DS1874T+ Maxim Integrated Products, DS1874T+ Datasheet - Page 7

• 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

DIGITAL THERMOMETER CHARACTERISTICS
(V
AC ELECTRICAL CHARACTERISTICS
(V
TIMING CHARACTERISTICS (CONTROL LOOP AND QUICK TRIP)
(V
3-WIRE DIGITAL INTERFACE SPECIFICATION
(V
Output-Enable Time Following POA
Binary Search Time
Thermometer Error
TXD Enable
Recovery from TXD Disable
(Figure 14)
Recovery After Power-Up
Fault Reset Time (to TXF = 0)
Fault Assert Time (to TXF = 1)
LOSOUT Assert Time
LOSOUT Deassert Time
SCLOUT Clock Frequency
SCLOUT Duty Cycle
SDAOUT Setup Time
SDAOUT Hold Time
CSELOUT Pulse-Width Low
CSELOUT Leading Time Before
the First SCLOUT Edge
CSELOUT Trailing Time After the
Last SCLOUT Edge
SDAOUT, SCLOUT Load
CC
CC
CC
CC
= +2.85V to +3.9V, T
= +2.85V to +3.9V, T
= +2.85V to +3.9V, T
= +2.85V to +3.9V, T
PARAMETER
PARAMETER
PARAMETER
PARAMETER
SFP+ Controller with Digital LDD Interface
_______________________________________________________________________________________
A
A
A
A
= -40°C to +95°C, unless otherwise noted.)
= -40°C to +95°C, unless otherwise noted.)
= -40°C to +95°C, unless otherwise noted.)
= -40°C to +95°C, timing referenced to V
t
SYMBOL
SYMBOL
SYMBOL
t
SYMBOL
t
LOSS_OFF
t
LOSS_ON
f
INIT_DAC
SEARCH
SCLOUT
t
t
t
t
C
T
INITR1
INITR2
FAULT
3WDC
t
t
t
t
INIT
t
CSW
t
OFF
ERR
B3W
ON
DH
DS
t
t
L
T
(Note 8)
(Note 12)
-40°C to +95°C
From
From
From
From
From
After HTXP, LTXP, HBATH, IBIASMAX
(Note 9)
LLOS (Notes 9, 10)
HLOS (Notes 9, 11)
(Note 13)
(Note 14)
Total bus capacitance on one line (Note 14)
V
V
TXD (Notes 5, 6)
TXD (Notes 5, 7)
TXD
CC
CC
> VCC LO alarm (Notes 5, 8)
> VCC LO alarm (Note 8)
CONDITIONS
CONDITIONS
CONDITIONS
CONDITIONS
IL(MAX)
and V
IH(MIN)
, unless otherwise noted. See Figure 15.)
MIN
MIN
MIN
MIN
100
100
500
500
500
6.4
6.4
6.4
-3
8
TYP
TYP
TYP
TYP
131
161
833
20
20
50
MAX
MAX
MAX
MAX
+3
10
55
55
55
10
5
1
Samples
UNITS
UNITS
UNITS
UNITS
BIAS
kHz
ms
ms
ms
ms
°C
μs
μs
μs
μs
pF
ns
ns
ns
ns
ns
%
7