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DS1874 Datasheet(PDF) 7 Page - Maxim Integrated Products |
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DS1874 Datasheet(HTML) 7 Page - Maxim Integrated Products |
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7 / 88 page  PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SCLOUT Clock Frequency fSCLOUT (Note 13) 833 kHz SCLOUT Duty Cycle t3WDC 50 % SDAOUT Setup Time tDS 100 ns SDAOUT Hold Time tDH 100 ns CSELOUT Pulse-Width Low tCSW 500 ns CSELOUT Leading Time Before the First SCLOUT Edge tL 500 ns CSELOUT Trailing Time After the Last SCLOUT Edge tT (Note 14) 500 ns SDAOUT, SCLOUT Load CB3W Total bus capacitance on one line (Note 14) 10 pF PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output-Enable Time Following POA tINIT (Note 8) 20 ms Binary Search Time tSEARCH (Note 12) 8 10 BIAS Samples 3-WIRE DIGITAL INTERFACE SPECIFICATION (VCC = +2.85V to +3.9V, TA = -40°C to +95°C, timing referenced to VIL(MAX) and VIH(MIN), unless otherwise noted. See Figure 15.) SFP+ Controller with Digital LDD Interface _______________________________________________________________________________________ 7 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS TXD Enable tOFF From TXD (Notes 5, 6) 5 μs Recovery from TXD Disable (Figure 14) tON From TXD (Notes 5, 7) 1 ms Recovery After Power-Up tINIT_DAC From VCC > VCC LO alarm (Notes 5, 8) 20 ms tINITR1 From TXD 131 Fault Reset Time (to TXF = 0) tINITR2 From VCC > VCC LO alarm (Note 8) 161 ms Fault Assert Time (to TXF = 1) tFAULT After HTXP, LTXP, HBATH, IBIASMAX (Note 9) 6.4 55 μs LOSOUT Assert Time tLOSS_ON LLOS (Notes 9, 10) 6.4 55 μs LOSOUT Deassert Time tLOSS_OFF HLOS (Notes 9, 11) 6.4 55 μs TIMING CHARACTERISTICS (CONTROL LOOP AND QUICK TRIP) (VCC = +2.85V to +3.9V, TA = -40°C to +95°C, unless otherwise noted.) AC ELECTRICAL CHARACTERISTICS (VCC = +2.85V to +3.9V, TA = -40°C to +95°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Thermometer Error TERR -40°C to +95°C -3 +3 °C DIGITAL THERMOMETER CHARACTERISTICS (VCC = +2.85V to +3.9V, TA = -40°C to +95°C, unless otherwise noted.) |
Similar Part No. - DS1874 |
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Similar Description - DS1874 |
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