DS1862AB+ Maxim Integrated Products, DS1862AB+ Datasheet - Page 35

• Manufacturer Part Number: DS1862AB+
• Description: IC LASR CTRLR 7CHAN 5.5V 25CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controller (Fiber Optic)r

Specifications of DS1862AB+

• Data Rate: 10Gbps
• Number Of Channels: 7
• Voltage - Supply: 2.9 V ~ 5.5 V
• Current - Supply: 3mA
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 25-CSBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

B1h
B2h
B4h
B8h
Table 05h
80h
82h
87h
Bit 0: AEN. A high on AEN enables data placed in the LUT VALUE register to drive MODSET.
Bit 1: TEN. A high on TEN enables the LUT INDEX POINTER to fetch data from the LUT.
Bit 2: SEEB. A high on SEEB disables EEPROM writes of Shadowed EEPROM locations.
Bit 3: Reserved.
Bit 4: Reserved.
Bit 5: Reserved.
Bit 6: Reserved.
Bit 7: Reserved.
Bit 0: Reserved.
Bit 1: Reserved.
Bit 2: QT HIGH BIAS Flag. This flag indicates that the current entering BIASSET is above the threshold.
Bit 3: QT HIGH TX-P Flag. This flag indicates that TX-P is above the threshold.
Bit 4: QT LOW TX-P Flag. This flag indicates that TX-P is below the threshold.
Bit 5: Reserved.
Bit 6: SHUTDOWN Flag. A high indicates that the DS1862A is in shutdown mode and that FETG is asserted.
Bit 7: SAFETY Flag. A high indicates that a safety fault (quick trip) has occurred.
• LUT VALUE ......................<R-Module/W-Module><Shadowed Nonvolatile><00> This register contains the
• LUT_CONF .......................<R-Module/W-Module><Shadowed Nonvolatile><03>
• DAC STATUS ...................<R-Module/W-Module><Status><xx0xxx00b>
• MOD_PW_CHNG .............<R-never/W-Module><Shadowed Nonvolatile><00h> This is the 32-bit location that
• DS60 SCALE ....................<R-all/W-Factory><Nonvolatile><Factory Trimmed> This unique 16-bit value sets
• LM50 SCALE ....................<R-all/W-Factory><Nonvolatile><Factory Trimmed> This unique 16-bit value sets
• V
THRSET_VALUE
XFP Laser Control and Digital Diagnostic IC
______________________________________________________________________________________
................<R-all/W-all><Shadowed Nonvolatile><80> This 8-bit value sets the voltage on the
fetched LUT value that drives the MODSET current. It can be read or overwritten to
directly control the MODSET current (manual mode).
the DS1862A uses to compare with the PWE to grant module password access. A
Read result is always <FFh>.
the SCALE register for use with a DS60 temperature sensor on AUX2MON.
the SCALE register for use with a LM50 temperature sensor on AUX2MON.
signal conditioner voltage source, THRSET.
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