DS1874T+ Maxim Integrated Products, DS1874T+ Datasheet - Page 51

• Manufacturer Part Number: DS1874T+
• Description: IC CTLR SFP+ ANLG LDD 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Controllerr

Specifications of DS1874T+

• 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
• Number Of Outputs: 5
• Duty Cycle (max): 50 %
• Output Voltage: 0 V to 3.9 V
• Mounting Style: SMD/SMT
• Switching Frequency: 0 KHz to 400 KHz
• Operating Supply Voltage: 2.85 V to 3.9 V
• Supply Current: 2.5 mA to 10 mA
• Maximum Operating Temperature: + 95 C
• Fall Time: 300 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 300 ns
• Synchronous Pin: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 90-1874T+000

Table 01h, Register FAh: ALARM EN
FAh
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
MEMORY TYPE
Layout is identical to ALARM
Figure 12) logic. The MASK bit (Table 02h, Register 89h) determines whether this memory exists in Table 01h or
05h.
RESERVED
SFP+ Controller with Digital LDD Interface
BITS 7:4
BIT 7
BIT 3
BIT 2
BIT 1
BIT 0
______________________________________________________________________________________
RESERVED
HBAL:
0 = Disables interrupt from HBAL alarm.
1 = Enables interrupt from HBAL alarm.
RESERVED
TXP HI:
0 = Disables interrupt from TXP HI alarm.
1 = Enables interrupt from TXP HI alarm.
TXP LO:
0 = Disables interrupt from TXP LO alarm.
1 = Enables interrupt from TXP LO alarm.
RESERVED
00h
PW2 or (PW1 and RWTBL1C) or (PW1 and RTBL1C)
PW2 or (PW1 and RWTBL1C)
Nonvolatile (SEE)
1
1
RESERVED
in Lower Memory, Register 72h. Enables alarms to create internal signal FETG (see
RESERVED
HBAL
RESERVED
TXP HI
TXP LO
BIT 0
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