®
VITESSE
SEMICONDUCTOR CORPORATION
Quad Transceiver
for Gigabit Ethernet and Fibre Channel
Advance Product Information
VSC7182
Figure 5: RFC and TCi Waveforms
T
L
RFC
TCi
T
H
V
IH(MIN)
V
IL(MAX)
RFCO0
RFCO1
T
P
Table 5: Reference Clock Requirements
Parameters
FR
Description
Frequency range
Min
105
Typ
Max
136
Units
MHz
Conditions
Range over which both transmit
and receive reference clocks on
any link may be centered.
Maximum frequency offset
between transmit and receive
reference clocks on one link.
FO
T
P
DC
T
R
, T
F
DC
T
RCR
,T
RCF
Frequency offset
Delay from RFC to RFCO0/1
RFC0/1 duty cycle
RCF0/1 rise and fall time
RFC/TCi duty cycle
RFC/TCi rise and fall time
-200
1.97
40
0.25
35
—
200
3.58
60
1.5
65
1.5
ppm
ns
%
ns
%
ns
Between V
IL(MAX)
and V
IH(MIN)
Measured at 1.4V
Between V
IL(MAX)
and V
IH(MIN)
Page 8
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VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
G52307-0, Rev 2.2
10/10/00
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
