VSC7135 Datasheet, PDF (5/16 Pages) Vitesse Semiconductor Corporation – 1.25Gbits/sec Gigabit Ethernet Transceiver

VITESSE
SEMICONDUCTOR CORPORATION
Data Sheet
VSC7135
1.25Gbits/sec
Gigabit Ethernet Transceiver
AC Characteristics
Figure 4: Transmit Timing Waveforms
REFCLK
T₁
T₂
T0:9
10 Bit Data
Data Valid
Data Valid
Data Valid
Table 1: Transmit AC Characteristics
Parameters
T₁
T₂
T_SDR,T_SDF
T_LAT
T_J
T_DJ
Description
Min
Max Units
T0:9 Setup time to the rising
edge of REFCLK
1.5
T0:9 hold time after the
rising edge of REFCLK
1.0
—
ns.
—
ns.
TX+/TX- rise and fall time
—
300
ps.
Latentcy from rising edge of
REFCLK to T0 appearing on 11bc - 1ns
ns.
TX+/TX-
Transmitter Output Jitter Allocation
Total data output jitter (p-p)
—
192
ps.
Serial data output
deterministic jitter (p-p)
—
80
ps.
Conditions
Measured between thevalid
data level of T0:9 to the 1.4V
point of REFCLK
20% to 80%, 75 Ohm load to
Vss, Tested on a sample basis
bc = Bit clocks
ns = Nano second
IEEE 802.3Z Clause 38.68,
tested on a sample basis
IEEE 802.3Z Clause 38.69,
tested on a sample basis
G52146-0, Rev. 4.0
5/28/98
© VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: [phone]
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