VSC7126 Datasheet, PDF (7/16 Pages) Vitesse Semiconductor Corporation – 1.0625 Gbits/sec Fibre Channel Transceiver

Datasheet
VSC7126
TBC
VITESSE
SEMICONDUCTOR CORPORATION
Figure 6: TBC Timing Waveforms
T_H
T_L
1.0625 Gbits/sec Fibre
Channel Transceiver
V_ih(min)
V_il(max)
Table 3: Reference Clock Requirements
Parameters
Description
FR
Frequency Range
Min Max
50
55
Units
MHz
Conditions
Range over which both transmit and receive
reference clocks on any link may be centered
FO
Frequency Offset
-200 200
ppm.
Mean frequency offset between transmit and
receive reference clocks on one link
T_L,T_H
Pulse Width, Low / High
4.5
----
DC
T_RCR,T_RCF
J_T
TBC duty cycle
TBC rise and fall time
Total jitter tolerance on
REFCLK
30
70
---- 2.0
---- 120
ns
Low is measured from V_il(max) to V_il(max),
High is measured from V_ih(min) to V_ih(min)
%
Measured at 1.5V
ns.
Between V_il(max) and V_ih(min)
ps
Peak-to-peak total jitter for frequencies
between 50KHz and 7MHz
G52148-0, Rev. 4.3
3/4/99
© VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: [phone]
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