MIC3003 Datasheet, PDF (47/75 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3003
Laser Diode Bias Current
D[7]
read-only
D[6]
read-only
D[5]
read-only
D[4]
read-only
D[3]
read-only
D[2]
read-only
D[1]
read-only
D[0]
read-only
Default Value
0000 0000b = 00h (0mA)⁽³⁾
Serial address
A2h
Byte addresses
MS byte (ILDh):100 = 64h
LS byte (ILDl):101 = 65h
Each LSB of ILDh represents 512 μA, and each LS bit of ILDl represents 2 μA. ILDh is used in conjunction with ILDl to yield an
unsigned sixteen-bit value.
In external calibration mode, the host should process the results using the appropriate slope and offset coefficients. ILDh
contains the eight-bit ADC result and ILDl is zero.
In internal calibration mode, the MIC3003’s ALU applies the coefficients stored in (ISLPh:ISLPl) and (IOFFh:IOFFl).
The ILD registers will contain valid data after one ADC conversion cycle.
Transmitted Optical Power
D[7]
read-only
Default Value
Serial address
D[6]
read-only
D[5]
read-only
D[4]
read-only
D[3]
read-only
0000 0000b = 00h (0mW)⁽⁴⁾
A2h
D[2]
read-only
D[1]
read-only
D[0]
read-only
Byte address
MS byte (TXOPh): 102 = 66h
LS byte (TXOPl): 103 = 67h
Each LSB of TXOPh represents 25.6 μW, and each LS bit of TXOPl represents 0.1 μW. TXOPh is used in conjunction with
TXOPl to yield an unsigned sixteen-bit value.
In external calibration mode, the host should process the results using the appropriate slope and offset coefficients. TXOPh
contains the eight-bit ADC result and TXOPl is zero.
In internal calibration mode, the MIC3003’s ALU applies the coefficients stored in (TXSLPh:TXSLPl) and (TXOFFh:TXOFFl).
The TXOP registers will contain valid data after one ADC conversion cycle.
Notes:
3. ILDh will contain measured data after one A/D conversion cycle.
4. TXOPh will contain measured data after one A/D conversion cycle.
November 2009
47
M9999-111209-C
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