VSC7182 Datasheet, PDF (8/18 Pages) Vitesse Semiconductor Corporation – Quad Transceiver for Gigabit Ethernet and Fibre Channel

® VITESSE
SEMICONDUCTOR CORPORATION
Quad Transceiver
for Gigabit Ethernet and Fibre Channel
Advance Product Information
VSC7182
Figure 5: RFC and TCi Waveforms
RFC
TCi
T_L
T_H
V_IH(MIN)
V_IL(MAX)
RFCO0
RFCO1
T_P
Table 5: Reference Clock Requirements
Parameters
Description
FR
Frequency range
FO
Frequency offset
T_P
DC
T_R, T_F
DC
T_RCR,T_RCF
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
Min Typ Max Units
Conditions
Range over which both transmit
105
136 MHz and receive reference clocks on
any link may be centered.
Maximum frequency offset
-200
200 ppm between transmit and receive
reference clocks on one link.
1.97
3.58 ns
40
60
%
0.25
1.5
ns Between V_IL(MAX) and V_IH(MIN)
35
65
% Measured at 1.4V
—
1.5
ns Between V_IL(MAX) and V_IH(MIN)
Page 8
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
Internet: www.vitesse.com
G52307-0, Rev 2.2
10/10/00