DS1873T+ Maxim Integrated Products, DS1873T+ Datasheet - Page 51

• Manufacturer Part Number: DS1873T+
• Description: IC CTLR SFP+ ANLG LDD 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controllerr

Specifications of DS1873T+

• Number Of Channels: 1
• Voltage - Supply: 2.85 V ~ 3.9 V
• Current - Supply: 2.5mA
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 28-WFQFN Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 90-1873T+000

Table 01h, Register FBh: ALARM EN
FBh
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
MEMORY TYPE
Layout is identical to ALARM
whether this memory exists in Table 01h or 05h.
SFP+ Controller with Analog LDD Interface
BITS 5:4
BITS 2:0
LOS HI
BIT 7
BIT 7
BIT 6
BIT 3
______________________________________________________________________________________
LOS HI: Enables alarm to create TXFINT (Lower Memory, Register 71h) logic.
0 = Disables interrupt from LOS HI alarm.
1 = Enables interrupt from LOS HI alarm.
LOS LO: Enables alarm to create TXFINT (Lower Memory, Register 71h) logic.
0 = Disables interrupt from LOS LO alarm.
1 = Enables interrupt from LOS LO alarm.
RESERVED
BIAS MAX: Enables alarm to create internal signal FETG (see Figure 13) logic.
0 = Disables interrupt from BIAS MAX alarm.
1 = Enables interrupt from BIAS MAX alarm.
RESERVED
LOS LO
00h
PW2 or (PW1 and RWTBL1C) or (PW1 and RTBL1C)
PW2 or (PW1 and RWTBL1C)
Nonvolatile (SEE)
0
RESERVED
0
in Lower Memory, Register 73h. The MASK bit (Table 02h, Register 89h) determines
RESERVED
BIAS MAX
RESERVED
RESERVED
RESERVED
BIT 0
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