1690 AC Electrical Characteristics VCC = 2.5 ± 5%; TA = –40°C to +85°C, typical values at VCC = 2.5V, TA = 25°C.; RLoad = 50Ω to VCC; Symbol Parameter Condition Min Typ Max Units tr, tf Output Rise/Fall Time (20% to 80%) Note 4 150 260 ps tJITTER Deterministic Random Note 5 Note 6 15 5 psPP psRMS VID Differential Input Voltage Swing 5 1800 mVPP VOD Differential Output Voltage Swing Note 4 700 800 950 mVPP TOFF LOS Release Time Note 9 2 10 uS TON LOS Assert Time Note 9 2 10 uS LOSAL Low LOS Assert Level RLOSLVL = 10kΩ, Note 7 3.9 mVPP LOSDL Low LOS De-assert Level RLOSLVL = 10kΩ, Note 7 5.6 mVPP HYSL Low LOS Hysteresis RLOSLVL = 10kΩ, Note 8 2 3.1 4.5 dB LOSAM Medium LOS Assert Level RLOSLVL = 5kΩ, Note 7 7 9.2 mVPP LOSDM Medium LOS De-assert Level RLOSLVL = 5kΩ, Note 7 13.6 16 mVPP HYSM Medium LOS Hysteresis RLOSLVL = 5kΩ, Note 8 2 3.4 4.5 dB LOSAH High LOS Assert Level RLOSLVL = 100Ω, Note 7 60 73 mVPP LOSDH High LOS De-assert Level RLOSLVL = 100Ω, Note 7 103 130 mVPP HYSH High LOS Hysteresis RLOSLVL = 100Ω, Note 8 2 3.0 4.5 dB B-3dB 3dB Bandwidth 850 MHz AV(Diff) Differential Voltage Gain 38 dB S21 Single-Ended Small-Signal Gain 26 32 dB Notes : 1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability. 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. Package Thermal Resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB. ψJB uses a 4-layer and θJA in still air unless otherwise stated. 4. Amplifier in limiting mode. Input is a 200MHz square wave. 5. Deterministic jitter measured using 1.250 Gbps K28.5 pattern, VID = 60mVPP. 6. Random jitter measured using 1.250Gbps K28.7 pattern, VID = 60mVPP. 7. See “Typical Operating Characteristics” for a graph showing how to choose a particular RLOSLVL for a particular LOS assert and its associated de-assert amplitude. 8. This specification defines electrical hysteresis as 20log (LOS De-Assert/LOS Assert). The ratio between optical hysteresis and electrical hysteresis is found to vary between 1.5 and 2 depending upon the level of received optical power and ROSA characteristics. Based on that ratio, the optical hysteresis corresponding to the electrical hysteresis range 2dB-4.5 dB, shown in the AC characteristics table, will be 1dB-3dB Optical Hysteresis. 9. In real world applications, the LOS Release/Assert time can be strongly influenced by the RC time constant of the AC-coupling cap and the 50Ω input termination. To keep this time low, use a decoupling cap with the lowest value that is allowed by the data rate and the number of consecutive identical bits in the application (typical values are in the range of 0.001µF to 1.0µF). |
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