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SY88216LMG Datasheet(PDF) 5 Page - Micrel Semiconductor |
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SY88216LMG Datasheet(HTML) 5 Page - Micrel Semiconductor |
5 / 11 page Micrel, Inc. SY88216L July 2008 5 M9999-071108-C hbwhelp@micrel.com or (408) 955-1690 AC Electrical Characteristics TA = –40°C to +85°C and VCC = +3.0V to +3.6V. Unless otherwise noted, typical values are VCC = +3.3V, TA = 25°C, IMOD = 25mA, IBIAS = 20mA. Symbol Parameter Condition Min Typ Max Units Data Rate NRZ 0.155 2.5 Gbps IMOD Modulation Current (5) AC-coupled 10 85 mA DC-coupled, Voltage at MOD Pin ≥0.6V 10 70 (6) mA IMOD_OFF Modulation OFF Current Current at MOD+ when /EN is High or BEN is High 150 µA Current at MOD- when /EN is High or BEN is Low 150 µA tr Output Current Rise Time 20% to 80%, IMOD = 60mA 60 85 ps tf Output Current Fall Time 20% to 80%, IMOD = 60mA 60 85 ps Jitter Total Jitter (7) 155Mbps 30 psPP 622Mbps 30 1.25Gbps 30 2.5Gbps 30 tINIT APC Loop Initialization Time Power up with /En Low and BEN High 12 µs /EN Changes from High to Low with Power ON and BEN High 10 µs BEN Changes from Low to High with Power ON and /EN Low 2.5 ns Burst Enable Delay (8, 9) 2.5 ns Burst Disable Delay (8, 10) 2 ns Burst ON-Time 155Mbps 1.9 µs 622Mbps 720 ns 1.25Gbps 576 ns 2.5Gbps 576 ns Burst OFF-Time 155Mbps 1.9 µs 622Mbps 720 ns 1.25Gbps 576 ns 2.5Gbps 576 ns Notes: 5. Load = 15 Ω. 6. Assuming VCC = 3.0V, Laser bandgap voltage = 1V, laser package inductance = 1nH, laser equivalent series resistor = 5 Ω, and damping resistor = 10 Ω. 7. Total jitter is measured using 2 7 – 1 PRBS pattern. 8. Measured with a laser equivalent resistive load. 9. Burst Enable Delay is measured as the time between the instant when the BEN+ signal going from low to high reaches 50% of its amplitude and the instant at which the modulation current or the bias current (whichever takes longer) reaches 90% of its final value. 10. Burst Disable Delay is measured as the time between the instant when the BEN+ signal going from high to low reaches 50% of its amplitude and the instant at which the modulation current or the bias current (whichever takes longer) goes below 10% of its final value. |
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