參數(shù)資料
型號(hào)： 84225
廠商： LSI Corporation
英文描述： Quad 100BaseTX/100BaseFX/10BaseT Physical Layer Device （Highly Integrated Ethernet Transceiver For Twisted Pair And Fiber Ethernet Applications）(四通道100BaseTX/100BaseFX/10BaseT 物理層處理器（高度集成的以太網(wǎng)雙絞線和光纖數(shù)據(jù)收發(fā)器）)
中文描述： 四100BaseTX/100BaseFX/10BaseT物理層裝置（高度集成的以太網(wǎng)收發(fā)器，雙絞線和光纖以太網(wǎng)的應(yīng)用）（四通道100BaseTX/100BaseFX/10BaseT物理層處理器（高度集成的以太網(wǎng)雙絞線和光纖數(shù)據(jù)收發(fā)器） ）
文件頁數(shù)： 60/86頁
文件大?。?/td> 1297K
代理商： 84225
60
MD400183/A
84225
Fiber Interface Characteristics, Transmit and Receive
Unless otherwise noted, all test conditions are as follows:
1. TA= 0 to +70°C
2. VDD = 3.3V±5%
3. 25 MHz ±0.01%
4. REXT = 10K ±1%, no load
5. FXOP/N Loading Shown in Figure 13 or Equivalent
LIMIT
SYM
F
OVH
PARAMETER
Fiber Output Level, High
MIN
V
DD
1.020
V
DD
1.810
0.150
TYP
MAX
V
DD
0.880
V
DD
1.620
UNIT
Volt
CONDITIONS
-
-
Single ended
FXOP/N Relative to GND
F
OVL
Fiber Output Level, Low
-
-
Volt
Single ended
FXOP/N Relative to GND
F
DIV
Fiber Diffferential Input
Voltage
Volt
FXIP/N
F
CMR
Fiber Input Common
Mode Voltage Range
1.35
V
DD
-0.8
Volt
FXIP/N
F
SDIH
SD/FXEN Input High
Voltage
V
- 50 mV
SD_THR
V
This spec applies when device
is connected to 5 V external
fiber optic transceivers. V
is the voltage applied to the
SD_THR pin and is spec’ed by
F
SDTHR
.
SD_THR
VCC -
1.165
V
This spec applies when device
is connected to 3.3V external
fiber optic transceivers.
SD_THR is tied to GND.
F
SDIL
SD/FXEN Input Low
Voltage
V
+50 mV
SD_THR
V
This spec applies when device
is connected to 5V external
fiber optic transceivers.
V
SD_THR
is the voltage
applied to the SD_THR pin
and is spec’ed by F
SDTHR
.
VCC-
1.475
This spec applies when device
is connected to 3.3V external
fiber optic transceivers.
SD_THR is tied to GND.
F
SDTHR
SD_THR Input Voltage
VCC
-1.3 V
-10%
VCC
1.3 V
VCC
-1.3 V
+10%
V
This spec applies when device
is connected to 5V external
fiber optic transceivers. When
interfacing to 3.3V fiber optic
transceivers, SD_THR is tied to
GND.
For Disabling Fiber Interface
F
DIS
Fiber Interface Disable
Voltage, SD/FXEN Pin
0.45
0.85
Volt
F
LVL
Internal/External Signal
Detect Level Select,
SD_THR Pin
0.45
0.85
Volt
For Selecting Interface to
Either 3.3V or 5 V External
Fiber Transceivers
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