參數(shù)資料
型號(hào): L84225
英文描述: L84225 100BaseTX/FX/10BaseT Physical Layer Device technical manual 4/02
中文描述: L84225 100BaseTX/FX/10BaseT物理層設(shè)備的技術(shù)手冊(cè),4月2日
文件頁數(shù): 92/118頁
文件大?。?/td> 890K
代理商: L84225
92 of 118
April, 2002
L84225 Quad 100BaseTX/FX/10BaseT Phys. Layer Device - Technical Manual
Copyright 1999-2002 by LSI Logic Corporation. All rights reserved.
5.5 Fiber Interface Characteristics, Transmit and Receive
Unless otherwise noted, all test conditions are as follows:
1.
T
A
= 0 to +70 C
V
DD
= 3.3 V 5%
25 MHz 0.01%
2.
3.
4.
REXT = 10K 1%,no load
5.
FXOP/N loading shown in
Figure 12
or equivalent
Sym.
Parameter
Limit
Unit
Conditions
Min
Typ
Max
F
OVH
Fiber Output Level,
High
Fiber Output Level,
Low
Fiber Differential
Input Voltage
Fiber Input Common
Mode Voltage Range
SD/FXEN Input High
Voltage
V
DD
-
1.020
V
DD
-
1.810
0.150
V
DD
-
0.880
V
DD
-
1.620
V
Single ended FXOP/N rela-
tive to GND
Single ended FXOP/N rela-
tive to GND
FXIP/N
F
OVL
V
F
DIV
V
F
CMR
1.35
V
DD
-0.8
V
FXIP/N
F
SDIH
V
SD_THR
-50 mV
V
This spec applies when
device is connected to 5 V
external fiber optic trans-
ceivers. V
SD_THR
is the
voltage applied to the
SD_THR pin and is spec’ed
by F
SDTHR
.
This spec applies when
device is connected to 3.3V
external fiber optic trans-
ceivers. SD_THR is tied to
GND.
VCC -
1.165
V
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