Cirrus Logic CS8952 - Manual (Page 7)

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
- - 0.5 ns
Duty Cycle Distortion t
DCD
- - +/-0.5 ns
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
- - 1.6 ns
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