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MIC3003GML 数据表(PDF) 44 Page - Micrel Semiconductor |
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MIC3003GML 数据表(HTML) 44 Page - Micrel Semiconductor |
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44 / 75 page ![]() Micrel, Inc. MIC3003 November 2009 44 M9999-111209-C hbwhelp@micrel.com or (408) 955-1690 Bias Current High Warning Threshold D[7] read/write D[6] read/write D[5] read/write D[4] read/write D[3] read/write D[2] read/write D[1] read/write D[0] read/write Default value for both bytes 0000 0000b = 00h (0 mA) Serial address A2h Bytes addresses MS byte (IHIGHh): 20 = 14h LS byte (IHIGHl): 21 = 15h Each LS bit of IHIGHh represents 512 μA and each LS bit of IHIGHl represents 2 μA. The sixteen-bit threshold value (IHIGHh:IHIGHl) is compared,to the sixteen-bit value of the bias current result (ILDh:ILDl). WARN0 bit 3 is set if Result > Threshold. Bias Current Low Warning Threshold D[7] read/write D[6] read/write D[5] read/write D[4] read/write D[3] read/write D[2] read/write D[1] read/write D[0] read/write Default value for both bytes 0000 0000b = 00h (0 mA) Serial address A2h Bytes addresses MS byte (ILOWh): 22 = 16h LS byte (ILOWl): 23 = 17h Each LS bit of ILOWh represents 512 μA and each LS bit of ILOWl represents 2 μA. The sixteen-bit threshold value (ILOWh:ILOWl) is compared to the sixteen-bit value of the bias current result (ILDh:ILDl). WARN0 bit 2 is set if Result < Threshold. TX Optical Power High Warning D[7] read/write D[6] read/write D[5] read/write D[4] read/write D[3] read/write D[2] read/write D[1] read/write D[0] read/write Default value for both bytes 0000 0000b = 00h (0 mW) Serial address A2h Bytes addresses MS byte (TXHIGHh): 28 = 1Ch LS byte (TXHIGHl): 29 = 1Dh Each LS bit of TXHIGHh represents 25.6 μW, and each LS bit of TXHIGHl represents 0.1 μW. The sixteen-bit threshold value (TXHIGHh:TXHIGHl) is compared to the sixteen-bit value of the TX power result (TXOPh:TXOPl).WARN0 bit 1 is set if Result > Threshold. TX Optical Power Low Warning D[7] read/write D[6] read/write D[5] read/write D[4] read/write D[3] read/write D[2] read/write D[1] read/write D[0] read/write Default value for both bytes 0000 0000b = 00h (0 mW) Serial address A2h Byte addresses MS byte (TXLOWh): 30 = 1Eh LS byte (TXLOWl): 31 = 1Fh Each LS bit of TXLOWh represents 25.6 μW, and each LS bit of TXLOWl represents 0.1 μW. The sixteen-bit threshold value (TXLOWh:TXLOWl) is compared,to the sixteen-bit value of the TX power reading (TXOPh:TXOPl). ALARM0 bit 0 is set if Result < Threshold. |
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