參數(shù)資料
型號: LXT971A
廠商: Intel Corp.
英文描述: 3.3V Dual-Speed Fast Ethernet PHY Transceiver
中文描述: 3.3雙速快速以太網(wǎng)物理層收發(fā)器
文件頁數(shù): 59/90頁
文件大?。?/td> 568K
代理商: LXT971A
LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
59
Table 25. 100BASE-FX Transceiver Characteristics
Parameter
Symbol
Min
Typ
1
Max
Units
Test Conditions
Transmitter
Peak differential output voltage
(single ended)
V
OP
0.6
1.5
V
Signal rise/fall time
T
RF
1.9
ns
10 <–> 90%
2.0 pF load
Jitter (measured differentially)
1.3
ns
Receiver
Peak differential input voltage
V
IP
0.55
1.5
V
Common mode input range
V
CMIR
V
CC
- 0.7
V
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
testing.
Table 26. 10BASE-T Transceiver Characteristics
Parameter
Symbol
Min
Typ
Max
Units
Test Conditions
Transmitter
Peak differential output
voltage
V
OP
2.2
2.5
2.8
V
With transformer, line
replaced by 100
resistor
Transition timing jitter added
by the MAU and PLS
sections
0
2
11
ns
After line model
specified by IEEE
802.3 for 10BASE-T
MAU
Receiver
Receive Input Impedance
Z
IN
22
k
Differential Squelch
Threshold
V
DS
300
420
585
mV
Table 27. 10BASE-T Link Integrity Timing Characteristics
Parameter
Symbol
Min
Typ
Max
Units
Test Conditions
Time Link Loss Receive
T
LL
50
150
ms
Link Pulse
T
LP
2
7
Link Pulses
Link Min Receive Timer
T
LR
M
IN
2
7
ms
Link Max Receive Timer
T
LR
M
AX
50
150
ms
Link Transmit Period
Tlt
8
24
ms
Link Pulse Width
Tlpw
60
150
ns
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
testing.
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