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SY88232LMGTR Datasheet(PDF) 9 Page - Micrel Semiconductor |
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SY88232LMGTR Datasheet(HTML) 9 Page - Micrel Semiconductor |
9 / 18 page Micrel, Inc. SY88232L/AL June 2009 9 M9999-063009-A hbwhelp@micrel.com or (408) 955-1690 Post Amplifier Symbol Parameter Condition Min Typ Max Units tr, tf Output Rise/Fall Time (20% to 80%) Note 8 60 120 ps tJITTER Deterministic Random Note 9 Note 10 15 5 psPP psRMS VDiff_IN (RIN) Differential Input Voltage Swing 5 1800 mVPP VDiff_OUT (ROUT) Differential Output Voltage Swing Note 8 700 800 950 mVPP GRSSI RSSI Gain = IRSSI / VDiff_IN (RIN) 5mVPP ≤ VDiff_IN (RIN) ≤ 200mVPP 5 µA/ mVPP RSSI Linearity 5mVPP ≤ VDiff_IN (RIN) ≤ 200mVPP ± 2.5 % LOSAL Low LOS Assert Level RLOSLVL = 15kΩ 2 8 mVPP LOSDL Low LOS De-assert Level RLOSLVL = 15kΩ 10 20 mVPP HSYL Low LOS Hysteresis RLOSLVL = 15kΩ, Note 11 1.5 2.6 6 dB LOSAM Medium LOS Assert Level RLOSLVL = 5kΩ 4 12 mVPP LOSDM Medium LOS De-assert Level RLOSLVL = 5kΩ 16 30 mVPP HSYM Medium LOS Hysteresis RLOSLVL = 5kΩ, Note 11 1.5 2.8 6 dB LOSAH High LOS Assert Level RLOSLVL = 100Ω 15 25 mVPP LOSDH High LOS De-assert Level RLOSLVL = 100Ω 36 50 mVPP HSYH High LOS Hysteresis RLOSLVL = 100Ω 1.5 3.2 6 dB TOFF LOS Release Time Note 12 2 10 µs TON LOS Assert Time Note 12 2 10 µs B-3dB 3dB Bandwidth 2.0 GHz AV(Diff) Differential Voltage Gain 38 dB S21 Single-Ended Small-Signal Gain 26 32 dB Notes: 8. Amplifier in limiting mode. Input is a 200MHz square wave. 9. Deterministic jitter measured using 2.5Gbps K28.5 pattern, VID = 10mVPP. 10. Random jitter measured using 2.5Gbps K28.7 pattern, VID = 10mVPP. 11. 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 1dB-4.5 dB, shown in the AC characteristics table, will be 0.5dB-3dB Optical Hysteresis. 12. 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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