lxt971a Intel Corporation, lxt971a Datasheet - Page 59

• Manufacturer Part Number: lxt971a
• Description: 3.3v Dual-speed Fast Ethernet Phy Transceiver
• Manufacturer: Intel Corporation

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