DS1874T+ Maxim Integrated Products, DS1874T+ Datasheet - Page 36

• 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

SFP+ Controller with Digital LDD Interface
Lower Memory, Register 08h–09h: V
Lower Memory, Register 0Ch–0Dh: V
Lower Memory, Register 10h–11h: MON1 ALARM HI
Lower Memory, Register 14h–15h: MON1 WARN HI
Lower Memory, Register 18h–19h: MON2 ALARM HI
Lower Memory, Register 1Ch–1Dh: MON2 WARN HI
Lower Memory, Register 20h–21h: MON3 ALARM HI
Lower Memory, Register 24h–25h: MON3 WARN HI
Lower Memory, Register 28h–29h: MON4 ALARM HI
Lower Memory, Register 2Ch–2Dh: MON4 WARN HI
36
08h, 0Ch, 10h,
14h, 18h, 1Ch,
09h, 0Dh, 11h,
15h, 19h, 1Dh,
20h, 24h, 28h,
21h, 25h, 29h,
______________________________________________________________________________________
2Ch
2Dh
Voltage measurement updates above this unsigned threshold set corresponding alarm or warning bits. Voltage
measurements equal to or below this threshold clear alarm or warning bits.
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
BIT 7
2
2
15
7
2
2
14
6
CC
CC
FFFFh
All
PW2 or (PW1 and WLOWER)
Nonvolatile (SEE)
ALARM HI
WARN HI
2
2
13
5
2
2
12
4
2
2
11
3
2
2
10
2
2
2
9
1
BIT 0
2
2
8
0