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參數(shù)資料
型號: DS1878T+T
廠商: Maxim Integrated Products
文件頁數(shù): 69/101頁
文件大小: 0K
描述: IC CTLR SFP W/DGTL LDD RX 28TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
類型: SFP+ 控制器
輸入類型: 模擬,數(shù)字
輸出類型: 數(shù)字
接口: I²C,LDD,串行
電流 - 電源: 2.5mA
安裝類型: 表面貼裝
封裝/外殼: 28-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 28-TQFN-EP(5x5)
包裝: 帶卷 (TR)
DS1878
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SCLOUT Clock Frequency
fSCLOUT
833
kHz
SCLOUT Duty Cycle
t3WDC
50
%
SDAOUT Setup Time
tDS
100
ns
SDAOUT Hold Time
tDH
100
ns
CSEL1OUT, CSEL2OUT Pulse-
Width Low
tCSW
500
ns
CSEL1OUT, CSEL2OUT Leading
Time Before the First SCLOUT
Edge
tL
500
ns
CSEL1OUT, CSEL2OUT Trailing
Time After the Last SCLOUT
Edge
tT
500
ns
SDAOUT, SCLOUT Load
CB3W
Total bus capacitance on one line
10
pF
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output-Enable Time Following POA
tINIT
(Note 7)
20
ms
Binary Search Time
tSEARCH
(Note 11)
8
10
BIAS
Samples
3-WIRE DIGITAL INTERFACE SPECIFICATION
(VCC = +2.85V to +5.5V, TA = -40°C to +95°C, timing referenced to VIL(MAX) and VIH(MIN), unless otherwise noted.) (Figure 17)
SFP+ Controller with Digital LDD Interface
_______________________________________________________________________________________
7
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TXD Enable
tOFF
From rising TXD to rising TXDOUT
5
μs
Recovery from TXD Disable
tON
From falling TXD to falling TXDOUT
5
μs
tINITR1
From falling TXD
131
Fault Reset Time
(to TXFOUT = 0)
tINITR2
On power-up or falling TXD, when VCC LO
alarm is detected (Note 7)
161
ms
Fault Assert Time
(to TXFOUT = 1)
tFAULT
After HTXP, LTXP, HBATH, IBIASMAX
(Note 8)
6.4
55
μs
LOSOUT Assert Time
tLOSS_ON
LLOS (Notes 8, 9)
6.4
55
μs
LOSOUT Deassert Time
tLOSS_OFF
HLOS (Notes 8, 10)
6.4
55
μs
CONTROL LOOP AND QUICK-TRIP TIMING CHARACTERISTICS
(VCC = +2.85V to +5.5V, TA = -40°C to +95°C, unless otherwise noted.)
AC ELECTRICAL CHARACTERISTICS
(VCC = +2.85V to +5.5V, TA = -40°C to +95°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Thermometer Error
TERR
-40°C to +95°C
-3
+3
°C
DIGITAL THERMOMETER CHARACTERISTICS
(VCC = +2.85V to +5.5V, TA = -40°C to +95°C, unless otherwise noted.)
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