参数资料
型号: DS1874T+T&R
厂商: Maxim Integrated
文件页数: 7/88页
文件大小: 0K
描述: IC CTLR SFP+ ANLG LDD 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 激光二极管控制器
通道数: 1
电源电压: 2.85 V ~ 3.9 V
电流 - 电源: 2.5mA
工作温度: -40°C ~ 95°C
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
安装类型: 表面贴装
其它名称: 90-1874T+TRL

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