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DS1886 Datasheet(PDF) 11 Page - Maxim Integrated Products |
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DS1886 Datasheet(HTML) 11 Page - Maxim Integrated Products |
11 / 92 page ���������������������������������������������������������������� Maxim Integrated Products 11 DS1886 SFP and PON ONU Controller with Digital LDD Interface DAC ELECTRICAL CHARACTERISTICS (VCC = +2.97V to +3.63V, TA = -40NC to +95NC, unless otherwise noted.) (Note 1) ANALOG VOLTAGE MONITORING CHARACTERISTICS (VCC = +2.97V to +3.63V, TA = -40NC to +95NC, unless otherwise noted.) (Note 1) DIGITAL THERMOMETER CHARACTERISTICS (VCC = +2.97V to +3.63V, TA = -40NC to +95NC, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Delta-Sigma Input Clock Frequency fDS 2.1 MHz Reference Voltage Input (REFIN) VREFIN Minimum 0.1µF to GND 2 VCC V Output Range 0 VREFIN V Output Resolution See the Delta-Sigma Output and Reference section for details (DAC FS[9:2] = FFh) 10 Bits Output Impedance RDS VREFIN = 2.5V 45 100 I Recovery After Power-Up tINIT_DAC From VCC > VCC LO alarm or warning See the Startup Timing Characteristics table ms PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ADC Resolution (Note 4) 13 Bits INL TA = +25NC -3 +3 LSB DNL -1 +1 LSB Update Rate for Temperature, TXMON (TXB/TXP), RSSIP-RSSIN, VCC tRR RSSIP-RSSIN requires only a coarse conversion (Note 5) 30 ms Update Rate for RSSIP-RSSIN tR/R2 RSSIP-RSSIN requires a fine conversion 36 ms Input/Supply Offset (TXMON, RSSIP, RSSIN, VCC) VOS (Notes 5, 6) -1 0 +1 LSB Factory Setting Full Scale TXMON and RSSIP-RSSIN coarse (Notes 6, 7) 2.5 V VCC (Note 7) 6.5536 RSSIP-RSSIN fine (Note 7) 312.5 µV Temperature LSB Weighting 1/256 N C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Thermometer Error TERR -40NC to +95NC, guaranteed by design -3 +3 N C |
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