Manual

CS8952
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver 7
DS206F1
100BASE-X CHARACTERISTICS
Parameter Symbol Min Typ Max Unit
100BASE-TX Transmitter
TX Differential Output Voltage (Peak) V
OP
0.95 - 1.05 V
Signal Amplitude Symmetry V
SYM
98 - 102 %
Signal Rise/Fall Time t
RF
3.0 - 5.0 ns
Rise/Fall Symmetry t
RFS
--0.5ns
Duty Cycle Distortion t
DCD
--+/-0.5ns
Overshoot/Undershoot t
OS
--5%
Transmit Jitter t
JT
- 400 1400 ps
TX Differential Output Impedance Z
OUT
- 100 - ohms
100BASE-TX Receiver
Receive Signal Detect Assert Threshold - - 1.0 V
p-p
Receive Signal Detect De-assert Threshold 0.2 - - V
p-p
Receive Signal Detect Assert Time - - 1000 µs
Receive Signal Detect De-assert Time - - 350 µs
100BASE-FX Transmitter
TX_NRZ+/- Output Voltage - Low V
1
-1.830 - -1.605 V
TX_NRZ+/- Output Voltage - High V
2
-1.035 - -0.880 V
Signal Rise/Fall Time T
RF
--1.6ns
100Base-FX Receiver
RX_NRZ+/- Input Voltage - Low V
3
-1.830 - -1.605 V
RX_NRZ+/- Input Voltage - High V
4
-1.035 - -0.880 V
Common Mode Input Range V
CMIP
-3.56-V
V
1
V
2
V
DD
0
TX_NRZ+/-
V
3
V
4
RX_NRZ+/-
RX/TX Signaling for 100Base-FX